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JP6798237B2 - Demand response response controller - Google Patents
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JP6798237B2 - Demand response response controller - Google Patents

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JP6798237B2
JP6798237B2 JP2016202118A JP2016202118A JP6798237B2 JP 6798237 B2 JP6798237 B2 JP 6798237B2 JP 2016202118 A JP2016202118 A JP 2016202118A JP 2016202118 A JP2016202118 A JP 2016202118A JP 6798237 B2 JP6798237 B2 JP 6798237B2
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誠秀 米山
誠秀 米山
雄三 山本
雄三 山本
健司 糸川
健司 糸川
啓司 小島
啓司 小島
奈都 照井
奈都 照井
大輔 久保井
大輔 久保井
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Tokyo Electric Power Co Holdings Inc
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Description

本発明は、蓄熱式空調システムのデマンドレスポンス応答制御装置に関する。 The present invention relates to a demand response response control device for a heat storage type air conditioning system.

需要電力を平準化するシステムとして、蓄熱式空調システムがある。蓄熱式空調システムは、夜間(22時〜翌8時)に熱源機を運転して蓄熱槽に熱を貯めておき、昼間(8時〜22時)の空調時に蓄熱槽の熱を取り出して利用し需要電力を平準化するシステムである。 There is a heat storage type air conditioning system as a system for leveling the demand power. In the heat storage type air conditioning system, the heat source machine is operated at night (22:00 to 8:00 the next day) to store heat in the heat storage tank, and the heat of the heat storage tank is taken out and used during daytime (8:00 to 22:00) air conditioning. It is a system that equalizes the power demand.

ここで、夏季(6〜9月)の平日13時〜16時の間に需要電力を抑制するピークカット運転を行うことで割引を得られる電力会社との契約(ピーク時間調整契約)がある。例えば、氷蓄熱の蓄熱式空調システムを有した需要家は、ピーク時間調整契約に則り、当該期間の平日13時〜16時の間は冷凍機の運転を強制的に停止して蓄熱槽からの放熱運転を行い、併せて、その間の放熱が不足しないよう予測制御により午前中に冷凍機の追掛運転(冷凍機による冷却運転)を行うようにしている。 Here, there is a contract (peak time adjustment contract) with an electric power company that can obtain a discount by performing a peak cut operation that suppresses power demand between 13:00 and 16:00 on weekdays in the summer (June to September). For example, a customer who has a heat storage air-conditioning system for ice heat storage forcibly stops the operation of the refrigerator during the period from 13:00 to 16:00 on weekdays in accordance with the peak time adjustment contract to dissipate heat from the heat storage tank. At the same time, the follow-up operation of the refrigerator (cooling operation by the refrigerator) is performed in the morning by predictive control so that the heat dissipation during that period is not insufficient.

一方、電力会社から供給する電力が不足しそうな時に、各需要家へ消費電力の削減を要求し、その要求に応じて需要家側が消費電力を調整するデマンドレスポンス(DR、需要応答)対応が注目されている。このデマンドレスポンス対応を実現した氷蓄熱システムとして、ある条件が満たされると、冷熱源を作動させるための消費電力等を削減し、特定エリアの消費電力の削減を図るようにしたものがある(例えば、特許文献1参照)。 On the other hand, when the power supplied by the electric power company is likely to be insufficient, attention is focused on demand response (DR, demand response), which requires each consumer to reduce power consumption and the consumer adjusts the power consumption according to the request. Has been done. As an ice heat storage system that realizes this demand response, when certain conditions are met, the power consumption for operating the cold heat source is reduced, and the power consumption in a specific area is reduced (for example). , Patent Document 1).

すなわち、氷蓄熱槽における伝熱管の内部に第1熱搬送流体を供給してその伝熱管の内側から氷を融解させて取り出した冷熱を放熱対象流体に放熱させる放熱部による第1運転モードと、放氷蓄熱槽における伝熱管の外側に第2熱搬送流体を供給して氷を外側から融解させて取り出した冷熱を放熱対象流体に放熱させる放熱部による第2運転モードと、冷熱源からの冷熱を前記放熱対象流体に放熱させる付加放熱部による付加放熱運転とを有し、第1運転切換条件を、特定エリアにおける消費電力量が設定電力量を超えることが予想されるタイミングとなる条件に設定し、放熱部が第1運転モードと第2運転モードの一方の運転モードで放熱運転を実行中であり、且つ、付加放熱部が付加放熱運転を実行中である場合に、この第1運転切換条件が満たされると、付加放熱部を運転停止させて、冷熱源を作動させるための消費電力等を削減し、特定エリアの消費電力の削減を図るようにしたものである。 That is, a first operation mode in which a first heat transfer fluid is supplied to the inside of a heat transfer tube in an ice heat storage tank, and cold heat taken out by melting ice from the inside of the heat transfer tube is dissipated to a heat radiation target fluid. The second operation mode by the heat dissipation part that supplies the second heat transfer fluid to the outside of the heat transfer tube in the ice release heat storage tank to melt the ice from the outside and dissipate the cold heat taken out to the heat dissipation target fluid, and the cold heat from the cold heat source. Has an additional heat dissipation operation by an additional heat dissipation unit that dissipates heat to the heat dissipation target fluid, and the first operation switching condition is set to a condition at which the power consumption in a specific area is expected to exceed the set power amount. Then, when the heat dissipation unit is executing the heat dissipation operation in one of the first operation mode and the second operation mode, and the additional heat dissipation unit is executing the additional heat dissipation operation, this first operation switching is performed. When the conditions are satisfied, the additional heat radiating unit is stopped to reduce the power consumption for operating the cold heat source, and the power consumption in a specific area is reduced.

特開2015−206543号公報JP 2015-206543

特許文献1のものは、氷蓄熱システムを有する施設を含んだ特定エリアにおける消費電力量が設定電力量を超えると予想されるタイミングになると、冷熱源を作動させるための消費電力等を削減し、特定エリアの消費電力の削減を図り、デマンドレスポンス対応を実現したものである。 In Patent Document 1, when the power consumption in a specific area including a facility having an ice heat storage system is expected to exceed the set power amount, the power consumption for operating the cold heat source is reduced. It is designed to reduce power consumption in a specific area and support demand response.

ピークカット運転は、ピーク時間調整契約に則り、決められた時間帯(夏季(6〜9月)の平日13時〜16時の間)に需要電力を調整制御するので、設定電力量は、ピークカット運転を考慮に入れて設定できるが、実際のデマンドレスポンス対応による電力削減要求は、季節、昼夜問わず、電力会社から、前日、1時間前、10分前等に電力削減の依頼が突発的に来るので、デマンドレスポンス対応制御を効果的に行うためには、突発的な電力削減の依頼にも極力対応できるようにしておくことが望まれる。また、需要家の空調制御に支障を与えずにデマンドレスポンス対応制御することが必要である。 In the peak cut operation, the demand power is adjusted and controlled during the specified time zone (between 13:00 and 16:00 on weekdays in the summer (June to September)) according to the peak time adjustment contract, so the set power amount is the peak cut operation. However, the power reduction request by responding to the actual demand response is suddenly requested by the power company the day before, 1 hour ago, 10 minutes ago, etc. regardless of the season or day and night. Therefore, in order to effectively perform demand response response control, it is desirable to be able to respond to sudden power reduction requests as much as possible. In addition, it is necessary to control demand response without interfering with the air conditioning control of consumers.

本発明の目的は、ピークカット運転を維持しつつ需要家の空調制御に支障を与えずに突発的に発生するデマンドレスポンスにも極力対応できるデマンドレスポンス応答制御装置を提供することである。 An object of the present invention is to provide a demand response response control device capable of responding to a sudden demand response as much as possible without interfering with the air conditioning control of a consumer while maintaining a peak cut operation.

請求項1の発明に係るデマンドレスポンス応答制御装置は、熱源機により所定の蓄熱時間帯に蓄熱槽に冷熱または温熱を蓄熱し、需要電力が大きくなる所定のピークカット時間帯に前記蓄熱槽に蓄熱した冷熱または温熱を消費して需要電力を抑制するピークカット運転を行い、前記蓄熱時間帯または前記ピークカット時間帯以外の時間帯であるデマンドレスポンス応答運転可能時間帯において消費電力の削減要求であるデマンドレスポンス指令に対して所定のデマンドレスポンス応答運転時間だけデマンドレスポンス応答運転を行う蓄熱式空調システムのデマンドレスポンス応答制御装置において、前記デマンドレスポンス指令があったときそのデマンドレスポンス応答開始時刻が前記デマンドレスポンス応答運転可能時間帯であるか否かを判断する運転条件判断部と、前記運転条件判断部でデマンドレスポンス応答開始時刻が前記デマンドレスポンス応答運転可能時間帯であると判断されたときは、前記デマンドレスポンス応答運転時間を満たすデマンドレスポンス応答運転を行うことができる蓄熱余力が前記蓄熱槽にあるか否かを判断する蓄熱余力判断部と、前記蓄熱余力判断部で蓄熱余力が前記蓄熱槽にあると判断されたときは、デマンドレスポンス応答運転に関係する機器がデマンドレスポンス応答運転に対応できるか否かを判断する運転可否判断部と、前記運転可否判断部で前記機器がデマンドレスポンス応答運転に対応できると判断されたときはデマンドレスポンス応答開始時刻でデマンドレスポンス応答運転を開始しデマンドレスポンス応答運転時間を経過するとデマンドレスポンス応答運転を停止する運転制御装置とを備え、前記運転可否判断部は、前記運転制御装置がデマンドレスポンス応答運転中において空調負荷への空調媒体温度を監視し、前記空調媒体温度が所定範囲を逸脱したときはデマンドレスポンス応答運転を停止することを特徴とする蓄熱式空調システムのデマンドレスポンス応答制御装置。 The demand response response control device according to the invention of claim 1 stores cold or hot heat in a heat storage tank in a predetermined heat storage time zone by a heat source machine, and stores heat in the heat storage tank in a predetermined peak cut time zone when the demand power becomes large. It is a request to reduce power consumption in a demand response response operationable time zone, which is a time zone other than the heat storage time zone or the peak cut time zone, by performing a peak cut operation that consumes the generated cold heat or heat to suppress the power demand. In a demand response response control device of a heat storage type air conditioning system that performs a demand response response operation for a predetermined demand response response operation time in response to a demand response command, when the demand response command is issued, the demand response response start time is the demand response. When the operation condition determination unit for determining whether or not the response operation is possible and the operation condition determination unit determines that the demand response response start time is the demand response response operation time zone, the demand Response Response When the heat storage capacity determination unit that determines whether or not the heat storage capacity that can perform the demand response response operation that satisfies the operation time is present in the heat storage tank, and the heat storage capacity determination unit that determines whether or not the heat storage capacity is in the heat storage tank. When it is determined, the operation availability determination unit that determines whether or not the device related to the demand response response operation can support the demand response response operation and the operation possibility determination unit can support the demand response response operation. When it is determined, the demand response response operation is started at the demand response response start time, and the demand response response operation is stopped when the demand response response operation time elapses. The operation possibility determination unit is provided with the operation. The demand of a heat storage type air conditioning system characterized in that the control device monitors the temperature of the air conditioning medium to the air conditioning load during the demand response response operation and stops the demand response response operation when the air conditioning medium temperature deviates from a predetermined range. Response Response control device.

