JPS6334693B2 - - Google Patents
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- Publication number
- JPS6334693B2 JPS6334693B2 JP55014847A JP1484780A JPS6334693B2 JP S6334693 B2 JPS6334693 B2 JP S6334693B2 JP 55014847 A JP55014847 A JP 55014847A JP 1484780 A JP1484780 A JP 1484780A JP S6334693 B2 JPS6334693 B2 JP S6334693B2
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- Prior art keywords
- power
- output
- frequency
- detection means
- control
- Prior art date
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- Direct Current Feeding And Distribution (AREA)
Description
【発明の詳細な説明】
本発明は、交直連系々統の制御方式に係り、特
に、発電所の全出力あるいは出力の大部分を直流
送電によつて消費地に送電する場合の発電所と直
流送電系統の協調をとるのに好適な制御方式に関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control method for an AC/DC interconnection system, and is particularly applicable to a power plant in which the entire output or most of the output of the power plant is transmitted to a consumption area by direct current transmission. This invention relates to a control method suitable for coordinating DC power transmission systems.
発電所の全出力あるいは出力の大部分を直流送
電によつて送電する場合発電々力と直流送電々力
のバランスをとること、及び発電機の周波数を一
定に保つことが必要である。この様な要求に対し
て従来は、発電々力の制御はボイラ、タービン等
の制御により、周波数の制御はガバナによつて行
なつていた。また、直流送電系統は、発電所との
電力のバランスがとれる様に制御するわけである
が、そのために、発電々力設定値と等しい値を与
えて直流送電々力設定値とする他、電源側と受電
側の交流系統の周波数差をとり、その差が零にな
る方向に、即ち受電側の周波数の方が低い場合に
は直流送電々力を増加させ、逆の場合は減少させ
る様に直流送電々力を補正することにより電力の
バランスをとる制御が行われる。 When transmitting the entire output or most of the output of a power plant by direct current transmission, it is necessary to balance the generated power and the direct current transmitted power, and to keep the frequency of the generator constant. Conventionally, in response to such demands, power generation was controlled by controlling boilers, turbines, etc., and frequency was controlled by a governor. In addition, the DC power transmission system is controlled so that the power is balanced with the power generation plant, and for this purpose, in addition to giving a value equal to the power generation power setting value and setting it as the DC power transmission power setting value, Calculate the frequency difference between the AC systems on the power receiving side and the receiving side, and increase the DC power transmission power in the direction that the difference becomes zero, that is, if the frequency on the receiving side is lower, and decrease it in the opposite case. Control is performed to balance the power by correcting the DC power transmission power.
しかしながら、上記の様な制御方式をとると、
発電機ガバナと直流送電系統の制御が干渉し合う
恐れがある。また、電子力発電所の様にガバナの
動作を制限している発電所からの直流送電の場合
には、この様な制御方式は適用できない。 However, if the above control method is adopted,
There is a risk that the generator governor and DC transmission system control may interfere with each other. Furthermore, such a control method cannot be applied in the case of direct current power transmission from a power plant that restricts the operation of a governor, such as an electronic power plant.
本発明の目的は、発電所と直流送電系統の協調
をとり安定な送電を行うための制御方式を提供す
るところにある。 An object of the present invention is to provide a control method for coordinating a power plant and a DC power transmission system to perform stable power transmission.
本発明は、原子力や火力発電所等の応答速度が
高々30％／分であるのに対し、直流送電系統では
500％／秒以上の高速反応が可能である点に着目
してなされたもので、発電所の発電々力を優先的
に設定し、直流送電系統の送電々力をそれに追随
させることによつて、電力のバランスをとり、発
電機の周波数を安定化するもので、発電機のガバ
ナは必要としない。 The present invention realizes that while the response speed of nuclear power plants, thermal power plants, etc. is at most 30%/minute, in DC transmission systems,
It was developed with a focus on the ability to respond at a high speed of 500%/second or more, by prioritizing the power generated by the power plant and making the power transmitted by the DC transmission system follow it. , which balances the power and stabilizes the generator frequency, and does not require a generator governor.
