JP2014003839A - Control method of power transmission state in power system - Google Patents

Control method of power transmission state in power system Download PDF

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JP2014003839A
JP2014003839A JP2012138587A JP2012138587A JP2014003839A JP 2014003839 A JP2014003839 A JP 2014003839A JP 2012138587 A JP2012138587 A JP 2012138587A JP 2012138587 A JP2012138587 A JP 2012138587A JP 2014003839 A JP2014003839 A JP 2014003839A
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power
transmission state
relay device
wireless relay
control method
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Masahiro Tanitsu
昌洋 谷津
Koichi Hara
弘一 原
Kiyoto Tobe
澄人 戸邊
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Hitachi Ltd
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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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • 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
    • Y04S10/14—Energy storage units
    • 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
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

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  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a control method of a power transmission state in a power system capable of performing a flexible control of a power transmission state in the power system.SOLUTION: The control method of a power transmission state in a power system detects a change of a power transmission state in the power system, transmits a control signal from a ground terminal station connected to the power system to a power radio repeater disposed in cosmic space. The power radio repeater obtains power according to the control signal and copes with the change in the transmission state by relaying the obtained power to the terminal station.

Description

本発明は、電力系統内の送電状態を制御する方法に関する。   The present invention relates to a method for controlling a power transmission state in a power system.

電力系統における発電設備は、送電線を介して電力系統に連携されている。発電設備からの送電量は、スケジュールや指令で需要量に応じて変化させるが、送電線の熱容量や安定度の制約条件の範囲内で運用することが必要である。また、電力系統の事故発生時は、電力系統の安定度を維持するために、特許文献１にあるように、発電機を電力系統から切り離して系統の安定化を図っている。   The power generation equipment in the power system is linked to the power system via a transmission line. The amount of power transmitted from the power generation facility is changed according to the demand amount according to a schedule or a command, but it is necessary to operate within the limits of the heat capacity and stability of the transmission line. In addition, when a power system accident occurs, in order to maintain the stability of the power system, as described in Patent Document 1, the generator is separated from the power system to stabilize the system.

特開２００１−３５２６７８号公報JP 2001-352678 A

特許文献１の方法では、発電設備等の制御可能な機器が、送電線に接続されているため、制御対象の入り切りの制御しかできず、柔軟な電力系統内送電状態制御が出来なかった。   In the method of Patent Document 1, since a controllable device such as a power generation facility is connected to the power transmission line, only control of the control target can be performed, and flexible power transmission state control within the power system cannot be performed.

請求項１に記載の電力系統内送電状態制御方法は、電力系統内の送電状態の変化を検出し、検出された送電状態の変化に基づき、電力系統に接続された地上の端局から宇宙空間に配置された電力無線中継装置へ制御信号を送信し、電力無線中継装置が、制御信号に応じて、電力を取得するとともに、取得した電力を端局へ中継することによって、送電状態の変化に対応することを特徴とする。   The power transmission state control method in an electric power system according to claim 1 detects a change in the power transmission state in the power system, and based on the detected change in the power transmission state, the terminal device on the ground connected to the power system The power wireless relay device acquires power according to the control signal and relays the acquired power to the terminal station, thereby changing the power transmission state. It is characterized by corresponding.

本発明によれば、柔軟な電力系統内送電状態制御が可能となる。   According to the present invention, flexible power transmission state control within a power system is possible.

本発明の第１の実施の形態における電力系統内送電状態制御方法を説明するための図である。It is a figure for demonstrating the power transmission state control method in the electric power grid | system in the 1st Embodiment of this invention. 本発明の第２の実施の形態における電力系統内送電状態制御方法を説明するための図である。It is a figure for demonstrating the power transmission state control method in the electric power grid | system in the 2nd Embodiment of this invention. 本発明の第３の実施の形態における電力系統内送電状態制御方法を説明するための図である。It is a figure for demonstrating the power transmission state control method in an electric power grid | system in the 3rd Embodiment of this invention. 本発明の変形例における電力系統内送電状態制御方法を説明するための図である。It is a figure for demonstrating the power transmission state control method in the electric power grid | system in the modification of this invention. 本発明の第１の実施の形態における電力系統内送電状態制御方法による制御を行う電力無線中継装置１及び地上受信局２の動作を説明するためのフローチャートである。It is a flowchart for demonstrating operation | movement of the electric power radio relay apparatus 1 and the ground receiving station 2 which perform control by the power transmission state control method in an electric power grid | system in the 1st Embodiment of this invention.