請求項2の発明に係るデマンドレスポンス応答制御装置は、請求項1の発明において、前記蓄熱余力判断部は、デマンドレスポンス応答開始時刻が前記ピークカット時間帯以前であるときは前記蓄熱余力を下記(1)式で判断し、前記ピークカット時間帯以後であるときは前記蓄熱余力を下記(2)式で判断することを特徴とする。 In the invention of claim 1, the demand response response control device according to the invention of claim 2 has the following heat storage reserve capacity when the demand response response start time is before the peak cut time zone ( It is characterized in that it is judged by the formula 1), and when it is after the peak cut time zone, the heat storage residual capacity is judged by the following formula (2).

蓄熱槽の蓄熱量−ピークカット運転での予測消費熱量>蓄熱余力判断値 …(1)
蓄熱槽の蓄熱量>蓄熱余力判断値 …(2)
請求項3の発明に係るデマンドレスポンス応答制御装置は、請求項2の発明において、前記蓄熱余力判断値は、前記デマンドレスポンス応答運転での消費熱量を確保できる熱量であることを特徴とする。
Heat storage amount in heat storage tank-Predicted heat consumption in peak cut operation> Heat storage capacity judgment value ... (1)
Heat storage amount in heat storage tank> Heat storage capacity judgment value ... (2)
The demand response response control device according to the third aspect of the present invention is characterized in that, in the second aspect of the present invention, the heat storage reserve determination value is a calorific value capable of securing the amount of heat consumed in the demand response response operation.

請求項4の発明に係るデマンドレスポンス応答制御装置は、請求項1の発明において、前記蓄熱余力判断部は、前記デマンドレスポンス応答運転の残り対応時間を下記(3)式で計算することを特徴とする。 The demand response response control device according to the fourth aspect of the present invention is characterized in that, in the first aspect of the present invention, the heat storage reserve determination unit calculates the remaining response time of the demand response response operation by the following equation (3). To do.

デマンドレスポンス応答運転の残り対応時間=蓄熱槽の蓄熱量/予測空調負荷 …(3)
請求項5の発明に係るデマンドレスポンス応答制御装置は、請求項4の発明において、前記蓄熱余力判断部は、前記デマンドレスポンス応答運転の残り対応時間が前記デマンドレスポンス応答運転時間を満たすときは前記蓄熱余力が前記蓄熱槽にあると判断することを特徴とする。
Demand response response Remaining response time for operation = heat storage amount in heat storage tank / predicted air conditioning load ... (3)
In the invention of claim 4, the demand response response control device according to the fifth aspect of the present invention is the heat storage capacity determination unit, when the remaining response time of the demand response response operation satisfies the demand response response operation time. It is characterized in that it is determined that the remaining capacity is in the heat storage tank.

請求項6の発明に係るデマンドレスポンス応答制御装置は、請求項2乃至請求項5の発明において、前記蓄熱余力判断部は、前記蓄熱槽の蓄熱量を前記蓄熱槽の水位または温度に基づいて求めることを特徴とする。 In the invention of claims 2 to 5, the demand response response control device according to the invention of claim 6 determines the amount of heat stored in the heat storage tank based on the water level or temperature of the heat storage tank. It is characterized by that.

請求項7の発明に係るデマンドレスポンス応答制御装置は、請求項1乃至請求項6の発明において、前記デマンドレスポンス指令があったとき、デマンドレスポンス応答運転による消費熱量を前記ピークカット運転以前のデマンドレスポンス応答運転可能時間帯に予め蓄熱槽に蓄熱し、昼間の空調時間帯のデマンドレスポンス指令に対してデマンドレスポンス応答運転を行い、デマンドレスポンス指令が無いときは、終日蓄熱使い切り運転ができる予測運転により、残蓄の回避のための、放熱運転を行うことを特徴する。 In the invention of claims 1 to 6, the demand response response control device according to the invention of claim 7 determines the amount of heat consumed by the demand response response operation to the demand response before the peak cut operation when the demand response command is given. Heat is stored in the heat storage tank in advance during the response operation time zone, the demand response response operation is performed in response to the demand response command during the daytime air conditioning time zone, and when there is no demand response command, the heat storage can be used up all day by the predictive operation. It is characterized by performing heat dissipation operation to avoid residual storage.

請求項1の発明によれば、デマンドレスポンス応答開始時刻が蓄熱時間帯またはピークカット時間帯以外のデマンドレスポンス応答運転可能時間帯において、デマンドレスポンス応答運転を行うことができる蓄熱余力が蓄熱槽にあり、デマンドレスポンス応答運転に関係する機器がデマンドレスポンス応答運転に対応できるときは、デマンドレスポンス応答開始時刻でデマンドレスポンス応答運転を開始し、デマンドレスポンス応答運転時間を経過するとデマンドレスポンス応答運転を停止するので、ピークカット運転を維持しつつ突発的に発生するデマンドレスポンスにも極力対応できる。また、デマンドレスポンス応答運転中において空調負荷への空調冷媒温度が所定範囲を逸脱したときはデマンドレスポンス応答運転を停止するので、デマンドレスポンス応答運転により需要家の空調制御が阻害されることを防止できる。 According to the invention of claim 1, the heat storage tank has a heat storage capacity capable of performing the demand response response operation in the demand response response operation operable time zone other than the heat storage time zone or the peak cut time zone. , When the equipment related to the demand response response operation can support the demand response response operation, the demand response response operation is started at the demand response response start time, and the demand response response operation is stopped when the demand response response operation time elapses. , It is possible to respond to sudden demand response as much as possible while maintaining peak cut operation. Further, since the demand response response operation is stopped when the air conditioning refrigerant temperature for the air conditioning load deviates from the predetermined range during the demand response response operation, it is possible to prevent the air conditioning control of the consumer from being hindered by the demand response response operation. ..

請求項2の発明によれば、請求項1の発明の効果に加え、デマンドレスポンス応答開始時刻がピークカット時間帯以前であるときは、蓄熱余力の有無を、蓄熱槽の蓄熱量−ピークカット運転での予測消費熱量>蓄熱余力判断値で判断し、以後であるときは、蓄熱槽の蓄熱量>蓄熱余力判断値で判断するので、ピークカット運転での消費熱量を考慮した蓄熱余力の判断が合理的に行える。 According to the invention of claim 2, in addition to the effect of the invention of claim 1, when the demand response response start time is before the peak cut time zone, the presence or absence of the heat storage reserve is determined by the heat storage amount of the heat storage tank-the peak cut operation. Judgment is based on the predicted heat consumption> the heat storage capacity judgment value in, and after that, the heat storage capacity in the heat storage tank> the heat storage capacity judgment value is used to judge the heat storage capacity in consideration of the heat consumption in the peak cut operation. It can be done rationally.

請求項3の発明によれば、請求項2の発明の効果に加え、蓄熱余力判断値をデマンドレスポンス応答運転での消費熱量を確保できる熱量とするので、デマンドレスポンス応答運転を行える適切な蓄熱余力判断値とすることができる。 According to the invention of claim 3, in addition to the effect of the invention of claim 2, since the heat storage reserve determination value is set to the amount of heat that can secure the heat consumption in the demand response response operation, an appropriate heat storage reserve that can perform the demand response response operation. It can be a judgment value.

請求項4の発明によれば、請求項1の発明の効果に加え、デマンドレスポンス応答運転の残り対応時間を、デマンドレスポンス応答運転の残り対応時間=蓄熱槽の蓄熱量/予測空調負荷で計算するので、デマンドレスポンス応答運転の残り対応時間を把握できる。 According to the invention of claim 4, in addition to the effect of the invention of claim 1, the remaining response time of the demand response response operation is calculated by the remaining response time of the demand response response operation = heat storage amount of the heat storage tank / predicted air conditioning load. Therefore, the remaining response time of the demand response response operation can be grasped.