基本的には、直流送電系統の送電々力設定値と
して、発電所の発電々力設定値と同じ値を与え、
発電機の周波数が規定値からずれた場合には、そ
の周波数偏差によつて送電々力設定値を補正する
ことにより、発電々力と送電々力のバランスを保
ち周波数を一定に保つように制御する。 Basically, the same value as the power generation power setting value of the power plant is given as the power transmission power setting value of the DC transmission system.
If the frequency of the generator deviates from the specified value, the power transmission power setting value is corrected according to the frequency deviation, thereby controlling the power generation power and power transmission power to maintain a balance and keep the frequency constant. do.
第１図に本発明の実施例と示す。 FIG. 1 shows an embodiment of the present invention.
図において、PSは発電所、Ｇはボイラ、ター
ビン、発電機等を含めた発電設備、PCは発電々
力を制御するための発電所制御装置、DSは直流
送電系統、Ｃは変換装置、DCは送電々力を制御
するための直流系統制御装置、Bs、Brはそれぞ
れ送電側、受電側の母線、ANは受電側交流系統
である。以上が、発明の適用対象となる交直連
系々統である。 In the diagram, PS is the power plant, G is the power generation equipment including boilers, turbines, generators, etc., PC is the power plant control device for controlling the generated power, DS is the DC transmission system, C is the converter, DC is a DC system control device for controlling power transmission, Bs and Br are bus bars on the power transmission side and power reception side, respectively, and AN is the AC system on the power reception side. The above are the AC/DC interconnection systems to which the invention is applied.
つぎに、発明の基本部分をなす構成要素につい
て説明する。 Next, the constituent elements forming the basic part of the invention will be explained.
S1は発電々力設定値を与えるための第１の設定
手段、S2は発電機周波数を設定するための第２の
設定手段、FD1は発電機の周波数を検出するため
の第１の周波数検出手段、DF1は発電機の周波数
設定値と周波数検出値の差を求めるための第１の
差検出手段、CO1は直流送電系統の送電々力設定
値を補正するための第１の補正手段であるが、こ
こではCO1，DF1としていずれも加算器を用いる
場合の実施例を示している。 S 1 is the first setting means for giving the power generation set value, S 2 is the second setting means for setting the generator frequency, and FD 1 is the first setting means for detecting the generator frequency. The frequency detection means, DF 1 is a first difference detection means for determining the difference between the frequency setting value of the generator and the frequency detection value, and CO 1 is the first difference detection means for correcting the power transmission power setting value of the DC transmission system. Regarding the correction means, here, an embodiment is shown in which adders are used as both CO 1 and DF 1 .
以上の基本部分による基本制御部の動作をつぎ
に説明する。なお、ここではあとで説明する第２
の補正手段CO2又はCO2及びCO3はいずれも挿入
されていないものとし、S1の出力が直接PC及び
CO1に加えられ、S2の出力は直接DF1に加えられ
るものとして説明する。 The operation of the basic control unit based on the basic parts described above will now be described. In addition, here we will explain the second
It is assumed that neither the correction means CO 2 or CO 2 and CO 3 is inserted, and the output of S 1 is directly connected to the PC and
The output of S2 will be described as being added directly to DF1 .
