JP5349377B2 - Power supply system control method and power supply system - Google Patents

Power supply system control method and power supply system Download PDF

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JP5349377B2
JP5349377B2 JP2010058041A JP2010058041A JP5349377B2 JP 5349377 B2 JP5349377 B2 JP 5349377B2 JP 2010058041 A JP2010058041 A JP 2010058041A JP 2010058041 A JP2010058041 A JP 2010058041A JP 5349377 B2 JP5349377 B2 JP 5349377B2
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distribution line
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generator
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JP2011193644A (en
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明宏 小川
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Chugoku Electric Power Co Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To stably maintain demand-supply balance of a power system. <P>SOLUTION: A communication device 20 provided for first and second low-voltage distribution lines 4 acquires, from a second communication device 20, a second supply-demand gap between the total output of generators 5 connected to the second low-voltage distribution line 4 and the total power consumption of a load 6 connected to the second low-voltage distribution line 4, calculates the adjusted power to be used to eliminate the supply-demand gap of the first low-voltage distribution line, on the basis of the supply-demand gap in the first low-voltage distribution line and the supply-demand gap of the second low-voltage distribution line, and transmits it to a measurement command device 10. A measurement command device 10 provided in the load 6 connected to the low-voltage distribution line 4 obtains a load control amount as the control amount of the load 6 connected to the low-voltage distribution line 4 connected to the device, on the basis of the supply-demand gap of the first low-voltage distribution line and the adjustment amount, and distributes the obtained load control amount to each of the loads 6 of the low-voltage distribution line 4 connected to the device, thereby controlling the power consumption of the loads 6. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

本発明は、電力供給システムの制御方法、及び電力供給システムに関し、とくに電力系統の需給バランスを安定して維持するための技術に関する。   The present invention relates to a control method for a power supply system and a power supply system, and more particularly to a technique for stably maintaining a supply and demand balance of a power system.

特許文献１には、マイクログリッド等における多数の発電機の需給制御方法として、各発電機が系統の周波数と自身の現在出力とを計測し、その計測値と通信回線を通じて取得した他の発電機の現在出力とに基づき地域要求量（ＡＲ）を求め、求めた地域要求量（ＡＲ）を所定の配分方法に従って各発電機に配分し、各発電機が自身の出力を計算することにより、電力系統の自律的な制御を行う構成が開示されている。   In Patent Document 1, as a supply and demand control method for a large number of generators in a microgrid or the like, each generator measures the frequency of the system and its current output, and other generators acquired through the measured values and communication lines. The local demand (AR) is calculated based on the current output of the power source, the calculated local demand (AR) is distributed to each generator according to a predetermined distribution method, and each generator calculates its own output, thereby generating power. A configuration for autonomously controlling the system is disclosed.

特開２００９−２７８８３４号公報JP 2009-278834 A

変電所に接続する高圧配電線と、高圧配電線に接続する複数の低圧配電線と、低圧配電線の夫々に接続する発電機と、低圧配電線の夫々に接続する負荷とを含む電力系統においては、低圧配電線に太陽光発電機のように出力変動の大きな発電機が接続している場合には、需給バランスを維持するために、出力調整が容易なコージェネレーション発電機（ディーゼル発電機、ガスタービン発電機、ガスエンジン発電機等）等を用意する必要がある。また太陽光発電機の出力変動によって高圧配電線側の電圧変動が生じ、高圧配電線側で需給調整しろを大きくとる必要がある。また系統事故等により太陽光発電機が一斉に解列した場合には、需給バランスが大きく崩れ、高圧配電線側の潮流に大きな影響が生じる。   In a power system including a high-voltage distribution line connected to a substation, a plurality of low-voltage distribution lines connected to the high-voltage distribution line, a generator connected to each of the low-voltage distribution lines, and a load connected to each of the low-voltage distribution lines When a generator with large output fluctuations, such as a solar generator, is connected to the low-voltage distribution line, a cogeneration generator (diesel generator, Gas turbine generator, gas engine generator, etc.) must be prepared. Moreover, the voltage fluctuation on the high voltage distribution line side is caused by the output fluctuation of the solar power generator, and it is necessary to make a large margin for supply and demand adjustment on the high voltage distribution line side. In addition, when solar power generators are disconnected all at once due to a system fault or the like, the supply-demand balance is greatly disrupted, and the power flow on the high-voltage distribution line side is greatly affected.

本発明はこのような背景に鑑みてなされたもので、電力系統の需給バランスを安定して維持することが可能な電力供給システムの制御方法、及び電力供給システムを提供することを目的とする。   This invention is made | formed in view of such a background, and it aims at providing the control method of the electric power supply system which can maintain the supply-and-demand balance of an electric power grid stably, and an electric power supply system.

上記目的を達成するための本発明の一つは、変電所に接続する高圧配電線と、前記高圧配電線に接続する複数の低圧配電線と、前記低圧配電線の夫々に接続する発電機と、前記低圧配電線の夫々に接続する負荷とを含む電力供給システムの制御方法であって、前記低圧配電線の夫々に、前記発電機の出力を計測する計測装置と、前記負荷の電力消費量を計測する計測指令装置と、前記計測装置及び前記計測指令装置と通信可能に接続する通信装置とを設け、前記通信装置同士を互いに通信可能に接続し、前記計測指令装置の夫々が、自身が接続している前記低圧配電線に接続している前記発電機の出力の合計と前記低圧配電線に接続している前記負荷の電力消費量の合計との差である自低圧配電線需給差を求め、前記通信装置の夫々が、自身が設けられている前記低圧配電線に設けられている前記計測指令装置から前記自低圧配電線需給差を取得し、他の前記低圧配電線に接続している前記発電機の出力の合計と他の前記低圧配電線に接続している前記負荷の電力消費量の合計との差である他低圧配電線需給差を他の前記通信装置から取得し、前記自低圧配電線需給差と前記他低圧配電線需給差とに基づき、前記自低圧配電線需給差を解消するのに用いる電力の調整量を求めて前記計測指令装置に通知し、前記計測指令装置の夫々が、前記自低圧配電線需給差と前記調整量とに基づき、自身が接続している前記低圧配電線に接続している前記負荷の制御量である負荷制御量を求め、求めた前記負荷制御量を所定の配分条件に従い、自身が接続している前記低圧配電線に接続している前記負荷の夫々に配分し、配分した負荷制御量に従い前記負荷の夫々の電力消費量を制御することとする。 One aspect of the present invention for achieving the above object is a high-voltage distribution line connected to a substation, a plurality of low-voltage distribution lines connected to the high-voltage distribution line, and a generator connected to each of the low-voltage distribution lines. , A control method of a power supply system including a load connected to each of the low-voltage distribution lines, a measuring device for measuring the output of the generator to each of the low-voltage distribution lines, and the power consumption of the load A measurement command device that measures the above and a communication device that is communicably connected to the measurement device and the measurement command device. The communication devices are connected to each other so that they can communicate with each other. A self-low voltage distribution line supply-demand difference that is a difference between the total output of the generator connected to the low voltage distribution line connected to the total power consumption of the load connected to the low voltage distribution line. required, each of the communication device, itself From the measurement instruction unit provided in the low-voltage distribution lines provided the acquired self low-voltage distribution line supply difference, the generator sum of the other output of which is connected to the other of the low-voltage distribution lines The other low-voltage distribution line supply / demand difference, which is a difference from the total power consumption of the load connected to the low-voltage distribution line, is acquired from the other communication device, and the own low-voltage distribution line supply / demand difference and the other low-voltage distribution line are Based on the power supply / demand difference, the adjustment command of power used to eliminate the self-low voltage distribution line supply / demand difference is obtained and notified to the measurement command device, and each of the measurement command devices is connected to the self-low voltage distribution wire supply / demand difference. And based on the adjustment amount, a load control amount that is a control amount of the load connected to the low-voltage distribution line to which it is connected is obtained, and the obtained load control amount is determined according to a predetermined distribution condition. Is connected to the low-voltage distribution line Serial allocated to each of the load, and controlling the power consumption of each of the load in accordance with load control amount allocated.

