JP7600650B2 - Power distribution automation system - Google Patents
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
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Description
本発明は、自動電圧調整装置を含む配電系統を監視、制御する配電自動化システムに関する。 The present invention relates to an automated power distribution system that monitors and controls a power distribution system including an automatic voltage regulator.
従来から、配電系統の監視や開閉器の制御などを行い、停電が発生すると配電系統上の停電エリアを特定したり、監視、制御の結果に基づいて、停電の発生や給電の復旧などの停電情報を生成したりする配電自動化システムが設置、運用されている。また、配電線の電圧を適正に維持するための自動電圧調整装置として、例えば、負荷時タップ切換変圧器装置（ＳＶＲ：Static Voltage Regulator）が配電線途中に配設されたり、段階制御式リアクトル装置（ＳＳＲ：Step Switched Reactor）が配電線の端末側に配設されたりしている（例えば、特許文献１参照。）。 Conventionally, distribution automation systems have been installed and operated to monitor distribution systems and control switches, identify the outage area on the distribution system when a power outage occurs, and generate outage information such as the occurrence of a power outage and the restoration of power supply based on the results of monitoring and control. In addition, as automatic voltage adjustment devices for maintaining the voltage of distribution lines at an appropriate level, for example, on-load tap changing transformer devices (SVR: Static Voltage Regulators) are installed midway through the distribution line, and step-switched reactor devices (SSR: Step Switched Reactors) are installed at the terminal side of the distribution line (for example, see Patent Document 1).
ところで、系統を切り替える際には、自動電圧調整装置などの機器が損傷して配電線事故に波及しないように、配電系統の状態などを考慮・注意（養生）する必要がある。例えば、開閉器を開閉することでＳＶＲや開閉器が損傷しないかを確認して開閉器を操作する必要があるが、このような確認は、従来、担当者・オペレータが行っていた。このため、担当者の経験不足や注意不足などによって確認・判断を誤るおそれがあり、その結果、機器が損傷して配電線事故に至るおそれがあった。 When switching systems, it is necessary to take into consideration and pay attention (protection) to the state of the distribution system, etc., to prevent damage to equipment such as automatic voltage regulators from spreading to distribution line accidents. For example, it is necessary to check whether opening and closing a switch will damage the SVR or switch before operating the switch, but traditionally, such checks were performed by a person in charge/operator. As a result, there was a risk that the person in charge would make an incorrect check or judgment due to a lack of experience or care, which could result in damage to equipment and lead to a distribution line accident.
そこで本発明は、開閉器の開閉によって機器が損傷するのを防止可能な配電自動化システムを提供することを目的とする。 The present invention aims to provide an automated power distribution system that can prevent equipment from being damaged by opening and closing switches.
上記課題を解決するために、請求項１の発明は、自動電圧調整装置の状態を含む配電系統状態を記憶する系統状態記憶装置と、配電系統内の機器を制御可能な監視制御装置と、を備え、前記監視制御装置から開閉器の開閉操作が入力された場合に、当該操作によって前記自動電圧調整装置またはその周辺機器が損傷するため操作不可とするか否かを前記配電系統状態に基づいて判定し、操作不可と判定した場合には警報を発するものであり、前記自動電圧調整装置である段階制御式リアクトル装置に投入量がある状態で、該段階制御式リアクトル装置の直近上流側の開閉器に対して前記監視制御装置から切操作が入力された場合には、操作不可と判定する、ことを特徴とする配電自動化システムである。 In order to solve the above problem, the invention of claim 1 is a distribution automation system comprising a system status memory device that stores the status of a distribution system including the status of an automatic voltage regulator, and a monitoring and control device that can control equipment in the distribution system, and when an opening and closing operation of a switch is input from the monitoring and control device, it determines based on the status of the distribution system whether the operation will damage the automatic voltage regulator or its peripheral equipment and therefore make it inoperable, and if it is determined that the operation is inoperable, it issues an alarm, and when there is an input amount in the step-controlled reactor device, which is the automatic voltage regulator, and when an opening operation is input from the monitoring and control device to the switch immediately upstream of the step-controlled reactor device, it determines that the operation is inoperable.