請求項5の発明によれば、請求項4の発明の効果に加え、蓄熱余力判断部は、デマンドレスポンス応答運転の残り対応時間がデマンドレスポンス応答運転時間を満たすときは蓄熱余力が蓄熱槽にあると判断するので、蓄熱余力判断値と比較しなくても蓄熱余力の有無を判断できる。 According to the invention of claim 5, in addition to the effect of the invention of claim 4, the heat storage reserve capacity determination unit has the heat storage reserve capacity in the heat storage tank when the remaining response time of the demand response response operation satisfies the demand response response operation time. Therefore, it is possible to judge the presence or absence of the heat storage reserve without comparing it with the heat storage reserve judgment value.

請求項6の発明によれば、請求項2乃至請求項4の発明の効果に加え、蓄熱槽の蓄熱量を蓄熱槽の水位または温度に基づいて求めるので、例えば氷蓄熱の蓄熱槽に対しては蓄熱槽の水位で、水蓄熱の蓄熱槽に対しては蓄熱槽の温度で蓄熱量を求めることができる。 According to the invention of claim 6, in addition to the effects of the inventions of claims 2 to 4, the amount of heat stored in the heat storage tank is determined based on the water level or temperature of the heat storage tank. Therefore, for example, with respect to the heat storage tank for ice heat storage. Is the water level of the heat storage tank, and for the heat storage tank of water heat storage, the amount of heat storage can be obtained from the temperature of the heat storage tank.

請求項7の発明によれば、請求項1乃至請求項6の発明の効果に加え、ピークカット運転以前のデマンドレスポンス応答運転可能時間帯に予め蓄熱槽に蓄熱し、昼間の空調時間帯のデマンドレスポンス指令に対してデマンドレスポンス応答運転を行い、デマンドレスポンス指令が無いときは、終日蓄熱使い切り運転ができる予測運転により、残蓄の回避のための、放熱運転を行うことを特徴する
ので、無駄なエネルギーを使用することなく、デマンドレスポンス応答運転が可能となる。
According to the invention of claim 7, in addition to the effects of the inventions of claims 1 to 6, heat is stored in the heat storage tank in advance during the demand response response operation operable time zone before the peak cut operation, and the demand during the daytime air conditioning time zone. Demand response response operation is performed in response to the response command, and when there is no demand response command, it is useless because it is characterized by performing heat dissipation operation to avoid residual storage by predictive operation that can use up heat storage all day. Demand response response operation is possible without using energy.

本発明のデマンドレスポンス応答運転装置を氷蓄熱の蓄熱式空調システムに適用したシステム構成図。The system block diagram which applied the demand response response operation apparatus of this invention to the heat storage type air-conditioning system of ice heat storage. 本発明の第1実施形態に係るデマンドレスポンス応答制御装置のブロック構成図。The block block diagram of the demand response response control apparatus which concerns on 1st Embodiment of this invention. 本発明の第1実施形態に係るデマンドレスポンス応答制御装置の動作を示すフローチャート。The flowchart which shows the operation of the demand response response control apparatus which concerns on 1st Embodiment of this invention. 本発明の第2実施形態に係るデマンドレスポンス応答制御装置のブロック構成図。The block block diagram of the demand response response control apparatus which concerns on 2nd Embodiment of this invention. 本発明の第2実施形態に係るデマンドレスポンス応答制御装置の動作を示すフローチャート。The flowchart which shows the operation of the demand response response control apparatus which concerns on 2nd Embodiment of this invention. 本発明の第2実施形態に係るデマンドレスポンス応答制御装置での蓄熱運転、放熱運転、追掛運転による熱量グラフ。The heat quantity graph by the heat storage operation, the heat dissipation operation, and the chasing operation in the demand response response control device which concerns on 2nd Embodiment of this invention.

以下、本発明の実施形態を説明する。図1は本発明のデマンドレスポンス応答運転装置を氷蓄熱の蓄熱式空調システムに適用したシステム構成図である。以下の説明では、本発明のデマンドレスポンス応答運転装置を氷蓄熱の蓄熱式空調システムに適用した場合について説明するが、冷水または温水を蓄熱する水蓄熱の蓄熱式空調システムの場合も同様に適用できる。水蓄熱の蓄熱式空調システムの場合は、熱源機として、冷凍機に代えて例えばヒートポンプを用い、蓄熱槽には、氷に代えて冷水または温水を貯蔵することになる。 Hereinafter, embodiments of the present invention will be described. FIG. 1 is a system configuration diagram in which the demand response response operation device of the present invention is applied to a heat storage type air conditioning system for ice heat storage. In the following description, the case where the demand response response operation device of the present invention is applied to the heat storage type air conditioning system of ice heat storage will be described, but the same can be applied to the heat storage type air conditioning system of water heat storage that stores cold water or hot water. .. In the case of a heat storage type air conditioning system for water heat storage, for example, a heat pump is used instead of a refrigerator as a heat source machine, and cold water or hot water is stored in the heat storage tank instead of ice.

氷蓄熱の蓄熱式空調システムは、冷熱を蓄熱する蓄熱槽11を有し、複数台の冷凍機12a〜12dを有している。冷凍機12a、12bは所定の蓄熱時間帯(例えば夜間22時〜翌8時)に運転され蓄熱槽11に氷として冷熱を蓄熱する。そして、昼間(8時〜22時)のピーク負荷時に合わせて、昼間の空調時に蓄熱槽11の冷水を放熱ポンプ13a、13bで汲み上げて熱交換器14a、14bにて冷水の冷熱を空調冷媒に伝達し、熱交換器14a、14bからの空調冷媒は空調負荷15に供給される。また、冷凍機12c、12dは夜間に貯めた冷熱が昼間に不足しそうな場合に追掛運転される。すなわち、冷凍機12c、12dは冷熱を蓄熱槽11に蓄熱することなく、熱交換器14c、14dにて空調冷媒に伝達し、熱交換器14c、14dからの空調冷媒は空調負荷15に供給される。 The heat storage type air conditioning system for ice heat storage has a heat storage tank 11 for storing cold heat, and has a plurality of refrigerators 12a to 12d. The refrigerators 12a and 12b are operated during a predetermined heat storage time zone (for example, from 22:00 at night to 8:00 the next day) to store cold heat as ice in the heat storage tank 11. Then, in accordance with the peak load in the daytime (8:00 to 22:00), the cold water in the heat storage tank 11 is pumped up by the heat dissipation pumps 13a and 13b during the daytime air conditioning, and the cold heat of the cold water is used as the air conditioning refrigerant by the heat exchangers 14a and 14b. The air-conditioning refrigerant transmitted from the heat exchangers 14a and 14b is supplied to the air-conditioning load 15. Further, the refrigerators 12c and 12d are chased when the cold heat stored at night is likely to be insufficient in the daytime. That is, the refrigerators 12c and 12d transfer the cold heat to the air conditioning refrigerant by the heat exchangers 14c and 14d without storing the cold heat in the heat storage tank 11, and the air conditioning refrigerant from the heat exchangers 14c and 14d is supplied to the air conditioning load 15. To.

さらに、蓄熱式空調システムは、需要電力が大きくなる所定のピークカット時間帯(例えば、夏季(6〜9月)の平日13時〜16時)には、蓄熱槽11に蓄熱した冷熱を消費して需要電力を抑制するピークカット運転を行う。蓄熱式空調システムのこれらの運転制御は、図示省略の蓄熱制御装置で行われる。 Further, the heat storage type air conditioning system consumes the cold heat stored in the heat storage tank 11 during a predetermined peak cut time zone (for example, from 13:00 to 16:00 on weekdays in summer (June to September)) when the demand power becomes large. The peak cut operation is performed to suppress the power demand. These operation controls of the heat storage type air conditioning system are performed by a heat storage control device (not shown).

デマンドレスポンス応答制御装置16は、デマンドレスポンス応答開始時刻t1(以下、DR応答開始時刻t1という)になると、蓄熱時間帯またはピークカット時間帯以外の時間帯であるデマンドレスポンス応答運転可能時間帯(以下、DR応答運転可能時間帯という)において、消費電力の削減要求であるデマンドレスポンス指令(以下、DR指令という)に対して所定のデマンドレスポンス応答運転時間(以下、DR応答運転時間という)だけデマンドレスポンス応答運転(以下、DR応答運転という)を行うものである。DR応答運転時間は、例えば、30分、60分、90分、120分のうちの需要家ごとに予め定められたいずれかの時間である。 When the demand response response start time t1 (hereinafter referred to as DR response start time t1) is reached, the demand response response control device 16 has a demand response response operation possible time zone (hereinafter, referred to as a time zone other than the heat storage time zone or the peak cut time zone). , DR response operation possible time zone), demand response for a predetermined demand response response operation time (hereinafter referred to as DR response operation time) in response to a demand response command (hereinafter referred to as DR command) which is a request for reduction of power consumption. Response operation (hereinafter referred to as DR response operation) is performed. The DR response operation time is, for example, any of 30 minutes, 60 minutes, 90 minutes, and 120 minutes predetermined for each customer.