本発明によれば、高圧配電線に接続している低圧配電線間で電力を融通し合うことができる。このため、低圧配電線に、例えば太陽光発電機のように出力変動の大きな発電機が接続しているような場合でも、コージェネレーション発電機（ディーゼル発電機、ガスタービン発電機、ガスエンジン発電機等）等を用意することなく、出力変動を抑制することができる。また本発明によれば、低圧配電線側の出力変動の高圧配電線側への影響が軽減され、太陽光発電機などの発電機の出力変動分の需給調整しろが緩和される。また低圧配電線間で電力を融通し合うことにより、高圧配電線の潮流変動が抑制され、高圧配電線の電圧変動を抑制することができる。   ADVANTAGE OF THE INVENTION According to this invention, electric power can be interchanged between the low voltage | pressure distribution lines connected to the high voltage distribution line. For this reason, even when a generator with large output fluctuation is connected to the low-voltage distribution line, such as a solar power generator, a cogeneration generator (diesel generator, gas turbine generator, gas engine generator) Etc.) and the like, and so on, can be used to suppress output fluctuations. Further, according to the present invention, the influence of the output fluctuation on the low voltage distribution line side on the high voltage distribution line side is reduced, and the margin for adjusting the supply and demand for the output fluctuation of the generator such as a solar power generator is eased. Further, by interchanging electric power between the low-voltage distribution lines, fluctuations in the power flow of the high-voltage distribution lines are suppressed, and voltage fluctuations in the high-voltage distribution lines can be suppressed.

また本発明のうちの他の一つは、上記制御方法であって、前記発電機には太陽光発電機が含まれていることとする。   Another aspect of the present invention is the control method described above, wherein the generator includes a solar generator.

また本発明のうちの他の一つは、上記制御方法であって、前記発電機には太陽光発電機が含まれており、前記負荷には蓄電負荷、蓄熱負荷の少なくともいずれかが含まれており、前記太陽光発電機の出力を、前記蓄電負荷又は前記蓄熱負荷の少なくともいずれかで消費することとする。   Another aspect of the present invention is the above control method, wherein the generator includes a solar power generator, and the load includes at least one of a storage load and a heat storage load. The output of the solar power generator is consumed by at least one of the power storage load and the heat storage load.

太陽光発電機の出力を蓄電負荷、蓄熱負荷のいずれかで消費することで、太陽光発電機の出力変動の高圧配電線への波及を軽減することができる。また系統事故等により太陽光発電機が一斉に解列した場合には、一般に解列時には蓄電負荷又は蓄熱負荷は運転しないため、太陽光発電機が解列しても需給バランスに影響を与えることがない。   By consuming the output of the solar power generator by either the storage load or the heat storage load, it is possible to reduce the spread of the output fluctuation of the solar power generator to the high-voltage distribution line. In addition, when solar power generators are disconnected all at once due to a grid fault, etc., the storage load or heat storage load is generally not operated at the time of disconnection. There is no.

また本発明のうちの他の一つは、上記制御方法であって、前記計測指令装置の夫々は、他の前記計測指令装置から他の前記計測指令装置が計測している前記負荷の電力消費量の可変域を示す情報を受信し、前記他の前記計測指令装置が計測している前記負荷の電力消費量が当該負荷の前記可変域の範囲内になるように前記負荷制御量を前記負荷に配分することとする。   Another aspect of the present invention is the above-described control method, wherein each of the measurement command devices is configured to measure power consumption of the load measured by the other measurement command device from the other measurement command device. Receiving the information indicating the variable range of the amount, and setting the load control amount to the load so that the power consumption of the load measured by the other measurement command device falls within the range of the variable range of the load. Will be allocated.

本発明によれば、計測指令装置は、負荷の電力消費量が可変域の範囲内になるように、負荷制御量を負荷に配分するので、負荷の夫々の特性に応じて負荷制御量を配分することができ、自律的な需給制御を適切に行うことができる。   According to the present invention, since the measurement command device distributes the load control amount to the load so that the power consumption of the load falls within the range of the variable range, the load control amount is allocated according to each characteristic of the load. And autonomous supply and demand control can be appropriately performed.

また本発明のうちの他の一つは、上記制御方法であって、前記配分条件が、前記負荷制御量を前記負荷の夫々に均等に配分するという条件であることとする。 Another aspect of the present invention is the above-described control method, wherein the distribution condition is a condition that the load control amount is evenly distributed to each of the loads .

その他、本願が開示する課題、及びその解決方法は、発明を実施するための形態の欄、及び図面により明らかにされる。   In addition, the subject which this application discloses, and its solution method are clarified by the column of the form for inventing, and drawing.

本発明によれば、電力系統の需給バランスを安定して維持することができる。   According to the present invention, the supply and demand balance of the power system can be stably maintained.