まず、発電機の周波数が設定値に等しい場合に
ついて見ると、DF1の出力は零であり、PCとDC
に同じ電力設定値が与えられ、制御装置の誤差が
無ければ、発電々力と送電々力は等しくなる。と
ころが、現実には、制御装置は誤差が存在する
し、制御系の応答速度に違いによる発電電力と送
電電力の違いも存在する。また発電所から直流送
電系統までの間の送電線による損失も存在するの
で、これだけでは電力のバランスは取れない。し
たがつて周波数が設定値からずれてくる訳である
が、その場合はFD1の出力とS2の出力の間に差が
生じ、DF1の出力が現われる。今、周波数が設定
値よりも上昇した場合を考えると、DF1の出力と
して＋の信号が現われ、これがCO1により送電々
力設定値に加算されるから、直流送電々力は増加
し、発電機の出力が増加するために周波数は低下
する。逆に、周波数が設定値よりも低下した場合
には、直流送電々力が減少し、周波数を上昇させ
る。このようにして、発電機の周波数は設定値に
等しい一定値に保たれ、安定な運転が行なわれ
る。先に述べた様に発電所の発電々力変更速度が
高々30％／分であるのに対して、直流送電系統の
応答速度は、500％／秒と３桁程も速いので、発
電々力設定値が変更され、発電々力が変化する場
合でも、周波数を一定に保つ直流送電系統の制御
は十分に追随でき発電々力と送電々力のバランス
が取れた安定な運転が可能となる。 First, if we look at the case where the generator frequency is equal to the set value, the output of DF 1 is zero, and the PC and DC
If the same power setting value is given to both and there is no error in the control device, the generated power and the transmitted power will be equal. However, in reality, there are errors in the control device, and there are also differences between the generated power and the transmitted power due to differences in the response speed of the control system. In addition, there is also loss due to the transmission lines between the power plant and the DC transmission system, so it is not possible to balance the power with this alone. Therefore, the frequency deviates from the set value, and in that case, a difference occurs between the output of FD 1 and the output of S 2 , and the output of DF 1 appears. Now, if we consider the case where the frequency rises above the set value, a + signal will appear as the output of DF 1 , and this will be added to the power transmission power set value by CO 1 , so the DC power transmission will increase and the power generation will decrease. As the power of the machine increases, the frequency decreases. Conversely, when the frequency drops below the set value, the DC power transmission power decreases and the frequency increases. In this way, the frequency of the generator is maintained at a constant value equal to the set value, resulting in stable operation. As mentioned earlier, the rate at which a power plant changes its output power is at most 30%/min, while the response speed of a DC transmission system is 500%/sec, which is three orders of magnitude faster. Even if the set value is changed and the generated power changes, the control of the DC power transmission system that keeps the frequency constant will be able to sufficiently follow the changes, allowing stable operation with a good balance between the generated power and the transmitted power.
以上の様に本発明によると、発電所のガバナを
用いることなく、発電所の全電力あるいは大部分
の電力を直流送電により送電する交直連系々統の
安定な運転を実現することができる。 As described above, according to the present invention, it is possible to realize stable operation of an AC/DC interconnection system that transmits all or most of the power of a power plant by direct current transmission without using a power plant governor.
以上、本発明の基本部分について説明したが、
本発明では負荷側からの要求に応じた制御をも行
うことができる。第１図によつてこの制御を説明
する。同図中でFD2は受電側即ち負荷側の周波数
を検出するための第２の周波数検出手段、S3は受
電側交流系統の周波数設定値を与えるための第３
の設定手段、DF2は、FD2出力とS3出力の差を検
出するための第２の差検出手段、NLは、DF2の
出力が規定値以上となつた場合にのみ出力を発生
する非線形変換手段、CO2，CO2′は、NLの出力
によつて、発電々力設定値を補正するための第２
の補正手段、ＬはNL出力の最大振幅を抑えるた
めのリミツタ、CO3は、発電機周波数設定値をＬ
の出力によつて補正するための第３の補正手段で
ある。 The basic parts of the present invention have been explained above, but
According to the present invention, control can also be performed in response to requests from the load side. This control will be explained with reference to FIG. In the figure, FD 2 is a second frequency detection means for detecting the frequency on the power receiving side, that is, the load side, and S 3 is a third frequency detection means for giving the frequency setting value of the AC system on the power receiving side.
DF 2 is a second difference detection means for detecting the difference between the FD 2 output and S 3 output, and NL generates an output only when the DF 2 output exceeds a specified value. The non-linear conversion means, CO 2 , CO 2 ′, is a second converter for correcting the power generation set value according to the output of NL.
correction means, L is a limiter to suppress the maximum amplitude of the NL output, and CO 3 is a limiter for suppressing the maximum amplitude of the NL output.