請求項２の発明は、自動電圧調整装置の状態を含む配電系統状態を記憶する系統状態記憶装置と、配電系統内の機器を制御可能な監視制御装置と、を備え、前記監視制御装置から開閉器の開閉操作が入力された場合に、当該操作によって前記自動電圧調整装置またはその周辺機器が損傷するため操作不可とするか否かを前記配電系統状態に基づいて判定し、操作不可と判定した場合には警報を発するものであり、前記自動電圧調整装置である負荷時タップ切換変圧器装置によって負荷側が昇圧または降圧されている状態で、前記監視制御装置から開閉器の入操作が入力されて、該入操作によって前記負荷時タップ切換変圧器装置を含む閉回路が形成される場合には、操作不可と判定する、ことを特徴とする配電自動化システムである。 The invention of claim 2 is a distribution automation system comprising a system status memory device that stores the status of a distribution system including the status of an automatic voltage regulator, and a monitoring and control device that can control equipment in the distribution system, and when an opening and closing operation of a switch is input from the monitoring and control device, it determines based on the status of the distribution system whether the operation will damage the automatic voltage regulator or its peripheral equipment and therefore is inoperable, and if it is determined that the operation is inoperable, an alarm is issued.When the load side is being boosted or lowered by the on-load tap changing transformer device, which is the automatic voltage regulator, an on-load tap changing transformer device is input to turn on the switch, and the on-load tap changing transformer device is used as the automatic voltage regulator, it is determined that the operation is inoperable.
請求項１に記載の発明によれば、監視制御装置から開閉器の開閉操作が入力された場合に、この操作によって自動電圧調整装置やその周辺機器が損傷するおそれがあるため操作不可か否かが自動判定され、操作不可と判定した場合には警報が発せられる。このため、開閉器の開閉によって機器が損傷するのを防止することが可能となり、さらには、配電線事故を防止して電力供給の信頼度、安定性を向上させることが可能となる。しかも、操作不可か否かが本配電自動化システムで自動的に判定されるため、担当者・オペレータの経験や注意力などによらず適正に判定することが可能であるとともに、判定・確認に要する時間と労力を削減することができる。 According to the invention described in claim 1, when a switch opening/closing operation is input from the monitoring control device, it is automatically determined whether or not the operation is impossible because there is a risk of damage to the automatic voltage regulator and its peripheral devices due to this operation, and an alarm is issued if it is determined that the operation is impossible. This makes it possible to prevent damage to equipment due to the opening and closing of the switch, and further makes it possible to prevent distribution line accidents and improve the reliability and stability of the power supply. Moreover, because the distribution automation system automatically determines whether or not the operation is impossible, it is possible to make an appropriate determination regardless of the experience or attention of the person in charge or operator, and it is also possible to reduce the time and effort required for the determination and confirmation.
請求項２に記載の発明によれば、段階制御式リアクトル装置に投入量がある状態で、この段階制御式リアクトル装置の直近上流側（手前）の開閉器に対して切操作が入力された場合には、操作不可と判定され警報が発せられる。すなわち、このような開閉器の切操作が実行されると、当該開閉器が破損するため、操作不可と判定して警報を発することで、当該開閉器の損傷さらには配電線事故を防止することが可能となる。 According to the invention described in claim 2, when there is an input amount in the step-controlled reactor device and a switch immediately upstream (before) the step-controlled reactor device is turned off, it is determined that the switch is inoperable and an alarm is issued. In other words, when such a switch is turned off, the switch will be damaged, so by determining that the switch is inoperable and issuing an alarm, it is possible to prevent damage to the switch and even a distribution line accident.