電力供給システム１の概略的な構成を示す図である。1 is a diagram illustrating a schematic configuration of a power supply system 1. FIG. 計測指令装置１０を中心とした情報の流れを示す図である。FIG. 3 is a diagram illustrating a flow of information with a measurement command device 10 as a center. 計測装置８のハードウエア構成を示す図である。2 is a diagram illustrating a hardware configuration of a measuring device 8. FIG. 計測指令装置１０のハードウエア構成を示す図である。2 is a diagram illustrating a hardware configuration of a measurement command device 10. FIG. 制御装置１３のハードウエア構成を示す図である。2 is a diagram illustrating a hardware configuration of a control device 13. FIG. 計測指令装置１０の機能を示す図である。FIG. 3 is a diagram illustrating functions of a measurement command device 10. 計測値データベース４２１に格納されるデータのレコード構成である。It is a record configuration of data stored in the measurement value database 421. 計測指令装置１０が行う処理の概要を示す図である。It is a figure which shows the outline | summary of the process which the measurement instruction | command apparatus 10 performs. 指令値生成処理Ｓ７００を説明するフローチャートである。It is a flowchart explaining command value generation processing S700.

以下、実施形態につき図面を参照しつつ詳細に説明する。図１に実施形態として説明する電力供給システム１の概略的な構成を示している。同図に示すように、この電力供給システム１は、変電所２に接続される高圧配電線３、高圧配電線３に接続する（高圧配電線３から分岐する）複数の低圧配電線４、低圧配電線４に接続している発電機５（ＰＶ１，ＰＶ２，・・・）、低圧配電線４に接続している負荷６（Ｌ１，Ｌ２，・・・）、高圧配電線３と低圧配電線４との間に介在する、変圧器７（Ｔｒ１，Ｔｒ２，・・・）、発電機５に付設される計測装置８、負荷６に付設される計測指令装置１０、及び変圧器７に付設される通信装置２０を含んで構成されている。尚、以下の説明において、同じ変圧器７の配下（変圧器７の低圧配電線４側）に接続している発電機５及び負荷６を要素とする集合のことを低圧グループと称する。   Hereinafter, embodiments will be described in detail with reference to the drawings. FIG. 1 shows a schematic configuration of a power supply system 1 described as an embodiment. As shown in the figure, this power supply system 1 includes a high voltage distribution line 3 connected to a substation 2, a plurality of low voltage distribution lines 4 connected to the high voltage distribution line 3 (branched from the high voltage distribution line 3), a low voltage Generator 5 (PV1, PV2,...) Connected to distribution line 4, load 6 (L1, L2,...) Connected to low voltage distribution line 4, high voltage distribution line 3 and low voltage distribution line 4, a transformer 7 (Tr1, Tr2,...), A measuring device 8 attached to the generator 5, a measurement commanding device 10 attached to the load 6, and a transformer 7. The communication device 20 is configured. In the following description, a set including the generator 5 and the load 6 connected to the subordinate of the same transformer 7 (on the low voltage distribution line 4 side of the transformer 7) is referred to as a low voltage group.

同じ低圧グループに所属している計測装置８及び計測指令装置１０同士は、通信ネットワーク（以下、内部ネットワーク５０と称する。）を介して互いに通信可能に接続されている。また各変圧器７に付設される通信装置２０同士は、通信ネットワーク（以下、外部ネットワーク６０と称する。）を介して互いに通信可能に接続されている。さらに各通信装置２０は、夫々が付設されている変圧器７の配下の低圧グループの内部ネットワーク５０と通信可能に接続している。尚、内部ネットワーク５０及び外部ネットワーク６０は、例えばＬＡＮ、ＷＡＮ、インターネット、電力線通信（PLC（Power Line Communication））、専用線（電力系統制御用情報伝送システム（CDT：Cyclic Digital data Transmission equipment）、メタル線、光ファイバ等）等を用いて構成される。   The measurement devices 8 and the measurement command devices 10 belonging to the same low-pressure group are connected to each other via a communication network (hereinafter referred to as an internal network 50). The communication devices 20 attached to the transformers 7 are connected to each other so as to communicate with each other via a communication network (hereinafter referred to as an external network 60). Further, each communication device 20 is communicably connected to the internal network 50 of the low voltage group under the transformer 7 to which each communication device 20 is attached. The internal network 50 and the external network 60 are, for example, LAN, WAN, Internet, power line communication (PLC), dedicated line (CDT: Cyclic Digital data Transmission equipment), metal Wire, optical fiber, etc.).

発電機５は、例えば、コージェネレーション発電機（ディーゼル発電機、ガスタービン発電機、ガスエンジン発電機等）に比べて出力変動の大きな、自然エネルギーを利用した発電機（太陽光発電機、水力発電、風力発電機等）である。尚、以下の説明において、複数の発電機３のうち、注目している一の発電機３のことを自機と称し、自機以外の他の発電機３のことを他機と称する場合がある。   The generator 5 is, for example, a generator (solar generator, hydroelectric generator) that uses natural energy and has a large output fluctuation compared to a cogeneration generator (diesel generator, gas turbine generator, gas engine generator, etc.). Wind power generators, etc.). In the following description, among the plurality of generators 3, one generator 3 of interest may be referred to as the own machine, and other generators 3 other than the own machine may be referred to as other machines. is there.

負荷６は、例えば自然エネルギーを利用した発電機の出力を利用する装置として好適なものが選択される。そのような負荷６として、例えば蓄電負荷（電気自動車のバッテリー、電気自動車等に用いる蓄電池等）や蓄熱負荷（家庭用給湯器や業務用蓄熱式空調等）がある。尚、負荷６の夫々には計測指令装置１０によって電力消費量を調節するための電力消費量の制御機構が設けられている。   As the load 6, for example, a suitable device is selected as a device that uses the output of a generator that uses natural energy. Examples of such a load 6 include a storage load (battery of an electric vehicle, a storage battery used for an electric vehicle, etc.) and a heat storage load (a domestic water heater, a commercial heat storage type air conditioner, etc.). Each load 6 is provided with a power consumption control mechanism for adjusting the power consumption by the measurement command device 10.

変圧器７は、高圧配電線３から供給される高圧の電力を負荷６の利用に適した電圧に変換する装置であり、例えば柱上変圧器や地中変圧器である。   The transformer 7 is a device that converts high-voltage power supplied from the high-voltage distribution line 3 into a voltage suitable for use of the load 6, and is, for example, a pole transformer or an underground transformer.

計測装置８は、夫々が付設されている発電機５の出力（以下、発電機出力と称する。）を計測する。計測装置８は、計測した発電機出力を、内部ネットワーク５０を介して計測指令装置１０及び通信装置２０に随時送信（ブロードキャスト）する。   The measuring device 8 measures the output of the generator 5 to which each is attached (hereinafter referred to as a generator output). The measurement device 8 transmits (broadcasts) the measured generator output to the measurement command device 10 and the communication device 20 as needed via the internal network 50.