This is a third correction means for correcting based on the output of.
CO2とCO2′はいずれか一方のみを使用するが、
ここでは先ずCO2を使用する場合の動作を説明す
る。またCO3を除き、S2の出力が直接DF1に加え
られるものとして負荷側の要求に応じた制御の基
本部分を説明する。 Only one of CO 2 and CO 2 ′ is used,
Here, we will first explain the operation when using CO 2 . In addition, the basic part of control in response to requests from the load side will be explained assuming that the output of S 2 is directly added to DF 1 , excluding CO 3 .
いま、受電側の交流系統で事故が発生し、電力
不足となつて、周波数が低下すると、DF2に＋の
出力が現われる。これが規定値以上になると、
NLに出力が表われ、それが発電々力設定値に加
算されてPCに与えられる。即ち、受電側交流系
統の周波数が規定値以上に低下すると、それに応
じて発電々力が増加して来る。そうすると、発電
機の周波数が増加しようとするので、それに応じ
て、先に説明したFD1，DF1，CO1が働き、周波
数を一定に保ちつつ直流送電々力を増加させる。 Now, if an accident occurs in the AC system on the receiving side, resulting in a power shortage and the frequency drops, a positive output will appear on DF 2 . If this exceeds the specified value,
The output appears on NL, which is added to the power generation set value and given to the PC. That is, when the frequency of the power-receiving side AC system decreases beyond a specified value, the power generated increases accordingly. Then, the frequency of the generator tends to increase, and accordingly, FD 1 , DF 1 , and CO 1 explained earlier act to increase the DC power transmission power while keeping the frequency constant.
この様に、本発明によると、負荷側の状態に対
応した制御が安定に行われる。第２の補正手段と
してCO2の代りにCO2′を用いても、同様な性能を
得ることができる。 As described above, according to the present invention, control corresponding to the state of the load side is stably performed. Similar performance can be obtained by using CO 2 ' instead of CO 2 as the second correction means.
以上の発明では発電機の周波数を常に一定に保
つ様に制御している。これは、発電所の出力変更
の速度が遅いために急速な制御はできないので、
この出力変更速度に応じた制御を行おうとするも
のである。しかしながら、緊急時の制御を考える
と、発電機及びタービンの回転エネルギーとして
蓄えられたエネルギーを放出することによつて、
短時間ではあるが、送電々力を急速に増加させる
ことができれば、発電側交流系統の過度安定上向
上に資するところが大きい。Ｌ及びCO3はこの様
な機能を持たせるための追加回路である。NLに
＋の信号が現われると、それがリミツタＬを介し
てCO3に加わり、周波数の設定値を低下させる。
そうすると、DF1に＋の出力が現われ直流送電系
統の送電々力設定値を増加させる。このとき、発
電出力と送電出力が一時的にアンバランスにな
り、発電機の周波数は低下してくるが、FD1出力
がCO3の出力に等しくなるまでは、回転エネルギ
ーとして蓄えられたエネルギーを放出しつつ送
電々力の増加を維持することができる。なお、リ
ミツタＬは、周波数設定値の変更幅を規定値以下
に抑えるために設ける。これは、発電所機器に
は、安全に運転できる周波数の範囲が定められて
いるためである。 In the invention described above, the frequency of the generator is controlled to always be kept constant. This is because rapid control is not possible due to the slow speed of power plant output changes.
The purpose is to perform control according to this output change speed. However, considering emergency control, by releasing the energy stored as rotational energy of the generator and turbine,
If the transmission power can be rapidly increased, albeit for a short period of time, it will greatly contribute to improving the transient stability of the power generation AC system. L and CO 3 are additional circuits to provide such functions. When a positive signal appears on NL, it is applied to CO 3 via limiter L, lowering the set value of the frequency.