DR指令はDR応答開始時刻t1とともにデマンドレスポンス応答制御装置16に入力される。デマンドレスポンス応答制御装置16は、DR応答開始時刻t1を入力すると、蓄熱槽11の蓄熱槽水位hを入力し、蓄熱槽水位hに基づいて蓄熱槽11の蓄熱量を算出し蓄熱余力を判断する。そして、蓄熱余力があるときは、DR応答運転に関係する機器、すなわち、放熱ポンプ13a、13b及び冷凍機12c、12dがDR応答運転に対応できるか否かを判断する。この判断は、放熱ポンプ状態a及び冷凍機運転台数bを入力し、放熱ポンプ13a、13bが点検等でシステムから除外されていない状態であり、冷凍機12c、12dが双方とも停止していない状態であるときに、DR応答運転に対応できると判断する。これは、DR応答運転は、追掛運転を行っている冷凍機12c、12dを停止し、放熱ポンプ13a、13bにより蓄熱槽11からの冷熱を空調負荷15に供給する運転を行い、需要電力の消費を抑制するものであるからである。 The DR command is input to the demand response response control device 16 together with the DR response start time t1. When the DR response start time t1 is input, the demand response response control device 16 inputs the heat storage tank water level h of the heat storage tank 11, calculates the heat storage amount of the heat storage tank 11 based on the heat storage tank water level h, and determines the heat storage capacity. .. Then, when there is a residual heat storage capacity, it is determined whether or not the equipment related to the DR response operation, that is, the heat dissipation pumps 13a and 13b and the refrigerators 12c and 12d can support the DR response operation. This judgment is a state in which the heat dissipation pump state a and the number of refrigerators operating b are input, the heat dissipation pumps 13a and 13b are not excluded from the system by inspection, etc., and neither the refrigerators 12c and 12d are stopped. When it is, it is judged that the DR response operation can be supported. In the DR response operation, the refrigerators 12c and 12d that are in pursuit operation are stopped, and the cooling heat from the heat storage tank 11 is supplied to the air conditioning load 15 by the heat dissipation pumps 13a and 13b to meet the demand for power. This is because it suppresses consumption.

次に、DR応答開始時刻t1になると、デマンドレスポンス応答制御装置16は、DR応答運転を開始する。運転中の冷凍機12c、12dに冷凍機停止指令dを出力するとともに、放熱ポンプ13a、13bに運転増指令cを出力する。これにより、停止させた冷凍機12c、12dが分担していた冷熱を放熱ポンプ13a、13bに負担させる。放熱ポンプ13a、13bのうちいずれかが停止していて、要求熱量がある閾値を超えると、放熱ポンプ13が増段する。 Next, at the DR response start time t1, the demand response response control device 16 starts the DR response operation. The refrigerator stop command d is output to the refrigerators 12c and 12d during operation, and the operation increase command c is output to the heat dissipation pumps 13a and 13b. As a result, the heat dissipation pumps 13a and 13b are made to bear the cold heat shared by the stopped refrigerators 12c and 12d. When either one of the heat radiating pumps 13a and 13b is stopped and the required heat amount exceeds a certain threshold value, the heat radiating pump 13 is increased in stage.

また、デマンドレスポンス応答制御装置16は、DR応答運転中において、空調負荷15への空調冷媒温度Tを入力し、空調冷媒温度Tが所定範囲(例えば、7℃〜12℃)を逸脱したときはDR応答運転を停止し、DR応答運転により空調が阻害されることを防止する。空調冷媒温度Tが所定範囲を逸脱しないときはDR応答運転を継続し、DR応答運転時間を経過するとDR応答運転を停止する。これにより、デマンドレスポンス応答制御装置16から、図示省略の蓄熱制御装置に制御が移行する。 Further, the demand response response control device 16 inputs the air conditioning refrigerant temperature T to the air conditioning load 15 during the DR response operation, and when the air conditioning refrigerant temperature T deviates from a predetermined range (for example, 7 ° C to 12 ° C). The DR response operation is stopped to prevent the air conditioning from being hindered by the DR response operation. When the air-conditioning refrigerant temperature T does not deviate from the predetermined range, the DR response operation is continued, and when the DR response operation time elapses, the DR response operation is stopped. As a result, the control shifts from the demand response response control device 16 to the heat storage control device (not shown).

図2は本発明の第1実施形態に係るデマンドレスポンス応答制御装置16のブロック構成図である。デマンドレスポンス応答制御装置16は、演算制御部17、記憶部18、入出力部19、表示装置20を備えたコンピュータで構成され、例えばパーソナルコンピュータ(パソコン)で構成される。 FIG. 2 is a block configuration diagram of the demand response response control device 16 according to the first embodiment of the present invention. The demand response response control device 16 is composed of a computer including an arithmetic control unit 17, a storage unit 18, an input / output unit 19, and a display device 20, and is composed of, for example, a personal computer (personal computer).

記憶部18は、DR応答運転時間記憶部21、蓄熱時間帯記憶部22、ピークカット時間帯記憶部23、蓄熱余力判断値記憶部24、運転記録記憶部25を有し、DR応答運転時間記憶部21にはDR指令に対してDR応答運転を行う時間を定めたDR応答運転時間(30分、60分、90分、120分)が予め記憶され、蓄熱時間帯記憶部22には冷凍機12a、12bによる蓄熱槽11への蓄熱時間帯(例えば夜間22時〜翌8時)が予め記憶され、ピークカット時間帯記憶部23には需要電力が大きくなる所定のピークカット時間帯(例えば、夏季(6〜9月)の平日13時〜16時)が記憶されている。 The storage unit 18 includes a DR response operation time storage unit 21, a heat storage time zone storage unit 22, a peak cut time zone storage unit 23, a heat storage reserve capacity determination value storage unit 24, and an operation record storage unit 25. The DR response operation time (30 minutes, 60 minutes, 90 minutes, 120 minutes) for which the DR response operation is performed in response to the DR command is stored in advance in the unit 21, and the heat storage time zone storage unit 22 stores the refrigerator. The heat storage time zone (for example, from 22:00 at night to 8:00 the next day) in the heat storage tank 11 by 12a and 12b is stored in advance, and the peak cut time zone storage unit 23 has a predetermined peak cut time zone (for example,) in which the required power becomes large. The summer (June to September) weekdays from 13:00 to 16:00) is remembered.

また、蓄熱余力判断値記憶部24にはDR応答運転を行った場合に、蓄熱槽11の蓄熱量が不足しないための閾値である蓄熱余力判断値が記憶されている。蓄熱余力判断値については後述する。さらに、運転記録記憶部25にはデマンドレスポンス応答制御装置16の運転記録が記憶されている。 Further, the heat storage reserve determination value storage unit 24 stores the heat storage reserve determination value, which is a threshold value for preventing the heat storage amount of the heat storage tank 11 from becoming insufficient when the DR response operation is performed. The heat storage capacity judgment value will be described later. Further, the operation record storage unit 25 stores the operation record of the demand response response control device 16.

演算制御部17の運転条件判断部26は、DR指令があったときそのDR応答開始時刻t1がDR応答運転可能時間帯内の時刻か否かを判断する。DR応答運転可能時間帯は、蓄熱時間帯またはピークカット時間帯以外の時間帯である。蓄熱時間帯またはピークカット時間帯には冷凍機12c、12dは運転されておらず、停止できる冷凍機12c、12dがなくDR応答運転ができないから、DR応答開始時刻t1がDR応答運転できる応答運転可能時間帯内の時刻であることを確認する。 When the DR command is issued, the operation condition determination unit 26 of the arithmetic control unit 17 determines whether or not the DR response start time t1 is within the DR response operation possible time zone. The DR response operation possible time zone is a time zone other than the heat storage time zone or the peak cut time zone. Since the refrigerators 12c and 12d are not operated during the heat storage time zone or the peak cut time zone and there are no refrigerators 12c and 12d that can be stopped and the DR response operation cannot be performed, the DR response start time t1 can be the DR response operation. Confirm that the time is within the possible time zone.

すなわち、運転条件判断部26は、入出力装置19からDR応答開始時刻t1を入力すると、蓄熱時間帯記憶部22から蓄熱時間帯を入力するとともに、ピークカット時間帯記憶部23からピークカット時間帯を入力しDR応答運転可能時間帯を確認し、DR応答開始時刻t1がその応答運転可能時間帯内の時刻であるか否かを判断する。そして、その判断結果を運転記録装置25に出力するとともに表示装置20に表示出力する。 That is, when the DR response start time t1 is input from the input / output device 19, the operating condition determination unit 26 inputs the heat storage time zone from the heat storage time zone storage unit 22 and the peak cut time zone from the peak cut time zone storage unit 23. Is input to confirm the DR response operation possible time zone, and it is determined whether or not the DR response start time t1 is within the response operation possible time zone. Then, the determination result is output to the operation recording device 25 and displayed and output to the display device 20.

運転条件判断部26でDR応答開始時刻t1が応答運転可能時間帯内の時刻であると判断されたときは、蓄熱余力判断部27は蓄熱余力が蓄熱槽11にあるか否かを判断する。すなわち、蓄熱余力判断部27は、入出力装置19から蓄熱槽水位hを入力し、蓄熱槽水位hに基づいて蓄熱槽11の蓄熱量を算出し、また、蓄熱余力判断値記憶部24から蓄熱余力判断値を入力し、DR応答運転時間を満たすDR応答運転を行うことができる蓄熱余力が蓄熱槽11にあるか否かを下記(1)または(2)式で判断する。下記(1)式は、DR応答開始時刻t1がピークカット時間帯以前であるとき、下記(2)式は、DR応答開始時刻t1がピークカット時間帯以後であるときである。 When the operation condition determination unit 26 determines that the DR response start time t1 is within the response operation possible time zone, the heat storage reserve determination unit 27 determines whether or not the heat storage reserve is in the heat storage tank 11. That is, the heat storage reserve capacity determination unit 27 inputs the heat storage tank water level h from the input / output device 19, calculates the heat storage amount of the heat storage tank 11 based on the heat storage tank water level h, and also stores heat from the heat storage reserve capacity determination value storage unit 24. The residual capacity determination value is input, and whether or not the heat storage tank 11 has the heat storage residual capacity capable of performing the DR response operation satisfying the DR response operation time is determined by the following equation (1) or (2). The following equation (1) is when the DR response start time t1 is before the peak cut time zone, and the following equation (2) is when the DR response start time t1 is after the peak cut time zone.