計測指令装置１０は、夫々が付設されている負荷６の電力消費量を計測する。また計測指令装置１０は、計測した電力消費量を、内部ネットワーク５０を介して他の計測指令装置１０及び通信装置２０に随時送信（ブロードキャスト）する。計測指令装置１０は、計測装置８から送られてくる発電機出力、他の計測指令装置１０から送られてくる電力消費量、及び通信装置２０から送られてくる後述の調整量を受信する。   The measurement command device 10 measures the power consumption of the load 6 to which each is attached. In addition, the measurement command device 10 transmits (broadcasts) the measured power consumption to other measurement command devices 10 and the communication device 20 via the internal network 50 as needed. The measurement command device 10 receives a generator output sent from the measurement device 8, a power consumption amount sent from another measurement command device 10, and an adjustment amount described later sent from the communication device 20.

また計測指令装置１０は、自身が接続している低圧配電線４に接続している発電機５の出力の合計と、自身が接続している低圧配電線４に接続している負荷６の電力消費量の合計との差である自低圧配電線需給差を求める。そして計測指令装置１０は、自低圧配電線需給差と調整量とに基づき、自身が接続している低圧配電線４に接続している負荷６の制御量である負荷制御量を求め、求めた負荷制御量を所定の配分条件に従い、自身が接続している低圧配電線４に接続している負荷６の夫々に配分し、配分した負荷制御量に従い負荷６の夫々の電力消費量を制御する。   In addition, the measurement command device 10 includes the total output of the generator 5 connected to the low-voltage distribution line 4 to which it is connected and the power of the load 6 connected to the low-voltage distribution line 4 to which it is connected. The difference between supply and demand of the low-voltage distribution line, which is the difference from the total consumption, is obtained. And the measurement instruction | command apparatus 10 calculated | required and calculated | required the load control amount which is the control amount of the load 6 currently connected to the low voltage distribution line 4 which self connected based on the own low voltage distribution line supply and demand difference and the adjustment amount. The load control amount is distributed to each of the loads 6 connected to the low-voltage distribution line 4 to which the load control amount is connected according to a predetermined distribution condition, and each power consumption amount of the load 6 is controlled according to the distributed load control amount. .

通信装置２０は、他の低圧配電線４に接続している発電機５の出力の合計と他の低圧配電線４に接続している負荷６の電力消費量の合計との差である他低圧配電線需給差を他の通信装置２０から取得し、自低圧配電線需給差と他低圧配電線需給差とに基づき、自低圧配電線需給差を解消するのに用いる電力の調整量を求め、求めた調整量を内部ネットワーク５０を介して計測指令装置１０に通知する。尚、通信装置２０は、例えば高圧配電線３の潮流の変化が少なくなるように上記調整量を求める。計測指令装置１０を中心とした情報の流れを図２に示す。   The communication device 20 is the other low-voltage that is the difference between the total output of the generator 5 connected to the other low-voltage distribution line 4 and the total power consumption of the load 6 connected to the other low-voltage distribution line 4. The distribution line supply / demand difference is acquired from the other communication device 20, and based on the own low voltage distribution line supply / demand difference and the other low voltage distribution line supply / demand difference, the adjustment amount of power used to eliminate the own low voltage distribution line supply / demand difference is obtained, The obtained adjustment amount is notified to the measurement command device 10 via the internal network 50. In addition, the communication apparatus 20 calculates | requires the said adjustment amount so that the change of the tidal current of the high voltage distribution line 3 may decrease, for example. A flow of information centering on the measurement command device 10 is shown in FIG.

図３Ａに計測装置８のハードウエア構成を示している。同図に示すように、計測装置８は、ＣＰＵ８１及びメモリ８２と、計測指令装置１０や通信装置２０と通信するための通信回路８３と、発電機５の発電機出力を計測する計測回路８４と、を備えている。   FIG. 3A shows the hardware configuration of the measuring device 8. As shown in the figure, the measurement device 8 includes a CPU 81 and a memory 82, a communication circuit 83 for communicating with the measurement command device 10 and the communication device 20, and a measurement circuit 84 for measuring the generator output of the generator 5. It is equipped with.

図３Ｂに計測指令装置１０のハードウエア構成を示している。同図に示すように、計測指令装置１０は、ＣＰＵ１１１と、ＲＡＭ・ＲＯＭ等のメモリ１１２と、ハードディスク等の記憶装置１１３と、キーボードやマウス等の入力装置１１４と、液晶ディスプレイ等の表示装置１１５と、計測装置８、他の計測指令装置１０、及び通信装置２０と通信するための通信回路１１６と、ＲＴＣ（Real Time Clock）等を用いて構成され、現在日時等の日時情報（タイムスタンプ）を生成する計時回路１１７と、負荷６の電力消費量を計測する計測回路１１８と、指令値に従って負荷６の電力消費量を制御する制御回路１１９と、を備えている。   FIG. 3B shows the hardware configuration of the measurement command device 10. As shown in the figure, a measurement command device 10 includes a CPU 111, a memory 112 such as a RAM / ROM, a storage device 113 such as a hard disk, an input device 114 such as a keyboard and a mouse, and a display device 115 such as a liquid crystal display. And a communication circuit 116 for communicating with the measurement device 8, the other measurement command device 10, and the communication device 20, RTC (Real Time Clock), etc., and date and time information (time stamp) such as the current date and time A timing circuit 117 for generating the power, a measuring circuit 118 for measuring the power consumption of the load 6, and a control circuit 119 for controlling the power consumption of the load 6 according to the command value.

図３Ｃに通信装置２０のハードウエア構成を示している。同図に示すように、通信装置２０は、ＣＰＵ１２１及びメモリ１２２と、計測装置８、計測指令装置１０及び他の通信装置２０と通信するための通信回路１２３と、を備えている。   FIG. 3C shows the hardware configuration of the communication device 20. As shown in the figure, the communication device 20 includes a CPU 121 and a memory 122, and a communication circuit 123 for communicating with the measurement device 8, the measurement command device 10, and other communication devices 20.

図４に計測指令装置１０の機能を示している。同図に示すように、計測指令装置１０は、電力消費量計測部４１１、自機情報送信部４１２、他機情報受信部４１３、発電機出力取得部４１４、調整量受信部４１５、負荷制御量算出部４１６、フィルタ処理部４１７、配分処理部４１８、及び指令値生成部４１９、を備えている。尚、これらの機能は、計測指令装置１０のハードウエアによって、もしくは、計測指令装置１０のＣＰＵ１１１が、メモリ１１２又は記憶装置１１３に格納されているプログラムを読み出して実行することにより実現される。   FIG. 4 shows the function of the measurement command device 10. As shown in the figure, the measurement command device 10 includes a power consumption measuring unit 411, an own device information transmitting unit 412, an other device information receiving unit 413, a generator output obtaining unit 414, an adjustment amount receiving unit 415, a load control amount. A calculation unit 416, a filter processing unit 417, a distribution processing unit 418, and a command value generation unit 419 are provided. Note that these functions are realized by hardware of the measurement command device 10 or by the CPU 111 of the measurement command device 10 reading and executing a program stored in the memory 112 or the storage device 113.