請求項３に記載の発明によれば、負荷時タップ切換変圧器装置によって負荷側が昇圧または降圧されている状態で、この負荷時タップ切換変圧器装置を含む閉回路が形成される開閉器入操作が入力された場合には、操作不可と判定され警報が発せられる。すなわち、このような閉回路が形成されると、負荷時タップ切換変圧器装置が焼損するため、操作不可と判定して警報を発することで、負荷時タップ切換変圧器装置の損傷さらには配電線事故を防止することが可能となる。 According to the invention described in claim 3, when the load side is stepped up or down by the on-load tap changing transformer device and a switch-on operation is input to form a closed circuit including the on-load tap changing transformer device, it is determined that the operation is impossible and an alarm is issued. In other words, if such a closed circuit is formed, the on-load tap changing transformer device will burn out, so by determining that the operation is impossible and issuing an alarm, it is possible to prevent damage to the on-load tap changing transformer device and even distribution line accidents.
以下、この発明を図示の実施の形態に基づいて説明する。 The present invention will be described below based on the illustrated embodiment.
図１～図６は、この発明の実施の形態を示し、図１は、この実施の形態に係る配電自動化システム１を示す概略構成図である。この配電自動化システム１は、自動電圧調整装置を含む配電系統を監視、制御するシステムであり、後述するようにして操作・制御の可否を自動判定する点を除いて従来と同等の構成であり、従来と同等の構成については詳述を省略するが、概略次のような構成となっている。 Figures 1 to 6 show an embodiment of the present invention, and Figure 1 is a schematic diagram showing a power distribution automation system 1 according to this embodiment. This power distribution automation system 1 is a system that monitors and controls a power distribution system including an automatic voltage regulator, and has the same configuration as the conventional system except that it automatically determines whether or not operation and control are possible, as described below. A detailed description of the conventional configuration will be omitted, but the system is roughly configured as follows.
すなわち、配電自動化サーバ２と遠制親局（配電遠制装置）３とが通信自在に接続され、配電自動化サーバ２と監視制御卓（監視制御装置）４とが通信自在に接続されている。また、各電柱に取り付けられた遠制子局（図示せず）が遠制親局３と通信自在に接続され、遠制子局を介して電柱上の開閉器（遠制開閉器）４１が開閉制御されるようになっている。 That is, the power distribution automation server 2 and the remote control master station (power distribution remote control device) 3 are connected so that they can communicate with each other, and the power distribution automation server 2 and the monitoring and control console (monitoring and control device) 4 are connected so that they can communicate with each other. In addition, the remote control slave stations (not shown) attached to each utility pole are connected so that they can communicate with the remote control master station 3, and the switches (remote control switches) 41 on the utility poles are opened and closed and controlled via the remote control slave stations.
そして、配電線Ｌの運用状態（配電系統状態）を常時監視し、例えば、配電線事故による停電が発生すると、開閉器４１等を制御しながら停電を引き起こした事故箇所を特定し、監視制御卓４からの操作や自動によって事故区間以外の配電線Ｌへの配電（自動逆送）を行う。このようにして、開閉器４１等の開閉によって停電エリアが確定され、開閉器４１等を境にして停電エリアと非停電エリアとが分かれることになる。また、変電所事故（特高事故、瞬時電圧低下など）による停電が発生すると、監視制御卓４からの操作や自動によって、停電が発生した地域に対して周辺の配電線Ｌからの配電（自動逆送）を行ったりするものである。 The system constantly monitors the operational status (distribution system status) of the distribution line L, and when a power outage occurs due to a distribution line accident, for example, the location of the accident that caused the power outage is identified while controlling the switches 41, etc., and power is distributed (automatic reverse transmission) to distribution lines L other than the accident section by operation from the monitoring control desk 4 or automatically. In this way, the power outage area is determined by opening and closing the switches 41, etc., and the power outage area and non-powered area are separated by the switches 41, etc. In addition, when a power outage occurs due to a substation accident (high voltage accident, momentary voltage drop, etc.), power is distributed (automatic reverse transmission) from the surrounding distribution lines L to the area where the power outage occurred by operation from the monitoring control desk 4 or automatically.