蓄熱槽の蓄熱量−ピークカット運転での予測消費熱量>蓄熱余力判断値 …(1)
蓄熱槽の蓄熱量>蓄熱余力判断値 …(2)
蓄熱余力判断値は、デマンドレスポンス応答運転での消費熱量を確保できる熱量である。デマンドレスポンス応答開始時刻がピークカット時間帯以前であるときは、蓄熱槽の蓄熱量からピークカット運転での予測消費熱量を減算した熱量がデマンドレスポンス応答運転を行うことができる熱量以上であることが必要であり、一方、デマンドレスポンス応答開始時刻がピークカット時間帯以後であるときは、ピークカット運転後の終日蓄熱使い切り運転を考慮しデマンドレスポンス応答運転を行うことができる熱量である。ピークカット時間帯での消費熱量や終日蓄熱使い切り運転ができる熱量は過去の実績値から予め求められる。
Heat storage amount in heat storage tank-Predicted heat consumption in peak cut operation> Heat storage capacity judgment value ... (1)
Heat storage amount in heat storage tank> Heat storage capacity judgment value ... (2)
The heat storage capacity judgment value is the amount of heat that can secure the amount of heat consumed in the demand response response operation. When the demand response response start time is before the peak cut time zone, the amount of heat obtained by subtracting the predicted heat consumption in the peak cut operation from the amount of heat stored in the heat storage tank must be greater than or equal to the amount of heat that can be used in the demand response response operation. On the other hand, when the demand response response start time is after the peak cut time zone, the amount of heat is such that the demand response response operation can be performed in consideration of the all-day heat storage exhaustion operation after the peak cut operation. The amount of heat consumed during the peak cut time and the amount of heat that can be used up for all-day heat storage can be obtained in advance from past actual values.

ここで、上記(1)式または(2)式を用いて、DR応答運転を行うことができる蓄熱余力が蓄熱槽11にあるか否かを判断することに代えて、蓄熱余力判断部27は、下記の(3)式でDR応答運転の残り対応時間を計算し、DR応答運転の残り対応時間がDR応答運転時間を満たすときは蓄熱余力が蓄熱槽11にあると判断するようにしてもよい。 Here, instead of using the above equation (1) or (2) to determine whether or not the heat storage tank 11 has the heat storage reserve capable of performing the DR response operation, the heat storage reserve determination unit 27 , Even if the remaining response time of the DR response operation is calculated by the following equation (3) and the remaining response time of the DR response operation satisfies the DR response operation time, it is determined that the heat storage capacity is in the heat storage tank 11. Good.

DR応答運転の残り対応時間=蓄熱槽の蓄熱量/予測空調負荷 …(3)
すなわち、DR応答指令があったとき、蓄熱余力判断部27は、(3)式でDR応答運転の残り対応時間を計算する。そして、DR応答運転の残り対応時間が、DR応答指令のあったDR応答運転に対するDR応答運転時間を満たすか否かを判断し、DR応答運転時間を満たすときは蓄熱余力が蓄熱槽11にあると判断する。この場合は蓄熱余力判断値を用いる必要がない。
Remaining response time for DR response operation = heat storage amount in heat storage tank / predicted air conditioning load ... (3)
That is, when there is a DR response command, the heat storage reserve determination unit 27 calculates the remaining response time of the DR response operation by the equation (3). Then, it is determined whether or not the remaining response time of the DR response operation satisfies the DR response operation time for the DR response operation for which the DR response command is given, and when the DR response operation time is satisfied, the heat storage reserve capacity is in the heat storage tank 11. Judge. In this case, it is not necessary to use the heat storage capacity judgment value.

蓄熱余力判断部27でのDR応答運転を行うことができる蓄熱余力が蓄熱槽11にあるか否かの判断結果や演算結果(蓄熱槽の蓄熱量、DR応答運転の残り対応時間等)は、運転記録装置25に出力されるとともに表示装置20に表示出力される。 The determination result and calculation result (heat storage amount of the heat storage tank, remaining response time of the DR response operation, etc.) of whether or not the heat storage tank 11 is capable of performing the DR response operation in the heat storage reserve determination unit 27 are obtained. It is output to the operation recording device 25 and is displayed and output to the display device 20.

蓄熱余力判断部27で蓄熱余力が蓄熱槽11にあると判断されたときは、運転可否判断部28は、DR応答運転に関係する機器がDR応答運転に対応できるか否かを判断する。運転可否判断部28は、入出力装置19から放熱ポンプ状態aを入力し、DR応答運転に関係する機器である放熱ポンプ13a、13bが点検等でシステムから除外されていない状態(駆動できる状態)であるときはDR応答運転に対応できると判断する。同様に、冷凍機運転台数bを入力し、冷凍機12c、12dが双方とも停止していない状態であるときはDR応答運転に対応できると判断する。これは、前述したように、DR応答運転は、追掛運転を行っている冷凍機12c、12dを停止し、放熱ポンプ14a、14bにより蓄熱槽11からの冷熱を空調負荷15に供給する運転を行い、需要電力の消費を抑制するものであり、冷凍機12c、12dが停止している状態であれば停止すべき冷凍機12がなく、需要電力の抑制に寄与しないからである。運転可否判断部28の判断結果は運転記録装置25に出力されるとともに表示装置20に表示出力される。運転可否判断部28には、入出力装置19から空調冷媒温度Tも入力されているが、これについては後述する。 When the heat storage reserve determination unit 27 determines that the heat storage reserve is in the heat storage tank 11, the operation availability determination unit 28 determines whether or not the equipment related to the DR response operation can support the DR response operation. The operability determination unit 28 inputs the radiating pump state a from the input / output device 19, and the radiating pumps 13a and 13b, which are devices related to the DR response operation, are not excluded from the system by inspection or the like (a state in which they can be driven). If it is, it is judged that the DR response operation can be supported. Similarly, the number of refrigerators operating b is input, and it is determined that the DR response operation can be supported when both the refrigerators 12c and 12d are not stopped. This is because, as described above, in the DR response operation, the refrigerators 12c and 12d that are performing the follow-up operation are stopped, and the cooling heat from the heat storage tank 11 is supplied to the air conditioning load 15 by the heat dissipation pumps 14a and 14b. This is because the consumption of the demand power is suppressed, and if the refrigerators 12c and 12d are stopped, there is no refrigerator 12 to be stopped, which does not contribute to the suppression of the demand power. The determination result of the operability determination unit 28 is output to the operation recording device 25 and is displayed and output to the display device 20. The air conditioner refrigerant temperature T is also input from the input / output device 19 to the operability determination unit 28, which will be described later.

運転可否判断部28で、放熱ポンプ13a、13b、冷凍機12c、12dがDR応答運転に対応できる判断されたときは、運転制御装置29は、DR応答開始時刻となるとDR応答運転を開始する。DR応答運転中において、運転可否判断部28は、入出力装置19から空調冷媒温度Tを入力し、空調負荷15への空調冷媒温度Tが所定範囲(例えば、7℃〜12℃)を逸脱したか否かを判断し、空調負荷15への空調冷媒温度Tが所定範囲を逸脱したときはDR応答運転時間が経過していなくてもDR応答運転を停止する。これによりDR応答運転により空調が阻害されることを防止する。 When the operation availability determination unit 28 determines that the heat dissipation pumps 13a, 13b, the refrigerators 12c, and 12d can handle the DR response operation, the operation control device 29 starts the DR response operation at the DR response start time. During the DR response operation, the operability determination unit 28 inputs the conditioned refrigerant temperature T from the input / output device 19, and the conditioned refrigerant temperature T to the conditioned load 15 deviates from a predetermined range (for example, 7 ° C to 12 ° C). When it is determined whether or not the air conditioning refrigerant temperature T to the air conditioning load 15 deviates from the predetermined range, the DR response operation is stopped even if the DR response operation time has not elapsed. This prevents the air conditioning from being hindered by the DR response operation.

一方、DR応答運転中において、空調負荷15への空調冷媒温度Tが所定範囲を逸脱しないときは、DR応答運転時間を経過するとDR応答運転を停止する。DR応答運転を停止したときは、デマンドレスポンス応答制御装置16から、図示省略の蓄熱制御装置に制御が移行する。また、運転制御装置29の制御結果は運転記録装置25に出力されるとともに表示装置20に表示出力される。 On the other hand, during the DR response operation, if the air conditioning refrigerant temperature T to the air conditioning load 15 does not deviate from the predetermined range, the DR response operation is stopped after the DR response operation time elapses. When the DR response operation is stopped, the control shifts from the demand response response control device 16 to the heat storage control device (not shown). Further, the control result of the operation control device 29 is output to the operation recording device 25 and is displayed and output to the display device 20.

図3は、本発明の第1実施形態に係るデマンドレスポンス応答制御装置の動作を示すフローチャートである。まず、デマンドレスポンス対応の契約加入の有無に際して、デマンドレスポンス応答制御装置を通じてDR応答運転をするかの判断をする(S0)。DR応答運転をする場合、記憶部18のDR応答運転時間記憶部21にDR応答運転時間を予め記憶しておく(S1)。そして、DR指令があると運転条件判断部26は入出力装置19を介してDR応答開始時刻t1を入力し(S2)、DR応答開始時刻t1がDR応答運転可能時間帯内の時刻か否かを判断する(S3)。DR応答開始時刻t1が応答運転可能時間帯内の時刻であると判断されると、蓄熱余力判断部27は蓄熱余力を計算する(S4)。蓄熱余力の計算は、前述したように、蓄熱槽水位hに基づいて蓄熱槽11の蓄熱量を算出し、蓄熱余力判断部27は、蓄熱槽11にDR応答運転を行うことができる蓄熱余力があるか否かを判断する(S5)。 FIG. 3 is a flowchart showing the operation of the demand response response control device according to the first embodiment of the present invention. First, it is determined whether or not the DR response operation is performed through the demand response response control device when the contract for the demand response is subscribed (S0). When performing the DR response operation, the DR response operation time is stored in advance in the DR response operation time storage unit 21 of the storage unit 18 (S1). Then, when there is a DR command, the operation condition determination unit 26 inputs the DR response start time t1 via the input / output device 19 (S2), and whether or not the DR response start time t1 is within the DR response operation possible time zone. Is determined (S3). When it is determined that the DR response start time t1 is within the response operation possible time zone, the heat storage reserve determination unit 27 calculates the heat storage reserve (S4). In the calculation of the heat storage reserve capacity, as described above, the heat storage capacity of the heat storage tank 11 is calculated based on the water level h of the heat storage tank, and the heat storage reserve capacity determination unit 27 has a heat storage reserve capacity capable of performing a DR response operation on the heat storage tank 11. It is determined whether or not there is (S5).