また同図に示すように、計測指令装置１０は、計測値データベース４２１を備えている。計測値データベース４２１は、例えば計測指令装置１０において動作するＤＢＭＳ（Data Base Management System）によって管理される。   As shown in the figure, the measurement command device 10 includes a measurement value database 421. The measurement value database 421 is managed by, for example, a DBMS (Data Base Management System) that operates in the measurement command device 10.

図４に示した機能のうち、電力消費量計測部４１１は、負荷６の電力消費量（以下、自機電力消費量と称する。）を計測し、計測した自機電力消費量を計測時刻（タイムスタンプ）に対応づけて計測値データベース４２１に格納する。   4, the power consumption measuring unit 411 measures the power consumption of the load 6 (hereinafter referred to as “own device power consumption”), and the measured own device power consumption is measured at the measurement time ( (Time stamp) and stored in the measured value database 421.

自機情報送信部４１２は、計測した自機電力消費量を、当該計測指令装置１０が付設されている自機と同じ低圧グループに所属している他機の計測指令装置１０、及び自機が接続している低圧配電線４と高圧配電線３との間に介在している変圧器７に付設されている通信装置２０に送信（ブロードキャスト）する。尚、送信する情報には、自機の識別子及び自機の後述する制約条件が付帯する。   The own device information transmission unit 412 uses the measured command power consumption amount of the measured command device 10 of another device belonging to the same low pressure group as the own device to which the measurement command device 10 is attached, and the own device It transmits (broadcasts) to the communication apparatus 20 attached to the transformer 7 interposed between the low voltage distribution line 4 and the high voltage distribution line 3 which are connected. The information to be transmitted is accompanied by an identifier of the own device and a constraint condition described later of the own device.

他機情報受信部４１３は、他の計測指令装置１０から内部ネットワーク５０を介して送られてくる電力消費量（以下、他機電力消費量と称する。）を、その計測指令装置１０が付設されている発電機５の識別子、及び制約条件とともに受信し、受信した他機電力消費量を、上記識別子、上記制約条件、及びその他機電力消費量の計測時刻（タイムスタンプ）と対応づけて、計測値データベース４２１に格納する。   The other device information receiving unit 413 is provided with the measurement command device 10 for the power consumption (hereinafter referred to as “other device power consumption”) sent from the other measurement command device 10 via the internal network 50. The other machine power consumption received together with the identifier of the power generator 5 that has been received, and the received conditions are measured in association with the measurement time (time stamp) of the above identifier, the above restriction conditions, and the other machine power consumption. Stored in the value database 421.

発電機出力取得部４１４は、内部ネットワーク５０を介して計測装置８から送られてくる発電機出力をその計測装置８が付設されている発電機５の識別子、及び制約条件とともに受信し、受信した発電機出力を、上記識別子、上記制約条件、及びその発電機出力の計測時刻（タイムスタンプ）と対応づけて、計測値データベース４２１に格納する。   The generator output acquisition unit 414 receives and receives the generator output sent from the measuring device 8 via the internal network 50 together with the identifier of the generator 5 to which the measuring device 8 is attached and the constraint condition. The generator output is stored in the measurement value database 421 in association with the identifier, the constraint condition, and the measurement time (time stamp) of the generator output.

調整量受信部４１５は、内部ネットワーク５０を介して通信装置２０から送られてくる調整量を受信して記憶する。   The adjustment amount receiving unit 415 receives and stores the adjustment amount sent from the communication device 20 via the internal network 50.

負荷制御量算出部４１６は、電力消費量計測部４１１によって計測された自機電力消費量と、発電機出力取得部４１４によって取得された発電機出力と、調整量受信部４１５によって記憶された調整量とを合計した値（以下、負荷制御量と称する。）を算出する。   The load control amount calculation unit 416 includes the own power consumption measured by the power consumption measurement unit 411, the generator output acquired by the generator output acquisition unit 414, and the adjustment stored by the adjustment amount reception unit 415. A value obtained by summing the amounts (hereinafter referred to as load control amount) is calculated.

フィルタ処理部４１７は、負荷制御量算出部４１６によって求められた負荷制御量について、当該負荷制御量に含まれる極短周期成分を除去する平滑化処理、並びに微動成分を除去する不感帯処理等のフィルタ処理を行う。   The filter processing unit 417 performs filtering such as a smoothing process for removing an extremely short period component included in the load control amount and a dead band process for removing a fine movement component with respect to the load control amount obtained by the load control amount calculating unit 416. Process.

配分処理部４１８は、フィルタ処理後の負荷制御量を、所定の配分条件に従い自グループに所属する負荷６に配分する。例えば配分処理部４１８は、各負荷６に負荷制御量を均等に配分、即ち負荷制御量に１／（自グループに接続している負荷６の総数）を乗算した値を各負荷６に配分する。   The distribution processing unit 418 distributes the load control amount after the filter processing to the load 6 belonging to the own group according to a predetermined distribution condition. For example, the distribution processing unit 418 distributes the load control amount evenly to each load 6, that is, distributes a value obtained by multiplying the load control amount by 1 / (total number of loads 6 connected to the own group) to each load 6. .

指令値生成部４１９は、当該計測指令装置１０が付設されている負荷６の電力消費量を配分処理部４１８によって配分された負荷制御量となるように制御するための指令値を生成し、生成した指令値に従って負荷６の電力消費量を制御する。   The command value generation unit 419 generates and generates a command value for controlling the power consumption of the load 6 to which the measurement command device 10 is attached to be the load control amount distributed by the distribution processing unit 418. The power consumption of the load 6 is controlled according to the command value.

図５に計測値データベース４２１に格納されるデータのレコードの構成を示している。同図に示すように、このレコードは、計測値種別４２１１、識別子４２１２、計測値４２１３、取得日時４２１４、及び制約条件４２１５の各項目を含む。このうち計測値種別４２１１には、当該レコードに設定されている計測値が、発電機５の発電機出力であるのか、負荷６の電力消費量であるのかを示す値が設定される。   FIG. 5 shows the configuration of data records stored in the measured value database 421. As shown in the figure, this record includes items of a measurement value type 4211, an identifier 4212, a measurement value 4213, an acquisition date and time 4214, and a constraint condition 4215. Among these, the measurement value type 4211 is set to a value indicating whether the measurement value set in the record is the generator output of the generator 5 or the power consumption of the load 6.