Then, a positive output appears on DF 1 , increasing the power setting value of the DC transmission system. At this time, the power generation output and the power transmission output become temporarily unbalanced, and the frequency of the generator decreases, but until the FD 1 output becomes equal to the CO 3 output, the energy stored as rotational energy is not used. It is possible to maintain an increase in power transmission while releasing electricity. Note that the limiter L is provided to suppress the range of change in the frequency setting value to a specified value or less. This is because power plant equipment has a defined frequency range within which it can operate safely.
以上の説明は、受電側交流系統の周波数が低下
した場合について行つたが、周波数が上昇した場
合も逆の動きにより、受電側交流系統の変動に応
じた制御が可能である。 The above explanation has been made regarding the case where the frequency of the power receiving side AC system decreases, but even when the frequency increases, control according to fluctuations in the power receiving side AC system is possible by performing the opposite operation.
第２図は受電側交流系統の変動に対応する制御
の他の実施例を示す。図中に第１図と同じ記号を
示すものは、第１図で説明したものと同じものを
示す。第２図では、FD1とFD2の出力の差を求め
るための差検出手段DF3を用いているところが異
なる。この場合も、例えば受電側交流系統の周波
数が低下すると、DF3に＋の出力が現われるの
で、第１図の場合と同様に、発電々力及び送電々
力を増加させることができる。 FIG. 2 shows another embodiment of control that responds to fluctuations in the AC system on the power receiving side. In the figures, the same symbols as in FIG. 1 indicate the same things as explained in FIG. 1. The difference in FIG. 2 is that a difference detection means DF 3 is used to determine the difference between the outputs of FD 1 and FD 2 . In this case as well, for example, when the frequency of the AC system on the power receiving side decreases, a positive output appears on DF 3 , so that the power generation and power transmission can be increased as in the case of FIG. 1.
第３図は本発明の他の実施例を示す。同図で、
第１図と同じ記号を示すものは、第１図と同じも
のを示す。第３図中で、LLは発電所構内あるい
は近辺にある負荷、LDはその負荷の電力を測定
するための手段、SUは送電々力設定値から負荷
LLの電力値即ちLD出力を差引くための減算手段
であり、このSU出力をCO1に加える。実際の系
統ではこのように負荷が存在するのが普通である
から、第３図によると、この負荷による電力消費
分を考慮に入れたより精度の高い制御が可能とな
る。第１図や第２図の実施例では、このような負
荷による発電々力と送電々力の差は、発電機の周
波数を一定に保つ制御ループによつて、送電々力
を変更することによつて対処しているわけである
が、第３図のように予め負荷の分を考慮した制御
を行えばより高精度の制御が可能となる。なお、
第３図では、負荷電力の測定値を用いてS1の出力
を補正してCO1に加える例を示したが、実際に負
荷電力を測定するのではなく、負荷の接続状況に
より負荷の電力を見積つて、その値をSUに加え
ても同様の効果が得られる。 FIG. 3 shows another embodiment of the invention. In the same figure,
The same symbols as in FIG. 1 indicate the same things as in FIG. In Figure 3, LL is a load located within or near the power plant, LD is a means for measuring the power of that load, and SU is a load based on the transmission power setting value.
This is a subtraction means for subtracting the power value of LL, that is, the LD output, and this SU output is added to CO1 . Since such a load normally exists in an actual system, according to FIG. 3, it is possible to perform more accurate control that takes into account the power consumption due to this load. In the embodiments shown in Figures 1 and 2, the difference between the generated power and the transmitted power due to the load can be resolved by changing the transmitted power by a control loop that keeps the frequency of the generator constant. However, if control is performed in consideration of the load in advance as shown in FIG. 3, more accurate control will be possible. In addition,
Figure 3 shows an example of correcting the output of S 1 using the measured value of load power and adding it to CO 1 , but instead of actually measuring the load power, the load power is calculated based on the load connection status. A similar effect can be obtained by estimating , and adding that value to SU.