蓄熱余力判断部27は、前述したように、DR応答開始時刻t1がピークカット時間帯以前であるときは(1)式により、DR応答開始時刻t1がピークカット時間帯以後であるときは(2)式により、蓄熱余力が蓄熱槽11にあるか否かを判断する。 As described above, the heat storage reserve determination unit 27 uses Eq. (1) when the DR response start time t1 is before the peak cut time zone, and (2) when the DR response start time t1 is after the peak cut time zone. ) Is used to determine whether or not the heat storage capacity is in the heat storage tank 11.

蓄熱余力判断部27で蓄熱余力が蓄熱槽11にあると判断されたときは、運転可否判断部28は、DR応答運転に関係する機器がDR応答運転可能状態にあるか否かを判断する(S6)。前述したように、運転可否判断部28は、DR応答運転に関係する機器である放熱ポンプ13a、13bが点検等でシステムから除外されていない状態(駆動できる状態)か否か、冷凍機12c、12dが双方とも停止していない状態であるか否かを判断する。 When the heat storage reserve determination unit 27 determines that the heat storage reserve is in the heat storage tank 11, the operation availability determination unit 28 determines whether or not the equipment related to the DR response operation is in the DR response operation capable state ( S6). As described above, the operation enablement determination unit 28 determines whether or not the heat radiation pumps 13a and 13b, which are devices related to the DR response operation, are not excluded from the system by inspection or the like (a state in which they can be driven), and the refrigerator 12c. It is determined whether or not both 12d are in a non-stop state.

そして、運転可否判断部28でDR応答運転に関係する機器がDR応答運転可能状態にあると判断されたときは、運転制御部29はDR応答開始時刻になったか否かを判定し(S7)、DR応答開始時刻になったときはDR応答運転を開始する(S8)。 Then, when the operation availability determination unit 28 determines that the device related to the DR response operation is in the DR response operation enable state, the operation control unit 29 determines whether or not the DR response start time has come (S7). , When the DR response start time is reached, the DR response operation is started (S8).

このDR応答運転中において、運転可否判断部28は、蓄熱式空調システムの放熱運転に支障を与えないか否かを判断する(S9)。前述したように、運転可否判断部28は、空調負荷15への空調冷媒温度Tが所定範囲を逸脱したときはDR応答運転時間が経過していなくてもDR応答運転を停止する(S10)。所定範囲を逸脱しないときは、運転可否判断部28はDR応答運転を経過したか否かを判断し(S11)、DR応答運転を経過したときはDR応答運転を停止する(S10)。 During this DR response operation, the operation availability determination unit 28 determines whether or not the heat dissipation operation of the heat storage type air conditioning system is hindered (S9). As described above, when the air-conditioning refrigerant temperature T to the air-conditioning load 15 deviates from the predetermined range, the operation enable / disable determination unit 28 stops the DR response operation even if the DR response operation time has not elapsed (S10). When it does not deviate from the predetermined range, the operation availability determination unit 28 determines whether or not the DR response operation has elapsed (S11), and stops the DR response operation when the DR response operation has elapsed (S10).

以上のステップS4において「蓄熱余力を計算する」に代えて、「DR応答運転の残り対応時間を計算し」、ステップS5において、DR応答運転の残り対応時間がDR応答運転時間を満たすときは蓄熱余力が蓄熱槽11にあると判断するようにしてもよい。 In step S4 above, instead of "calculating the heat storage reserve", "calculate the remaining response time of the DR response operation", and in step S5, heat storage when the remaining response time of the DR response operation satisfies the DR response operation time. It may be determined that the residual capacity is in the heat storage tank 11.

本発明の第1実施形態によれば、デマンドレスポンス応答運転可能時間帯において、DR応答運転を行うことができる蓄熱余力が蓄熱槽11にあり、DR応答運転に関係する機器がDR応答運転に対応できるときは、DR応答開始時刻でDR応答運転を開始し、DR応答運転時間を経過するとDR応答運転を停止するので、ピークカット運転を維持しつつ突発的に発生するデマンドレスポンスにも極力対応できる。また、DR応答運転中において空調負荷15への空調冷媒温度が所定範囲を逸脱したときはDR応答運転を停止するので、DR応答運転により空調が阻害されることを防止できる。 According to the first embodiment of the present invention, the heat storage tank 11 has a heat storage reserve capable of performing the DR response operation during the demand response response operation possible time zone, and the device related to the DR response operation corresponds to the DR response operation. When possible, the DR response operation is started at the DR response start time, and the DR response operation is stopped when the DR response operation time elapses. Therefore, it is possible to respond as much as possible to the sudden demand response while maintaining the peak cut operation. .. Further, since the DR response operation is stopped when the temperature of the air conditioning refrigerant for the air conditioning load 15 deviates from the predetermined range during the DR response operation, it is possible to prevent the air conditioning from being hindered by the DR response operation.

また、蓄熱槽11の蓄熱量の判断は、蓄熱槽11の水位に基づいて求めるので精度の良い蓄熱量を得ることができ、DR応答開始時刻がピークカット時間帯以前であるときは、ピークカット運転での予測消費熱量を考慮した蓄熱余力判断値を用い、ピークカット時間帯以後であるときは、ピークカット運転後の終日蓄熱使い切り運転ができる熱量を考慮した蓄熱余力判断値を用いるので蓄熱余力の判断が合理的に行える。 Further, since the heat storage amount of the heat storage tank 11 is determined based on the water level of the heat storage tank 11, an accurate heat storage amount can be obtained, and when the DR response start time is before the peak cut time zone, the peak cut is performed. The heat storage reserve judgment value considering the predicted heat consumption during operation is used, and when it is after the peak cut time zone, the heat storage reserve judgment value considering the heat amount that can be used up all day after the peak cut operation is used. Can be reasonably judged.

以上の説明では、放熱ポンプ13a、13bは2台の場合について説明したが、3台以上であってもよい。冷凍機12a〜12dについても、4台で2台の冷凍機12a、12bで蓄熱運転を行い、2台の冷凍機12c、12dで追掛運転を行うようにしたが、4台に限らず、4台以上の冷凍機12にて、蓄熱運転と追掛運転とを分担させるようにしてもよい。また、入出力装置19に蓄熱槽水位hを入力し、蓄熱量を判断しているが、冷水または温水を蓄熱する水蓄熱の蓄熱式空調システムの場合は、蓄熱槽の蓄熱量は温度に基づいて求めることになる。 In the above description, the case where the heat dissipation pumps 13a and 13b are two units has been described, but three or more units may be used. Regarding the refrigerators 12a to 12d, the heat storage operation was performed by the two refrigerators 12a and 12b with four units, and the follow-up operation was performed by the two refrigerators 12c and 12d, but the number is not limited to four. The heat storage operation and the follow-up operation may be shared by four or more refrigerators 12. Further, the heat storage tank water level h is input to the input / output device 19 to determine the heat storage amount. However, in the case of a water heat storage type air conditioning system that stores cold water or hot water, the heat storage amount of the heat storage tank is based on the temperature. Will be sought.

図4は本発明の第2実施形態に係るデマンドレスポンス応答制御装置16のブロック構成図である。この第2実施形態は、図2に示した第1実施形態に対し、DR応答運転による消費熱量をDR応答運転可能時間帯のいずれかで蓄熱槽11に蓄熱する消費熱量蓄熱部30を追加して設けたものである。図2と同一要素には同一符号を付し重複する説明を省略する。図1と同一要素には同一符号を付し重複する説明は省略する。 FIG. 4 is a block configuration diagram of the demand response response control device 16 according to the second embodiment of the present invention. In this second embodiment, the heat consumption heat storage unit 30 that stores the heat consumed by the DR response operation in the heat storage tank 11 in any of the DR response operation possible time zones is added to the first embodiment shown in FIG. It was provided. The same elements as those in FIG. 2 are designated by the same reference numerals, and duplicate description will be omitted. The same elements as those in FIG. 1 are designated by the same reference numerals, and redundant description will be omitted.

図4において、消費熱量蓄熱部30は、DR応答開始時刻t1とともにDR指令を入力すると、DR応答開始時刻t1がピークカット運転帯内の時刻か否かを判断し、ピークカット運転以前であるときは、ピークカット運転以前のDR応答運転可能時間帯に予め蓄熱槽11にDR応答運転による消費熱量を蓄熱できるか否か、もしくは、十分な蓄熱量があるか否かを判断する。ピークカット運転以前のDR応答運転可能時間帯にDR応答運転による消費熱量を予め蓄熱できるときは、冷凍機12a、12bが蓄熱できる時間帯に冷凍機12a、12bに蓄熱指令eを出力し、ピークカット運転以前のDR応答運転可能時間帯において予め蓄熱槽11にDR応答運転による消費熱量を蓄熱する。 In FIG. 4, when the DR command is input together with the DR response start time t1, the heat consumption heat storage unit 30 determines whether or not the DR response start time t1 is within the peak cut operation zone, and is before the peak cut operation. Determines in advance whether or not the amount of heat consumed by the DR response operation can be stored in the heat storage tank 11 during the DR response operation possible time zone before the peak cut operation, or whether or not there is a sufficient amount of heat storage. When the amount of heat consumed by the DR response operation can be stored in advance during the DR response operation possible time before the peak cut operation, the heat storage command e is output to the refrigerators 12a and 12b during the time when the refrigerators 12a and 12b can store heat, and the peak is reached. The amount of heat consumed by the DR response operation is stored in the heat storage tank 11 in advance during the DR response operation possible time zone before the cut operation.