ここで、運転制御センターＣに配電自動化サーバ２が設置され、各営業所などに遠制親局３や監視制御卓４が設置されるが、この実施の形態では、運転制御センターＣに配電自動化サーバ２、遠制親局３および監視制御卓４が設置されているものとする。また、配電線Ｌには、複数の負荷がぶら下がるように配設されているとともに、開閉器４１を介して太陽光発電装置（分散型電源）４２が配設され、さらに、配電線Ｌの電圧を適正に維持・調整するための自動電圧調整装置として、ＳＳＲ（段階制御式リアクトル装置）５１とＳＶＲ（負荷時タップ切換変圧器装）５２とが配設されている。具体的に、この実施の形態では、太陽光発電装置４２の上位・上流側にＳＶＲ５２が配設され、太陽光発電装置４２の下位・下流側にＳＳＲ５１が配設されている。 Here, the power distribution automation server 2 is installed in the operation control center C, and the remote control main station 3 and the monitoring control console 4 are installed in each sales office, etc., but in this embodiment, the power distribution automation server 2, the remote control main station 3, and the monitoring control console 4 are installed in the operation control center C. In addition, a plurality of loads are arranged to hang from the power distribution line L, and a photovoltaic power generation device (distributed power source) 42 is arranged via a switch 41. Furthermore, an SSR (step-controlled reactor device) 51 and an SVR (on-load tap changing transformer device) 52 are arranged as automatic voltage adjustment devices to properly maintain and adjust the voltage of the power distribution line L. Specifically, in this embodiment, the SVR 52 is arranged upstream of the photovoltaic power generation device 42, and the SSR 51 is arranged downstream of the photovoltaic power generation device 42.
次に、本配電自動化システム１の特徴的な構成、機能について説明する。 Next, we will explain the characteristic configuration and functions of this power distribution automation system 1.
まず、自動電圧調整装置の状態を含む配電系統状態を記憶する系統状態記憶装置（データベース）２１を運転制御センターＣに備える。すなわち、監視して得られた現状・最新の配電系統や各機器の状態などが配電系統図上に記された配電系統状態が、逐次リアルタイムに系統状態記憶装置２１に記憶されるようになっている。この系統状態記憶装置２１は、配電自動化サーバ２とアクセス自在に接続されている。 First, the operation control center C is provided with a system status storage device (database) 21 that stores the distribution system status, including the status of the automatic voltage regulator. In other words, the current and latest distribution system status and the status of each device obtained through monitoring are recorded on a distribution system diagram and stored sequentially in real time in the system status storage device 21. This system status storage device 21 is connected to the distribution automation server 2 so that it can be accessed freely.
監視制御卓４は、配電系統状態をモニタで監視可能で配電系統内の機器・設備を制御可能（操作命令を入力可能）な装置であり、少なくとも１台の監視制御卓４を備える。例えば、所定の開閉器４１の入操作または切操作を入力することで、当該開閉器４１を遠隔で開閉制御できるようになっている。 The monitoring and control console 4 is a device that can monitor the state of the power distribution system and control the devices and equipment in the power distribution system (can input operation commands), and at least one monitoring and control console 4 is provided. For example, by inputting an on or off operation of a specific switch 41, the switch 41 can be remotely controlled to be opened or closed.
これに対して、配電自動化サーバ２は、監視制御卓４から入力された操作の適否を判定する操作判定機能を備える。すなわち、監視制御卓４から開閉器４１の開閉（入切）操作が入力された場合に、当該操作によって自動電圧調整装置またはその周辺機器が損傷するため操作不可とするか否かを、系統状態記憶装置２１の配電系統状態に基づいて判定し、操作不可と判定した場合には警報を発する。 In response to this, the power distribution automation server 2 has an operation judgment function that judges whether the operation input from the monitoring control console 4 is appropriate. That is, when an operation to open/close (on/off) the switch 41 is input from the monitoring control console 4, the server judges whether the operation is to be made inoperable based on the power distribution system status of the system status storage device 21 because the operation may damage the automatic voltage regulator or its peripheral devices, and issues an alarm if it is judged that the operation is inoperable.