識別子４２１２には、そのレコードがどの発電機５又は負荷６についてのものであるのかを示す識別子（発電機５又は負荷６ごとに固有に付与される識別子）が設定される。計測値４２１３には、計測値（発電機出力又は電力消費量）が設定される。取得日時４２１４には、その計測値の取得日時（タイムスタンプ）が設定される。   In the identifier 4212, an identifier (identifier uniquely assigned to each generator 5 or load 6) indicating which generator 5 or load 6 the record belongs to is set. In the measurement value 4213, a measurement value (generator output or power consumption) is set. In the acquisition date 4214, the acquisition date (time stamp) of the measurement value is set.

制約条件４２１５には、そのレコードが負荷６についてのものである場合に、その負荷６に課せられる制約条件が設定される。尚、制約条件とは、負荷６の制御に関する条件であり、例えば負荷６の電力消費量の制御可能域（可変域）を示す情報（電力消費量の上限値又は電力消費量の下限値）である。   The restriction condition 4215 is set with a restriction condition imposed on the load 6 when the record is for the load 6. The constraint condition is a condition related to the control of the load 6, for example, information indicating the controllable range (variable range) of the power consumption of the load 6 (the upper limit value of the power consumption or the lower limit value of the power consumption). is there.

図６は計測指令装置１０が行う処理（以下、指令値生成処理Ｓ７００と称する。）の概要を説明する図である。また図７は指令値生成処理Ｓ７００の詳細を説明するフローチャートである。以下、これらの図とともに、指令値生成処理Ｓ７００について説明する。   FIG. 6 is a diagram for explaining the outline of the processing (hereinafter referred to as command value generation processing S700) performed by the measurement command device 10. FIG. 7 is a flowchart for explaining the details of the command value generation processing S700. The command value generation process S700 will be described below with reference to these drawings.

図７に示すように、計測指令装置１０は、指令値を生成する機会が到来（例えば１０分毎）したか否かをリアルタイムに監視している（Ｓ７１１）。上記機会が到来すると（Ｓ７１１：ＹＥＳ）、計測指令装置１０の電力消費量計測部４１１は、自機電力消費量を計測し、計測した自機電力消費量を計測値データベース４２１に格納する（Ｓ７１２）。   As shown in FIG. 7, the measurement command device 10 monitors in real time whether or not an opportunity to generate a command value has arrived (for example, every 10 minutes) (S711). When the above-mentioned opportunity comes (S711: YES), the power consumption measuring unit 411 of the measurement commanding apparatus 10 measures its own power consumption and stores the measured own power consumption in the measured value database 421 (S712). ).

また計測指令装置１０の他機情報受信部４１３は、内部ネットワーク５０を介して他の計測指令装置１０から送られてくる他機電力消費量を受信し、受信した他機電力消費量を計測値データベース４２１に格納する（Ｓ７１３）。   Further, the other device information receiving unit 413 of the measurement command device 10 receives the other device power consumption sent from the other measurement command device 10 via the internal network 50, and measures the received other device power consumption as a measured value. Store in the database 421 (S713).

また計測指令装置１０の自機情報送信部４１２は、計測した自機電力消費量を、自機が所属する低圧グループに所属する他の計測指令装置１０、及び自機が接続している低圧配電線４と高圧配電線３との間に介在する変圧器７に付設されている通信装置２０に送信（ブロードキャスト）する（Ｓ７１４）。   In addition, the own device information transmission unit 412 of the measurement command device 10 transmits the measured own device power consumption to other measurement command devices 10 belonging to the low voltage group to which the own device belongs and the low voltage distribution to which the own device is connected. Transmission (broadcast) is performed to the communication device 20 attached to the transformer 7 interposed between the electric wire 4 and the high-voltage distribution line 3 (S714).

次に計測指令装置１０の発電機出力取得部４１４は、内部ネットワーク５０を介して計測装置８から送られてくる発電機出力を受信し、受信した発電機出力を計測値データベース４２１に格納する（Ｓ７１５）。   Next, the generator output acquisition unit 414 of the measurement command device 10 receives the generator output sent from the measurement device 8 via the internal network 50 and stores the received generator output in the measurement value database 421 ( S715).

次に計測指令装置１０の調整量受信部４１５は、内部ネットワーク５０を介して通信装置２０から送られてくる調整量を受信して記憶する（Ｓ７１６）。   Next, the adjustment amount receiving unit 415 of the measurement command device 10 receives and stores the adjustment amount sent from the communication device 20 via the internal network 50 (S716).

次に計測指令装置１０の負荷制御量算出部４１６は、電力消費量計測部４１１によって計測された自機電力消費量と、発電機出力取得部４１４によって取得された発電機出力と、調整量受信部４１５によって記憶された調整量とを合計することにより、負荷制御量を算出する（Ｓ７１７）。   Next, the load control amount calculation unit 416 of the measurement command device 10 receives the own power consumption measured by the power consumption measurement unit 411, the generator output acquired by the generator output acquisition unit 414, and the adjustment amount reception. The load control amount is calculated by summing the adjustment amount stored by the unit 415 (S717).

次に計測指令装置１０のフィルタ処理部４１７は、求められた負荷制御量について、当該負荷制御量に含まれる極短周期成分を除去する平滑化処理、並びに微動成分を除去する不感帯処理等のフィルタ処理を行う（Ｓ７１８）。   Next, the filter processing unit 417 of the measurement command device 10 performs filtering such as a smoothing process for removing an extremely short period component included in the load control quantity and a dead band process for removing a fine movement component with respect to the obtained load control quantity. Processing is performed (S718).

次に計測指令装置１０の配分処理部４１８は、フィルタ処理後の負荷制御量を、所定の配分条件に従い自グループに所属する負荷６に配分する（Ｓ７１９）。尚、配分条件に従って配分した結果がその負荷６の制約条件を満たさない場合は、制約条件を満たす範囲内で負荷制御量を配分し、残りの負荷制御量は配分可能な他の負荷６に再配分する。   Next, the distribution processing unit 418 of the measurement command device 10 distributes the load control amount after the filter processing to the load 6 belonging to the own group according to a predetermined distribution condition (S719). If the result of the allocation according to the allocation condition does not satisfy the constraint condition of the load 6, the load control amount is allocated within the range satisfying the constraint condition, and the remaining load control amount is redistributed to other load 6 that can be allocated. To distribute.

次に計測指令装置１０の指令値生成部４１９が、当該計測指令装置１０が付設されている負荷６の電力消費量を配分された負荷制御量に制御するための指令値を生成し、生成した指令値に従って負荷６の電力消費量を制御する（Ｓ７２０）。   Next, the command value generation unit 419 of the measurement command device 10 generates and generates a command value for controlling the power consumption of the load 6 to which the measurement command device 10 is attached to the allocated load control amount. The power consumption of the load 6 is controlled according to the command value (S720).