図5は、本発明の第2実施形態に係るデマンドレスポンス応答制御装置の動作を示すフローチャートである。図3に示した本発明の第2実施形態のフローチャートに対し、ステップS5とステップS6との間に、ピークカット運転以前のDR応答運転可能時間帯に予め蓄熱槽11にDR応答運転による消費熱量を蓄熱するためのステップS12、S13を追加したものである。図3と同一ステップには同一符号を付し重複する説明は省略する。 FIG. 5 is a flowchart showing the operation of the demand response response control device according to the second embodiment of the present invention. With respect to the flowchart of the second embodiment of the present invention shown in FIG. 3, the amount of heat consumed by the DR response operation in the heat storage tank 11 in advance during the DR response operation possible time zone before the peak cut operation between steps S5 and S6. Steps S12 and S13 for storing heat are added. The same steps as those in FIG. 3 are designated by the same reference numerals, and redundant description will be omitted.

ステップS5にて、蓄熱余力判断部27で蓄熱余力が蓄熱槽11にあると判断されたときは、消費熱量蓄熱部30は、DR応答運転による消費熱量をピークカット運転以前のDR応答運転可能時間帯に予め蓄熱できるか否かを判断する(S12)。すなわち、消費熱量蓄熱部30は、DR応答開始時刻t1がピークカット運転帯内の時刻か否かを判断し、ピークカット運転以前であるときは、ピークカット運転以前のDR応答運転可能時間帯に予め蓄熱槽11にDR応答運転による消費熱量を蓄熱できるかどうかを判断する。ピークカット運転以前のDR応答運転可能時間帯にDR応答運転による消費熱量を予め蓄熱できるときは、ピークカット運転以前のDR応答運転可能時間帯に予め蓄熱槽11にDR応答運転による消費熱量を蓄熱する(S13)。 When the heat storage reserve determination unit 27 determines in step S5 that the heat storage reserve is in the heat storage tank 11, the heat consumption heat storage unit 30 reduces the heat consumption by the DR response operation to the DR response operation possible time before the peak cut operation. It is determined in advance whether or not heat can be stored in the band (S12). That is, the heat consumption heat storage unit 30 determines whether or not the DR response start time t1 is within the peak cut operation zone, and if it is before the peak cut operation, it is set to the DR response operation possible time zone before the peak cut operation. It is determined in advance whether or not the amount of heat consumed by the DR response operation can be stored in the heat storage tank 11. When the heat consumption by the DR response operation can be stored in advance during the DR response operation possible time before the peak cut operation, the heat consumption by the DR response operation is stored in the heat storage tank 11 in advance during the DR response operation possible time before the peak cut operation. (S13).

図6は本発明の第2実施形態に係るデマンドレスポンス応答制御装置での蓄熱運転、放熱運転、追掛運転による熱量グラフであり、図6(a)はDR応答運転をしない場合の熱量グラフまたはDR応答運転による消費熱量の蓄熱をしない場合の熱量グラフ、図6(b)はDR応答運転による消費熱量の蓄熱をピークカット運転以前のDR応答運転可能時間帯にする場合でDR応答開始時刻t1においてDR応答運転をする熱量グラフ、図6(c)はDR応答運転による消費熱量の蓄熱をピークカット運転以前のDR応答運転可能時間帯に行いDR指令がなかった場合でピークカット運転後の終日蓄熱使い切り運転を考慮し放熱運転をしている場合の熱量グラフである。 FIG. 6 is a heat quantity graph by heat storage operation, heat dissipation operation, and chasing operation in the demand response response control device according to the second embodiment of the present invention, and FIG. 6 (a) is a heat quantity graph or a heat quantity graph when DR response operation is not performed. The heat quantity graph when the heat consumption by the DR response operation is not stored, FIG. 6 (b) shows the DR response start time t1 when the heat storage of the heat consumption by the DR response operation is set to the DR response operation possible time zone before the peak cut operation. FIG. 6 (c) shows a graph of the amount of heat consumed in the DR response operation in the case where the heat storage of the heat consumed by the DR response operation is performed during the DR response operation possible time zone before the peak cut operation and there is no DR command, and the whole day after the peak cut operation. It is a heat quantity graph when the heat dissipation operation is performed in consideration of the heat storage exhaustion operation.

図6(a)において、斜線の塗りつぶしが蓄熱運転による熱量、網掛けの塗りつぶしが放熱運転による熱量、点の塗りつぶしが追掛運転による熱量であり、DR運転をしない場合、またはDR応答運転による消費熱量の蓄熱をしない場合の運転パターンの一例を示している。この一例では、22時〜翌8時の時間帯に、冷凍機12a、12bにより蓄熱運転を行い蓄熱槽11に蓄熱する。そして、8時〜17時に蓄熱槽11からの放熱運転を行い空調負荷15に冷熱を供給し、17時〜22時に冷凍機12c、12dによる追掛運転を行い空調負荷15に冷熱を供給する。また、8時〜17時の間の10時〜13時、及び16時〜17時までは、蓄熱槽11からの放熱運転に加え、冷凍機12c、12dによる追掛運転を行う。さらに、8時〜17時の間の13時〜16時はピークカット運転であり蓄熱槽11からの放熱運転のみとなる。8時〜17時の間の8時〜10時は蓄熱槽11からの放熱運転のみを示しているが、空調負荷15の大きさよって追掛運転をすることもある。 In FIG. 6A, the shaded area is the amount of heat generated by the heat storage operation, the shaded area is the amount of heat generated by the heat dissipation operation, and the point area is the amount of heat generated by the follow-up operation, which is consumed when the DR operation is not performed or due to the DR response operation. An example of an operation pattern when the amount of heat is not stored is shown. In this example, the heat storage operation is performed by the refrigerators 12a and 12b during the time zone from 22:00 to 8:00 the next day, and the heat is stored in the heat storage tank 11. Then, the heat dissipation operation from the heat storage tank 11 is performed from 8:00 to 17:00 to supply cold heat to the air conditioning load 15, and the follow-up operation by the refrigerators 12c and 12d is performed from 17:00 to 22:00 to supply the cold heat to the air conditioning load 15. Further, from 10:00 to 13:00 and from 16:00 to 17:00 between 8:00 and 17:00, in addition to the heat dissipation operation from the heat storage tank 11, the follow-up operation by the refrigerators 12c and 12d is performed. Further, from 13:00 to 16:00 between 8:00 and 17:00, the peak cut operation is performed and only the heat dissipation operation from the heat storage tank 11 is performed. From 8:00 to 17:00 between 8:00 and 17:00, only the heat dissipation operation from the heat storage tank 11 is shown, but the follow-up operation may be performed depending on the size of the air conditioning load 15.

DR応答運転をする場合で、図6(a)の運転パターンでの運転中に、いま、DR応答開始時刻t1が16時でDR応答運転時間が60分であるDR指令があったとする。その際、DR指令は、前日、1時間前、10分前は問わない。その場合は、ピークカット運転以前(13時以前)のDR応答運転可能時間帯に予め蓄熱槽11にDR応答運転による消費熱量を蓄熱できるので、図6(b)に示すように、消費熱量蓄熱部30はピークカット運転以前(13時以前)のDR応答運転可能時間帯に予め蓄熱槽11に16時〜17時のDR応答運転のための消費熱量Q1を蓄熱する。図6(b)では、消費熱量Q1を熱量Q11と熱量Q12とに2分割し、8時〜9時に熱量Q11を蓄熱し、9時〜10時に熱量Q12を蓄熱する場合を示している。 In the case of DR response operation, it is assumed that there is a DR command in which the DR response start time t1 is 16:00 and the DR response operation time is 60 minutes during the operation in the operation pattern of FIG. 6A. At that time, the DR command does not matter the day before, 1 hour before, or 10 minutes before. In that case, the amount of heat consumed by the DR response operation can be stored in the heat storage tank 11 in advance during the DR response operation possible time zone before the peak cut operation (before 13:00). Therefore, as shown in FIG. 6B, the heat consumption amount is stored. The unit 30 stores heat in the heat storage tank 11 in advance during the DR response operation possible time zone before the peak cut operation (before 13:00) for the heat consumption Q1 for the DR response operation from 16:00 to 17:00. FIG. 6B shows a case where the heat consumption Q1 is divided into a heat amount Q11 and a heat amount Q12, the heat amount Q11 is stored from 8:00 to 9:00, and the heat amount Q12 is stored from 9:00 to 10:00.

また、図6(b)の運転パターンにおいて、DR指令がなかったとする。その場合は、図6(c)に示すように、ピークカット運転後の終日使い切り運転により、残蓄を回避するために、放熱運転を行う。 Further, it is assumed that there is no DR command in the operation pattern of FIG. 6 (b). In that case, as shown in FIG. 6 (c), the heat dissipation operation is performed in order to avoid the residual storage by the all-day use-up operation after the peak cut operation.

第2実施形態によれば、第1実施形態の効果に加え、DR応答運転による消費熱量をピークカット運転以前に蓄熱槽11に蓄熱するので、ピークカット運転とあらゆるデマンドレスポンス応答運転に対応できる。 According to the second embodiment, in addition to the effect of the first embodiment, the heat consumption by the DR response operation is stored in the heat storage tank 11 before the peak cut operation, so that the peak cut operation and all demand response response operations can be supported.