具体的には、第１に、ＳＳＲ５１に投入量がある状態で、このＳＳＲ５１の直近上流側の開閉器４１に対して監視制御卓４から切（開）操作が入力された場合には、操作不可と判定する。すなわち、図２に示すように、ＳＳＲ５１が「自動」または「手動、投入量≠０」の状態で、配電線Ｌ上でＳＳＲ５１の直近上流側（すぐ手前側）に設置されている開閉器４１－１に対する切操作は、操作不可と判定し、この操作を実行しないで監視制御卓４などに警報を発する。 Specifically, first, when there is a charge in the SSR51 and a switch 41 immediately upstream of the SSR51 is switched on from the monitoring control console 4, it is determined that the operation is not possible. In other words, as shown in FIG. 2, when the SSR51 is in the "automatic" or "manual, charge amount ≠ 0" state, it is determined that a switch 41-1 installed immediately upstream of the SSR51 on the distribution line L (just in front of the SSR51) is switched off and an alarm is issued to the monitoring control console 4 etc. without executing the operation.
なぜなら、ＳＳＲ５１に投入量がある状態とは、リアクトル分で配電線Ｌに無効電力を発生させて電圧を調整している状態であり、このような状態で開閉器４１－１を切ると、ＳＳＲ５１の無効電力による遅れ電流を遮断することになり、開閉器４１－１に異常電圧が発生する。つまり、電流裁断現象が生じ、異常電圧によって開閉器４１－１が破損・損傷し、さらには、配電線事故が発生して対象の配電線Ｌが停電してしまうからである。 The reason is that when there is an input to SSR51, the reactor generates reactive power in the distribution line L to adjust the voltage, and turning off switch 41-1 in this state cuts off the delayed current caused by the reactive power of SSR51, generating an abnormal voltage in switch 41-1. In other words, a current chopping phenomenon occurs, and the abnormal voltage causes switch 41-1 to break or be damaged, and even worse, a distribution line accident occurs, causing a power outage in the target distribution line L.
ここで、警報は、どのような警報であってもよいが、監視制御卓４などのモニタに注意メッセージを表示したり、監視制御卓４などのスピーカからアラーム音を発生させたりする。また、図２中の開閉器４１－２は、ＳＳＲ５１を配電線Ｌに接続・切離するためにＳＳＲ５１と一体的に配電線Ｌに配設された（ぶら下がって配設された）開閉器であり、配電線Ｌ上でのＳＳＲ５１の直近上流側の開閉器ではない。 The alarm may be any type of alarm, but may be a warning message displayed on a monitor such as the monitoring and control console 4, or an alarm sound generated from a speaker such as the monitoring and control console 4. Also, the switch 41-2 in FIG. 2 is a switch that is disposed (suspended) integrally with the SSR 51 on the distribution line L in order to connect and disconnect the SSR 51 to the distribution line L, and is not a switch located immediately upstream of the SSR 51 on the distribution line L.
第２に、ＳＶＲ５２によって負荷側が昇圧または降圧されている状態で、監視制御卓４から開閉器４１の入（閉）操作が入力されて、この入操作によってＳＶＲ５２を含む閉回路が形成される場合には、操作不可と判定する。すなわち、図３に示すように、ＳＶＲ５２によって負荷側が昇圧または降圧されている状態で（ＳＶＲ５２が自動モード状態で）、開閉器４１－１３等が入れられることでＳＶＲ５２を含む閉回路が形成される場合には、開閉器４１－１３等の入操作を操作不可と判定し、この操作を実行しないで監視制御卓４などに警報を発する。 Secondly, when the load side is being stepped up or down by the SVR52, an on (close) operation of the switch 41 is input from the monitoring control console 4, and this on operation forms a closed circuit including the SVR52, it is determined that the operation is not possible. In other words, as shown in FIG. 3, when the load side is being stepped up or down by the SVR52 (SVR52 is in automatic mode), if a closed circuit including the SVR52 is formed by closing the switch 41-13, etc., the on operation of the switch 41-13, etc. is determined to be inoperable, and this operation is not executed, and an alarm is issued to the monitoring control console 4, etc.