以上に説明した様に本発明によれば、発電所と
直流送電系統の協調をとつた制御が可能となり、
更に、受電側の交流系統の状況に応じた制御も可
能となる。 As explained above, according to the present invention, it is possible to control the power plant and the DC transmission system in a coordinated manner.
Furthermore, control according to the status of the AC system on the power receiving side is also possible.
第１図は本発明の実施例を示すための図面、第
２図、第３図は本発明の変形例を示すための図面
である。
PS……発電所、PC……発電所制御装置、DS
……直流送電系統、AN……受電側交流系統、Ｃ
……変換装置、DC……直流系統制御装置、CO…
…補正手段、DF……差検出手段、FD……周波数
検出手段。
FIG. 1 is a drawing for showing an embodiment of the invention, and FIGS. 2 and 3 are drawings for showing modified examples of the invention. PS...Power plant, PC...Power plant control device, DS
...DC power transmission system, AN...Power receiving side AC system, C
...converter, DC...DC system control device, CO...
...correction means, DF...difference detection means, FD...frequency detection means.
Claims (1)
発電々力設定値に従つて発電々力を制御するため
の制御装置を備えた発電所、その発電所と消費地
を結び、与えられた送電々力設定値に従つて送
電々力を制御するための制御装置を備えた直流送
電系統により構成される発送電システムにおい
て、発電々力設定値を与えるための第１の設定手
段、発電機の周波数を検出するための第１の周波
数検出手段、発電機の周波数の設定値を与えるた
めの第２の設定手段、前記第１の周波数検出手段
と第２の設定手段の出力の差を求めるための第１
の差検出手段、第１の設定手段の出力を受け、そ
の値を第１の差検出手段の出力によつて補正する
第１の補正手段を備え、その第１の補正手段の出
力をもつて、直流送電系統の送電々力設定値とす
ることを特徴とする交直連系々統の制御方式。 ２ 直流送電系統の受電側の交流系統の周波数を
検出する第２の周波数検出手段、受電側交流系統
の周波数の設定値を与えるための第３の設定手
段、前記第２の周波数検出手段と第３の設定手段
の出力の差を求める第２の差検出手段、第１の設
定手段の出力を受け、その値を第２の差検出手段
の出力によつて補正する第２の補正手段を備え、
その第２の補正手段の出力をもつて、発電々力設
定値とすることを特徴とする特許請求範囲第１項
記載の交直連系々統の制御方式。 ３ 第２の差検出手段の出力を不感帯を有する第
１の非線形変換手段を介して、第２の補正手段に
加えることを特徴とする特許請求範囲第２項記載
の交直連系々統の制御方式。 ４ 直流送電系統の受電側の交流系統の周波数を
検出する第２の周波数検出手段、第１の周波数検
出手段と第２の周波数検出手段の差を求める第３
の差検出手段、第１の設定手段の出力を受け、そ
の値を第３の差検出手段の出力によつて補正する
第３の補正手段を備え、その第３の補正手段の出
力をもつて発電々力設定値とすることを特徴とす
る特許請求範囲第１項記載の交直連系々統の制御
方式。 ５ 第３の差検出手段の出力を不感帯を有する第
２の非線形変換手段を介して、第３の補正手段に
加えることを特徴とする特許請求範囲第４項記載
の交直連系々統の制御方式。 ６ 第２あるいは第３の差検出手段の出力によつ
て、第２の設定手段の出力を補正するための第３
の補正手段を備えることを特徴とする特許請求範
囲第２項〜第５項記載の交直連系々統の制御方
式。 ７ 発電所内及び周辺の負荷の量を測定あるいは
見積る手段、その手段の出力を第１の設定手段の
出力から減ずる減算手段を備え、その減算手段の
出力を第１の補正手段の入力として与えることを
特徴とする特許請求範囲第１項〜第６項記載の交
直連系々統の制御方式。[Claims] 1. A power plant equipped with one or more power generating equipment and a control device for controlling the generated power in accordance with a given set value of the generated power, and the power generating plant and the consumption area. In conclusion, in a power transmission system constituted by a DC power transmission system equipped with a control device for controlling the power transmission power according to a given power generation power set value, the first method for giving the power generation power set value is a setting means, a first frequency detection means for detecting the frequency of the generator, a second setting means for giving a set value of the frequency of the generator, the first frequency detection means and the second setting means; The first step to find the difference in output
a difference detection means, a first correction means for receiving the output of the first setting means and correcting the value by the output of the first difference detection means; , a control method for an AC/DC interconnection system, characterized in that the transmission power setting value of the DC power transmission system is set. 2. A second frequency detection means for detecting the frequency of the AC system on the power receiving side of the DC power transmission system, a third setting means for giving a set value of the frequency of the AC system on the power receiving side, the second frequency detection means and the third frequency detection means. a second difference detection means for determining the difference between the outputs of the third setting means, and a second correction means for receiving the output of the first setting means and correcting the value by the output of the second difference detection means. ,