以上に説明したように、本実施形態の電力供給システム１にあっては、高圧配電線３に接続している低圧配電線４間で電力を融通し合うことができる。このため、低圧配電線４に、例えば、太陽光発電機のように出力変動の大きな発電機が接続しているような場合でも、コージェネレーション発電機（ディーゼル発電機、ガスタービン発電機、ガスエンジン発電機等）等を用意することなく、出力変動を抑制することができる。また以上の構成によれば、低圧配電線４側の出力変動の高圧配電線３側への影響が軽減され、太陽光発電機などの発電機の出力変動分の需給調整しろが緩和される。また低圧配電線４間で電力を融通し合うことにより、高圧配電線３の潮流変動が抑制され、高圧配電線３の電圧変動を抑制することができる。   As described above, in the power supply system 1 of this embodiment, power can be interchanged between the low-voltage distribution lines 4 connected to the high-voltage distribution lines 3. For this reason, even when a generator with large output fluctuations is connected to the low-voltage distribution line 4 such as a solar power generator, for example, a cogeneration generator (diesel generator, gas turbine generator, gas engine) The output fluctuation can be suppressed without preparing a generator or the like. Moreover, according to the above structure, the influence of the output fluctuation on the low voltage distribution line 4 side on the high voltage distribution line 3 side is reduced, and the margin for adjusting the supply and demand for the output fluctuation of the generator such as a solar power generator is alleviated. In addition, by interchanging power between the low-voltage distribution lines 4, fluctuations in the power flow of the high-voltage distribution lines 3 can be suppressed, and voltage fluctuations in the high-voltage distribution lines 3 can be suppressed.

また太陽光発電機の出力を蓄電負荷、蓄熱負荷のいずれかで消費するようにすることで、太陽光発電機の出力変動の高圧配電線３への波及を軽減することができる。また系統事故等により太陽光発電機が一斉に解列しても、解列中は太陽光発電機の電力を利用していた蓄電負荷又は蓄熱負荷は運転しない。このため、解列による需給バランスへの影響を防ぐことができる。   Further, by consuming the output of the solar power generator by either the storage load or the heat storage load, it is possible to reduce the spread of the output fluctuation of the solar power generator to the high-voltage distribution line 3. Even if the solar power generators are disconnected all at once due to a system fault or the like, the storage load or the heat storage load using the power of the solar power generator is not operated during the disconnection. For this reason, the influence on the supply and demand balance by the disconnection can be prevented.

以上に説明した実施の形態は、本発明の理解を容易にするためのものであり、本発明を限定するものではない。本発明は、その趣旨を逸脱することなく、変更、改良され得ると共に、本発明にはその等価物が含まれることは勿論である。   Embodiment described above is for making an understanding of this invention easy, and does not limit this invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes the equivalents thereof.

１ 電力供給システム
２ 変電所
３ 高圧配電線
４ 低圧配電線
５ 発電機
６ 負荷
７ 変圧器
８ 計測装置
１０ 計測制御装置
２０ 通信装置
５０ 内部ネットワーク
６０ 外部ネットワーク
４１１ 電力消費量計測部
４１２ 自機情報送信部
４１３ 他機情報受信部
４１４ 発電機出力取得部
４１５ 調整量受信部
４１６ 負荷制御量算出部
４１７ フィルタ処理部
４１８ 配分処理部
４１９ 指令値生成部
４２１ 計測値データベース
DESCRIPTION OF SYMBOLS 1 Electric power supply system 2 Substation 3 High voltage distribution line 4 Low voltage distribution line 5 Generator 6 Load 7 Transformer 8 Measurement apparatus 10 Measurement control apparatus 20 Communication apparatus 50 Internal network 60 External network 411 Power consumption measurement part 412 Self-machine information transmission Unit 413 Other machine information receiving unit 414 Generator output obtaining unit 415 Adjustment amount receiving unit 416 Load control amount calculating unit 417 Filter processing unit 418 Distribution processing unit 419 Command value generating unit 421 Measurement value database

Claims (7)