なぜなら、ＳＶＲ５２によって負荷側が昇圧または降圧され、例えば、開閉器４１－１１、４１－１２が入状態で開閉器４１－１３が入れられると、ＳＶＲ５２の両端（１次―２次間）に電圧が誘起される。そして、誘起された電圧がＳＶＲ５２を含む閉回路にかかることで（閉回路のインピーダンスが小さいため）、大電流Ｉが流れる。これにより、ＳＶＲ５２が焼損・損傷し、さらには、配電線事故が発生して対象の配電線Ｌが停電してしまうからである。 This is because the load side voltage is increased or decreased by the SVR52. For example, when the switches 41-11 and 41-12 are in the on state and the switch 41-13 is closed, a voltage is induced across both ends of the SVR52 (between the primary and secondary). The induced voltage is then applied to the closed circuit including the SVR52 (because the impedance of the closed circuit is small), causing a large current I to flow. This can cause the SVR52 to burn out or become damaged, and even cause a power distribution line accident, resulting in a power outage for the target power distribution line L.
従って、このような判定・チェックは、入操作されることでＳＶＲ５２を含む閉回路が形成され得る、すべての開閉器４１に対して行われる。例えば、図４に示すように、３台吊りの場合、入操作されることでＳＶＲ５２を含む閉回路が形成され得る、３台の開閉器４１がチェック範囲・対象となる。この場合、開閉器４１－１１、ＳＶＲ５２、開閉器４１－１２、開閉器４１－１３の１つの閉回路が形成され得、この閉回路が形成されるかを判定する。 Therefore, such a judgment/check is performed for all switches 41 that can form a closed circuit including the SVR 52 when turned on. For example, as shown in FIG. 4, in the case of a three-unit suspension, the check range/targets are three switches 41 that can form a closed circuit including the SVR 52 when turned on. In this case, one closed circuit can be formed by switches 41-11, SVR 52, switch 41-12, and switch 41-13, and it is judged whether this closed circuit is formed.
また、図５に示すように、４台吊りの場合、入操作されることでＳＶＲ５２を含む閉回路が形成され得る、４台の開閉器４１がチェック範囲・対象となる。この場合、開閉器４１－１１、ＳＶＲ５２、開閉器４１－１３の閉回路と、開閉器４１－１２、開閉器４１－１４、ＳＶＲ５２の閉回路の、２つの閉回路が形成され得、これらの閉回路が形成されるかを判定する。 As shown in Figure 5, in the case of a four-unit suspension, the check range and target are four switches 41 that can form a closed circuit including the SVR 52 when turned on. In this case, two closed circuits can be formed: a closed circuit of switch 41-11, SVR 52, and switch 41-13, and a closed circuit of switch 41-12, switch 41-14, and SVR 52, and it is determined whether these closed circuits are formed.
同様に、図６に示すように、５台吊りの場合、入操作されることでＳＶＲ５２を含む閉回路が形成され得る、５台の開閉器４１がチェック範囲・対象となる。この場合、開閉器４１－１１、ＳＶＲ５２、開閉器４１－１３の閉回路と、開閉器４１－１２、開閉器４１－１４、ＳＶＲ５２の閉回路と、開閉器４１－１１、ＳＶＲ５２、開閉器４１－１２、開閉器４１－１５の閉回路の、３つの閉回路が形成され得、これらの閉回路が形成されるかを判定する。 Similarly, as shown in Figure 6, in the case of a five-unit suspension, the check range and target are five switches 41 that can form a closed circuit including SVR 52 when turned on. In this case, three closed circuits can be formed: a closed circuit of switch 41-11, SVR 52, and switch 41-13; a closed circuit of switch 41-12, switch 41-14, and SVR 52; and a closed circuit of switch 41-11, SVR 52, switch 41-12, and switch 41-15. It is determined whether these closed circuits are formed.