2. A control system for an AC/DC interconnection system according to claim 1, wherein the output of the second correction means is used as a set value for power generation. 3. Control of an AC/DC interconnection system according to claim 2, characterized in that the output of the second difference detection means is applied to the second correction means via the first nonlinear conversion means having a dead zone. method. 4. A second frequency detection means for detecting the frequency of the AC system on the receiving side of the DC power transmission system, and a third frequency detection means for determining the difference between the first frequency detection means and the second frequency detection means.
and a third correction means for receiving the output of the first setting means and correcting the value by the output of the third difference detection means; 2. A control system for an AC/DC interconnection system according to claim 1, characterized in that the power generation power is set to a set value. 5. Control of an AC/DC interconnection system according to claim 4, characterized in that the output of the third difference detection means is applied to the third correction means via the second nonlinear conversion means having a dead zone. method. 6. A third difference detection means for correcting the output of the second setting means by the output of the second or third difference detection means.
A control system for an AC/DC interconnection system according to claims 2 to 5, characterized in that the control system comprises a correction means. 7. A means for measuring or estimating the amount of load in and around the power plant, and a subtraction means for subtracting the output of the means from the output of the first setting means, and providing the output of the subtraction means as an input to the first correction means. A control system for an AC/DC interconnection system according to claims 1 to 6, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1484780A JPS56112828A (en) | 1980-02-12 | 1980-02-12 | Accdc interlocking system control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1484780A JPS56112828A (en) | 1980-02-12 | 1980-02-12 | Accdc interlocking system control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56112828A JPS56112828A (en) | 1981-09-05 |
| JPS6334693B2 true JPS6334693B2 (en) | 1988-07-12 |
Family
ID=11872420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1484780A Granted JPS56112828A (en) | 1980-02-12 | 1980-02-12 | Accdc interlocking system control system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56112828A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0622071U (en) * | 1992-08-27 | 1994-03-22 | 株式会社筑水キャニコム | Side plate device of carrier |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56125930A (en) * | 1980-03-07 | 1981-10-02 | Tokyo Shibaura Electric Co | Dc transmission facility constant power control system |
| JPS57211937A (en) * | 1981-06-19 | 1982-12-25 | Tokyo Electric Power Co | Operation controller for dc transmission system |
| JPS5895988A (en) * | 1981-12-03 | 1983-06-07 | Tokyo Electric Power Co Inc:The | Control system for ac/dc converter |
| JPS58112475A (en) * | 1981-12-26 | 1983-07-04 | Tokyo Electric Power Co Inc:The | Starting system for ac/dc converter |
| JPS58159670A (en) * | 1982-03-16 | 1983-09-22 | Toshiba Corp | Frequency controlling method by power converter |
| JP2567383B2 (en) * | 1986-12-23 | 1996-12-25 | 株式会社日立製作所 | DC power transmission control device |
-
1980
- 1980-02-12 JP JP1484780A patent/JPS56112828A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0622071U (en) * | 1992-08-27 | 1994-03-22 | 株式会社筑水キャニコム | Side plate device of carrier |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56112828A (en) | 1981-09-05 |
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