変電所に接続する高圧配電線と、前記高圧配電線に接続する複数の低圧配電線と、前記低圧配電線の夫々に接続する発電機と、前記低圧配電線の夫々に接続する負荷とを含む電力供給システムの制御方法であって、
前記低圧配電線の夫々に、前記発電機の出力を計測する計測装置と、前記負荷の電力消費量を計測する計測指令装置と、前記計測装置及び前記計測指令装置と通信可能に接続する通信装置とを設け、
前記通信装置同士を互いに通信可能に接続し、
前記計測指令装置の夫々が、自身が接続している前記低圧配電線に接続している前記発電機の出力の合計と前記低圧配電線に接続している前記負荷の電力消費量の合計との差である自低圧配電線需給差を求め、
前記通信装置の夫々が、自身が設けられている前記低圧配電線に設けられている前記計測指令装置から前記自低圧配電線需給差を取得し、他の前記低圧配電線に接続している前記発電機の出力の合計と他の前記低圧配電線に接続している前記負荷の電力消費量の合計との差である他低圧配電線需給差を他の前記通信装置から取得し、前記自低圧配電線需給差と前記他低圧配電線需給差とに基づき、前記自低圧配電線需給差を解消するのに用いる電力の調整量を求めて前記計測指令装置に通知し、
前記計測指令装置の夫々が、前記自低圧配電線需給差と前記調整量とに基づき、自身が接続している前記低圧配電線に接続している前記負荷の制御量である負荷制御量を求め、求めた前記負荷制御量を所定の配分条件に従い、自身が接続している前記低圧配電線に接続している前記負荷の夫々に配分し、配分した負荷制御量に従い前記負荷の夫々の電力消費量を制御する
ことを特徴とする電力供給システムの制御方法。 Including a high-voltage distribution line connected to the substation, a plurality of low-voltage distribution lines connected to the high-voltage distribution line, a generator connected to each of the low-voltage distribution lines, and a load connected to each of the low-voltage distribution lines A method for controlling a power supply system, comprising:
A measurement device that measures the output of the generator, a measurement command device that measures the power consumption of the load, and a communication device that is communicably connected to the measurement device and the measurement command device for each of the low-voltage distribution lines And
The communication devices are connected so that they can communicate with each other,
Each of the measurement command devices includes a total output of the generator connected to the low-voltage distribution line to which the measurement command device is connected and a total power consumption of the load connected to the low-voltage distribution line. Find the difference between supply and demand of the low voltage distribution line
Each of the communication devices acquires the self-low voltage distribution line supply / demand difference from the measurement command device provided in the low voltage distribution line provided with the communication device, and is connected to the other low voltage distribution line. The other low-voltage distribution line supply / demand difference, which is the difference between the total output of the generator and the total power consumption of the load connected to the other low-voltage distribution line, is acquired from the other communication device, and the self-low voltage Based on the distribution line supply-demand difference and the other low-voltage distribution line supply-demand difference, obtain the adjustment amount of power used to eliminate the self-low-voltage distribution line supply-demand difference, and notify the measurement command device,
Each of the measurement command devices obtains a load control amount that is a control amount of the load connected to the low-voltage distribution line to which the measurement command device is connected based on the supply-demand difference of the low-voltage distribution line and the adjustment amount. The obtained load control amount is distributed to each of the loads connected to the low-voltage distribution line to which the load control unit is connected according to a predetermined distribution condition, and each power consumption of the load is distributed according to the distributed load control amount. A method for controlling a power supply system, characterized by controlling an amount. 請求項１に記載の電力供給システムの制御方法であって、
前記発電機には太陽光発電機が含まれている
ことを特徴とする電力供給システムの制御方法。 It is a control method of the electric power supply system according to claim 1,
The method of controlling a power supply system, wherein the generator includes a solar generator. 請求項１に記載の電力供給システムの制御方法であって、
前記発電機には太陽光発電機が含まれており、
前記負荷には蓄電負荷、蓄熱負荷の少なくともいずれかが含まれており、
前記太陽光発電機の出力を、前記蓄電負荷又は前記蓄熱負荷の少なくともいずれかで消費する
ことを特徴とする電力供給システムの制御方法。 It is a control method of the electric power supply system according to claim 1,
The generator includes a solar generator,
The load includes at least one of a storage load and a heat storage load,
The power supply system control method, wherein the output of the solar power generator is consumed by at least one of the power storage load and the heat storage load. 請求項３に記載の電力供給システムの制御方法であって、
前記計測指令装置の夫々は、
他の前記計測指令装置から他の前記計測指令装置が計測している前記負荷の電力消費量の可変域を示す情報を受信し、
前記他の前記計測指令装置が計測している前記負荷の電力消費量が当該負荷の前記可変域の範囲内になるように前記負荷制御量を前記負荷に配分する
ことを特徴とする電力供給システムの制御方法。 It is a control method of the electric power supply system according to claim 3,
Each of the measurement command devices is
Receiving information indicating the variable range of the power consumption of the load that the other measurement command device is measuring from the other measurement command device;
The power supply system is characterized in that the load control amount is distributed to the load so that the power consumption of the load measured by the other measurement command device falls within the variable range of the load. Control method. 請求項４に記載の電力供給システムの制御方法であって、
前記出力可変域を示す情報は、電力消費量の上限値又は電力消費量の下限値のうちの少なくともいずれかを含む
ことを特徴とする電力供給システムの制御方法。 It is a control method of the electric power supply system according to claim 4,
The information indicating the output variable range includes at least one of an upper limit value of power consumption and a lower limit value of power consumption. 請求項１に記載の電力供給システムの制御方法であって、
前記配分条件が、前記負荷制御量を前記負荷の夫々に均等に配分するという条件であることを特徴とする電力供給システムの制御方法。 It is a control method of the electric power supply system according to claim 1,
The control method for a power supply system, wherein the distribution condition is a condition that the load control amount is evenly distributed to each of the loads . 変電所に接続する高圧配電線と、前記高圧配電線に接続する複数の低圧配電線と、前記低圧配電線の夫々に接続する発電機と、前記低圧配電線の夫々に接続する負荷とを含む電力供給システムであって、
前記低圧配電線の夫々に、前記発電機の出力を計測する計測装置と、前記負荷の電力消費量を計測する計測指令装置と、前記計測装置及び前記計測指令装置と通信可能に接続する通信装置とを含み、
前記通信装置同士は互いに通信可能に接続され、
前記計測指令装置の夫々は、自身が接続している前記低圧配電線に接続している前記発電機の出力の合計と前記低圧配電線に接続している前記負荷の電力消費量の合計との差である自低圧配電線需給差を求め、
前記通信装置の夫々は、自身が設けられている前記低圧配電線に設けられている前記計測指令装置から前記自低圧配電線需給差を取得し、他の前記低圧配電線に接続している前記発電機の出力の合計と他の前記低圧配電線に接続している前記負荷の電力消費量の合計との差である他低圧配電線需給差を他の前記通信装置から取得し、前記自低圧配電線需給差と前記他低圧配電線需給差とに基づき、前記自低圧配電線需給差を解消するのに用いる電力の調整量を求めて前記計測指令装置に通知し、
前記計測指令装置の夫々は、前記自低圧配電線需給差と前記調整量とに基づき、自身が接続している前記低圧配電線に接続している前記負荷の制御量である負荷制御量を求め、求めた前記負荷制御量を所定の配分条件に従い、自身が接続している前記低圧配電線に接続している前記負荷の夫々に配分し、配分した負荷制御量に従い前記負荷の夫々の電力消費量を制御する
ことを特徴とする電力供給システム。 Including a high-voltage distribution line connected to the substation, a plurality of low-voltage distribution lines connected to the high-voltage distribution line, a generator connected to each of the low-voltage distribution lines, and a load connected to each of the low-voltage distribution lines A power supply system,
A measurement device that measures the output of the generator, a measurement command device that measures the power consumption of the load, and a communication device that is communicably connected to the measurement device and the measurement command device for each of the low-voltage distribution lines Including
The communication devices are communicably connected to each other,
Each of the measurement command devices includes a total output of the generator connected to the low-voltage distribution line to which the measurement command device is connected and a total power consumption of the load connected to the low-voltage distribution line. Find the difference between supply and demand of the low voltage distribution line
Each of the communication devices acquires the self-low voltage distribution line supply / demand difference from the measurement command device provided in the low voltage distribution line in which the communication device is provided, and is connected to the other low voltage distribution line. The other low-voltage distribution line supply / demand difference, which is the difference between the total output of the generator and the total power consumption of the load connected to the other low-voltage distribution line, is acquired from the other communication device, and the self-low voltage Based on the distribution line supply-demand difference and the other low-voltage distribution line supply-demand difference, obtain the adjustment amount of power used to eliminate the self-low-voltage distribution line supply-demand difference, and notify the measurement command device,
Each of the measurement commanding devices obtains a load control amount that is a control amount of the load connected to the low-voltage distribution line to which it is connected based on the supply / demand difference of the low-voltage distribution line and the adjustment amount. The obtained load control amount is distributed to each of the loads connected to the low-voltage distribution line to which the load control unit is connected according to a predetermined distribution condition, and each power consumption of the load is distributed according to the distributed load control amount. A power supply system characterized by controlling the amount.
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