このような構成の配電自動化システム１によれば、監視制御卓４から開閉器４１の開閉操作が入力された場合に、この操作によって自動電圧調整装置やその周辺機器が損傷するおそれがあるため操作不可か否かが自動判定される。そして、操作不可と判定した場合には、操作が実行されずに（開閉器４１が開閉されずに）監視制御卓４などに警報が発せられる。このため、開閉器４１の開閉によって機器が損傷するのを防止することが可能となり、さらには、配電線事故を防止して電力供給の信頼度、安定性を向上させることが可能となる。しかも、操作不可か否かが本配電自動化システム１で自動的に判定されるため、担当者・オペレータの経験や注意力などによらず適正に判定することが可能であるとともに、判定・確認に要する時間と労力を削減することができる。 According to the distribution automation system 1 configured as above, when an operation to open or close the switch 41 is input from the monitoring and control console 4, it is automatically determined whether or not the operation is impossible because there is a risk of damage to the automatic voltage regulator and its peripheral devices due to this operation. If it is determined that the operation is impossible, the operation is not performed (the switch 41 is not opened or closed) and an alarm is issued to the monitoring and control console 4, etc. This makes it possible to prevent damage to equipment due to the opening and closing of the switch 41, and further makes it possible to prevent distribution line accidents and improve the reliability and stability of the power supply. Moreover, because the distribution automation system 1 automatically determines whether or not the operation is impossible, it is possible to make an appropriate determination regardless of the experience or attention of the person in charge or operator, and it is also possible to reduce the time and effort required for the determination and confirmation.
具体的には、ＳＳＲ５１に投入量がある状態で、このＳＳＲ５１の直近上流側（手前）の開閉器４１に対して切操作が入力された場合には、操作不可と判定され警報が発せられる。すなわち、このような開閉器４１の切操作が実行されると、当該開閉器４１が破損するため、操作不可と判定して警報を発することで、当該開閉器４１の損傷さらには配電線事故を防止することが可能となる。 Specifically, if there is a charge in the SSR 51 and a switch 41 immediately upstream (before) the SSR 51 is turned off, it is determined that the switch is inoperable and an alarm is issued. In other words, when such a switch 41 is turned off, the switch 41 will be damaged, so by determining that the switch is inoperable and issuing an alarm, it is possible to prevent damage to the switch 41 and even a distribution line accident.
また、ＳＶＲ５２によって負荷側が昇圧または降圧されている状態で、このＳＶＲ５２を含む閉回路が形成される開閉器４１の入操作が入力された場合には、操作不可と判定され警報が発せられる。すなわち、このような閉回路が形成されると、ＳＶＲ５２が焼損するため、操作不可と判定して警報を発することで、ＳＶＲ５２の損傷さらには配電線事故を防止することが可能となる。 In addition, when the load side is being stepped up or down by the SVR 52, if an operation to turn on the switch 41 that forms a closed circuit including the SVR 52 is input, it is determined that the switch is inoperable and an alarm is issued. In other words, if such a closed circuit is formed, the SVR 52 will burn out, so by determining that the switch is inoperable and issuing an alarm, it is possible to prevent damage to the SVR 52 and even distribution line accidents.
以上、この発明の実施の形態について説明したが、具体的な構成は、上記の実施の形態に限られるものではなく、この発明の要旨を逸脱しない範囲の設計の変更等があっても、この発明に含まれる。例えば、上記の実施の形態では、配電自動化サーバ２に操作判定機能を備える場合について説明したが、監視制御卓４やその他の装置に操作判定機能を備えてもよい。また、監視制御卓４から特定の開閉器４１に対する入切操作のみが入力された場合について説明したが、監視制御卓４から一連の操作手順が入力された場合に、一連の操作手順のなかから上記のような機器損傷を招く操作があるか否かを判定し、ある場合には操作不可と判定して警報を発してもよい。 Although the embodiment of the present invention has been described above, the specific configuration is not limited to the above embodiment, and even if there are design changes within the scope of the present invention, the present invention is included. For example, in the above embodiment, the case where the power distribution automation server 2 is provided with an operation determination function has been described, but the monitoring control console 4 or other devices may also be provided with an operation determination function. Also, the case where only the on/off operation of a specific switch 41 is input from the monitoring control console 4 has been described, but when a series of operation procedures are input from the monitoring control console 4, it may be determined whether or not there is an operation that would cause equipment damage as described above from among the series of operation procedures, and if there is, it may be determined that the operation is not possible and an alarm may be issued.