このように、本発明の実施形態では、DR応答に対応すべく、事前に冷凍機12c、12dを停止するピークカット時間とDR応答運転時間とを記憶しておき、DR応答があったとき、ピークカット運転を維持できる蓄熱槽11の蓄熱余力を計算し、DR応答運転の消費熱量に振り分けられる放熱量を算出し、突発的に発生するDR指令への対応可否を速やかに判断する。また、空調負荷15への冷熱供給も維持する。 As described above, in the embodiment of the present invention, in order to correspond to the DR response, the peak cut time for stopping the refrigerators 12c and 12d and the DR response operation time are stored in advance, and when there is a DR response, The heat storage capacity of the heat storage tank 11 capable of maintaining the peak cut operation is calculated, the heat radiation amount allocated to the heat consumption amount of the DR response operation is calculated, and whether or not to respond to the suddenly generated DR command is promptly determined. In addition, the cold heat supply to the air conditioning load 15 is also maintained.

以上、本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。 Although some embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

11…蓄熱槽、12…冷凍機、13…放熱ポンプ、14…熱交換器、15…空調負荷、16…デマンドレスポンス応答制御装置、17…演算制御部、18…記憶部、19…入出力部、20…表示装置、21…DR応答運転時間記憶部、22…蓄熱時間帯記憶部、23…ピークカット時間帯記憶部、24…蓄熱余力判断値記憶部、25…運転記録記憶部、26…運転条件判断部、27…蓄熱余力判断部、28…運転可否判断部、29…運転制御装置、30…消費熱量蓄熱部 11 ... Heat storage tank, 12 ... Refrigerator, 13 ... Heat dissipation pump, 14 ... Heat exchanger, 15 ... Air conditioning load, 16 ... Demand response response control device, 17 ... Computational control unit, 18 ... Storage unit, 19 ... Input / output unit , 20 ... Display device, 21 ... DR response operation time storage unit, 22 ... Heat storage time zone storage unit, 23 ... Peak cut time zone storage unit, 24 ... Heat storage capacity judgment value storage unit, 25 ... Operation record storage unit, 26 ... Operating condition judgment unit, 27 ... Heat storage capacity judgment unit, 28 ... Operation availability judgment unit, 29 ... Operation control device, 30 ... Heat consumption heat storage unit

Claims (7)

熱源機により所定の蓄熱時間帯に蓄熱槽に冷熱または温熱を蓄熱し、
需要電力が大きくなる所定のピークカット時間帯に前記蓄熱槽に蓄熱した冷熱または温熱を消費して需要電力を抑制するピークカット運転を行い、
前記蓄熱時間帯または前記ピークカット時間帯以外の時間帯であるデマンドレスポンス応答運転可能時間帯において消費電力の削減要求であるデマンドレスポンス指令に対して所定のデマンドレスポンス応答運転時間だけデマンドレスポンス応答運転を行う蓄熱式空調システムのデマンドレスポンス応答制御装置において、
前記デマンドレスポンス指令があったときそのデマンドレスポンス応答開始時刻が前記デマンドレスポンス応答運転可能時間帯であるか否かを判断する運転条件判断部と、
前記運転条件判断部でデマンドレスポンス応答開始時刻が前記デマンドレスポンス応答運転可能時間帯であると判断されたときは、前記デマンドレスポンス応答運転時間を満たすデマンドレスポンス応答運転を行うことができる蓄熱余力が前記蓄熱槽にあるか否かを判断する蓄熱余力判断部と、
前記蓄熱余力判断部で蓄熱余力が前記蓄熱槽にあると判断されたときは、デマンドレスポンス応答運転に関係する機器がデマンドレスポンス応答運転に対応できるか否かを判断する運転可否判断部と、
前記運転可否判断部で前記機器がデマンドレスポンス応答運転に対応できる判断されたときはデマンドレスポンス応答開始時刻でデマンドレスポンス応答運転を開始しデマンドレスポンス応答運転時間を経過するとデマンドレスポンス応答運転を停止する運転制御装置とを備え、
前記運転可否判断部は、前記運転制御装置がデマンドレスポンス応答運転中において空調負荷への空調媒体温度を監視し、前記空調媒体温度が所定範囲を逸脱したときはデマンドレスポンス応答運転を停止することを特徴とする蓄熱式空調システムのデマンドレスポンス応答制御装置。
Cold or hot heat is stored in the heat storage tank during the specified heat storage time by the heat source machine.
During a predetermined peak cut time when the power demand becomes large, a peak cut operation is performed in which the cold heat or heat stored in the heat storage tank is consumed to suppress the power demand.
Demand response response operation is performed for a predetermined demand response response operation time in response to a demand response command, which is a request for reduction of power consumption, in a demand response response operation operable time zone other than the heat storage time zone or the peak cut time zone. In the demand response response control device of the heat storage type air conditioning system
When the demand response command is issued, the operation condition determination unit that determines whether or not the demand response response start time is in the demand response response operation possible time zone, and
When the operation condition determination unit determines that the demand response response start time is in the demand response response operation possible time zone, the heat storage reserve capacity capable of performing the demand response response operation satisfying the demand response response operation time is described. A heat storage capacity judgment unit that determines whether or not it is in the heat storage tank,
When the heat storage reserve determination unit determines that the heat storage reserve is in the heat storage tank, the operation possibility determination unit that determines whether or not the equipment related to the demand response response operation can support the demand response response operation is used.
When the operation availability determination unit determines that the device can support the demand response response operation, the demand response response operation is started at the demand response response start time and the demand response response operation is stopped when the demand response response operation time elapses. Equipped with a control device
The operation availability determination unit monitors the air conditioning medium temperature to the air conditioning load during the demand response response operation by the operation control device, and stops the demand response response operation when the air conditioning medium temperature deviates from a predetermined range. Demand response response control device for heat storage type air conditioning system.
前記蓄熱余力判断部は、デマンドレスポンス応答開始時刻が前記ピークカット時間帯以前であるときは前記蓄熱余力を下記(1)式で判断し、前記ピークカット時間帯以後であるときは前記蓄熱余力を下記(2)式で判断することを特徴とする請求項1に記載のデマンドレスポンス応答制御装置。
蓄熱槽の蓄熱量−ピークカット運転での予測消費熱量>蓄熱余力判断値 …(1)
蓄熱槽の蓄熱量>蓄熱余力判断値 …(2)
When the demand response response start time is before the peak cut time zone, the heat storage reserve determination unit determines the heat storage reserve by the following equation (1), and when it is after the peak cut time zone, the heat storage reserve is determined. The demand response response control device according to claim 1, wherein the determination is made by the following equation (2).
Heat storage amount in heat storage tank-Predicted heat consumption in peak cut operation> Heat storage capacity judgment value ... (1)
Heat storage amount in heat storage tank> Heat storage capacity judgment value ... (2)
前記蓄熱余力判断値は、前記デマンドレスポンス応答運転での消費熱量を確保できる熱量であることを特徴とする請求項2に記載のデマンドレスポンス応答制御装置。 The demand response response control device according to claim 2, wherein the heat storage reserve determination value is a heat amount that can secure the heat consumption amount in the demand response response operation. 前記蓄熱余力判断部は、前記デマンドレスポンス応答運転の残り対応時間を下記(3)式で計算することを特徴とする請求項1に記載のデマンドレスポンス応答制御装置。
デマンドレスポンス応答運転の残り対応時間=蓄熱槽の蓄熱量/予測空調負荷 …(3)
The demand response response control device according to claim 1, wherein the heat storage reserve determination unit calculates the remaining response time of the demand response response operation by the following equation (3).
Demand response response Remaining response time for operation = heat storage amount in heat storage tank / predicted air conditioning load ... (3)
前記蓄熱余力判断部は、前記デマンドレスポンス応答運転の残り対応時間が前記デマンドレスポンス応答運転時間を満たすときは前記蓄熱余力が前記蓄熱槽にあると判断することを特徴とする請求項4に記載のデマンドレスポンス応答制御装置。 The fourth aspect of claim 4, wherein the heat storage reserve determination unit determines that the heat storage reserve is in the heat storage tank when the remaining response time of the demand response response operation satisfies the demand response response operation time. Demand response Response control device. 前記蓄熱余力判断部は、前記蓄熱槽の蓄熱量を前記蓄熱槽の水位または温度に基づいて求めることを特徴とする請求項2乃至請求項5に記載のデマンドレスポンス応答制御装置。 The demand response response control device according to claim 2 to 5, wherein the heat storage reserve determination unit obtains the amount of heat stored in the heat storage tank based on the water level or temperature of the heat storage tank. 前記デマンドレスポンス指令があったとき、デマンドレスポンス応答運転による消費熱量を前記ピークカット運転以前のデマンドレスポンス応答運転可能時間帯に予め蓄熱槽に蓄熱し、昼間の空調時間帯のデマンドレスポンス指令に対してデマンドレスポンス応答運転を行い、デマンドレスポンス指令が無いときは、終日蓄熱使い切り運転ができる予測運転により、残蓄の回避のための、放熱運転を行うことを特徴する請求項1乃至請求項6に記載のデマンドレスポンス応答制御装置。 When the demand response command is issued, the amount of heat consumed by the demand response response operation is stored in the heat storage tank in advance during the demand response response operation possible time zone before the peak cut operation, and the heat is stored in the heat storage tank in advance for the demand response command during the daytime air conditioning time zone. The invention according to claim 1 to 6, wherein the demand response response operation is performed, and when there is no demand response command, the heat dissipation operation is performed to avoid the residual storage by the predictive operation in which the heat storage can be used up all day. Demand response response control device.
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