１ 配電自動化システム
２ 配電自動化サーバ
２１ 系統状態記憶装置
３ 遠制親局（配電遠制装置）
４ 監視制御卓（監視制御装置）
４１ 開閉器
５１ ＳＳＲ（段階制御式リアクトル装置、自動電圧調整装置）
５２ ＳＶＲ（負荷時タップ切換変圧器装、自動電圧調整装置）
1 Power distribution automation system 2 Power distribution automation server 21 System status storage device 3 Remote control master station (power distribution remote control device)
4. Monitoring and control console (monitoring and control device)
41 Switchgear 51 SSR (Step-Controlled Reactor, Automatic Voltage Regulator)
52 SVR (on-load tap changing transformer, automatic voltage regulator)
Claims (2)
配電系統内の機器を制御可能な監視制御装置と、
を備え、前記監視制御装置から開閉器の開閉操作が入力された場合に、当該操作によって前記自動電圧調整装置またはその周辺機器が損傷するため操作不可とするか否かを前記配電系統状態に基づいて判定し、操作不可と判定した場合には警報を発するものであり、
前記自動電圧調整装置である段階制御式リアクトル装置に投入量がある状態で、該段階制御式リアクトル装置の直近上流側の開閉器に対して前記監視制御装置から切操作が入力された場合には、操作不可と判定する、
ことを特徴とする配電自動化システム。 a system state storage device that stores a power distribution system state including a state of an automatic voltage regulator;
A monitoring and control device capable of controlling devices in a power distribution system;
when an opening/closing operation of a switch is input from the monitoring control device, the automatic voltage regulator or its peripheral devices are damaged by the operation, and therefore it is determined whether the operation is impossible based on the state of the power distribution system, and an alarm is issued when it is determined that the operation is impossible,
When a switch on the upstream side of the step-controlled reactor, which is the automatic voltage regulator, is turned off from the monitoring control device while there is an input amount in the step-controlled reactor, the step-controlled reactor is determined to be inoperable.
A power distribution automation system comprising:
配電系統内の機器を制御可能な監視制御装置と、
を備え、前記監視制御装置から開閉器の開閉操作が入力された場合に、当該操作によって前記自動電圧調整装置またはその周辺機器が損傷するため操作不可とするか否かを前記配電系統状態に基づいて判定し、操作不可と判定した場合には警報を発するものであり、
前記自動電圧調整装置である負荷時タップ切換変圧器装置によって負荷側が昇圧または降圧されている状態で、前記監視制御装置から開閉器の入操作が入力されて、該入操作によって前記負荷時タップ切換変圧器装置を含む閉回路が形成される場合には、操作不可と判定する、
ことを特徴とする配電自動化システム。 a system state storage device that stores a power distribution system state including a state of an automatic voltage regulator;
A monitoring and control device capable of controlling devices in a power distribution system;
when an opening/closing operation of a switch is input from the monitoring control device, the automatic voltage regulator or its peripheral devices are damaged by the operation, and therefore it is determined whether the operation is impossible based on the state of the power distribution system, and an alarm is issued when it is determined that the operation is impossible ,
When the load side is stepped up or down by the on-load tap changing transformer device, which is the automatic voltage regulator, and a switch closing operation is input from the monitoring and control device, and a closed circuit including the on-load tap changing transformer device is formed by the on-load tap changing transformer device, the device is determined to be inoperable.
A power distribution automation system comprising:
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2014147202A (en) | 2013-01-29 | 2014-08-14 | Mitsubishi Electric Corp | Monitor controller |
| JP2014204579A (en) | 2013-04-05 | 2014-10-27 | 中国電力株式会社 | Control system of automatic voltage regulator and automatic voltage regulator |
| US20160041568A1 (en) | 2014-08-05 | 2016-02-11 | Cooper Technologies Company | Voltage regulator for a power distribution system and method of controlling same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2014147202A (en) | 2013-01-29 | 2014-08-14 | Mitsubishi Electric Corp | Monitor controller |
| JP2014204579A (en) | 2013-04-05 | 2014-10-27 | 中国電力株式会社 | Control system of automatic voltage regulator and automatic voltage regulator |
| US20160041568A1 (en) | 2014-08-05 | 2016-02-11 | Cooper Technologies Company | Voltage regulator for a power distribution system and method of controlling same |
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