−−−第１の実施の形態−−−
図１は、本発明の第１の実施の形態における電力系統内送電状態制御方法を説明するための図である。電力無線中継装置１は、宇宙空間に配置される太陽光発電設備であって、太陽光を受光して自家発電することにより電力を取得する発電部２３１と、自家発電によって取得された電力をマイクロ波又は レーザ光等の電磁波に変換する変換部２５１と、電力が変換されて得られた電磁波１０１を地上受信局２に向けて送信する送受信部２０１とを含む。送受信部２０１は、さらに、後述するように、地上受信局（端局）２からの制御指令信号１０２を受信する。 --- First embodiment ---
FIG. 1 is a diagram for explaining a power transmission state control method in an electric power system according to the first embodiment of the present invention. The power wireless relay device 1 is a photovoltaic power generation facility arranged in outer space, and receives a sunlight to generate power by generating power by itself and generating power 231 by using the power generated by the power generation. A conversion unit 251 that converts the electromagnetic wave 101 into an electromagnetic wave such as a wave or a laser beam; and a transmission / reception unit 201 that transmits the electromagnetic wave 101 obtained by converting the electric power to the ground receiving station 2. The transmission / reception unit 201 further receives a control command signal 102 from the ground receiving station (terminal station) 2 as described later.

地上受信局（端局）２は、電力無線中継装置１からの電磁波１０１を受信する送受信部２０２と、受信された電磁波１０１を電力に逆変換する変換部２５２と、送電線４経由で電力系統３に電力を送る送受電部２７２とを含む。送受信部２０２は、さらに、後述するように、電力無線中継装置１への制御指令信号１０２を送信する。例えば、地上受信局２の変換部２５２による電力変換にはレクテナが用いられる。地上受信局２は、電力無線中継装置１に対して、1対１となる構成や、複数台が対応する構成をとることが可能である。ここで、電力無線中継装置１において、複数の地上受信局２に向けて発電電力を分配する方法として、例えば発電ユニットの組み合わせを変える方法が考えられる。   The ground receiving station (terminal station) 2 includes a transmission / reception unit 202 that receives the electromagnetic wave 101 from the power wireless relay device 1, a conversion unit 252 that reversely converts the received electromagnetic wave 101 into electric power, and a power system via the transmission line 4. 3 includes a power transmission / reception unit 272 that transmits power to the power transmission / reception unit 3. The transmission / reception unit 202 further transmits a control command signal 102 to the power wireless relay device 1 as described later. For example, a rectenna is used for power conversion by the conversion unit 252 of the ground receiving station 2. The terrestrial receiving station 2 can take a one-to-one configuration or a configuration in which a plurality of units correspond to the power wireless relay device 1. Here, in the power wireless relay device 1, as a method of distributing the generated power toward the plurality of ground receiving stations 2, for example, a method of changing the combination of the power generation units is conceivable.

従来、宇宙空間にある発電衛星から地上の受信局へは、電力をマイクロ波又はレーザ光に変換してから送り、地上でマイクロ波又はレーザ光が電力に逆変換されるというようにして、宇宙空間にある発電衛星が電力系統に連携される。宇宙空間にある発電衛星から地上の受信局に対しては、電力がマイクロ波又はレーザ光として送られるため、物理的な送電線の制約はなくなるが、発電した電力を一方的に送るため、ベース電源としての扱いであった。本実施の形態における電力系統内送電状態制御方法によれば、各地上受信局２から電力無線中継装置１に対して、制御指令信号１０２が送られ、電力無線中継装置１から各地上受信局２に対して電磁波として送信される発電電力量を変化させることが可能となる。そのため、送受電部２７２によって送電線４を介して電力系統３に注入される電力量(見かけ上の発電量)を制御して、電力系統３内の送電状態制御を柔軟に行うことが可能となる。その効果として、電力系統の送電線潮流制約の解消や安定度制約の解消を行うことが可能となる。   Conventionally, power is converted from microwave power generation satellites in outer space to ground receiving stations before being sent to microwaves or laser light, and microwaves or laser lights are converted back to power on the ground. Power generation satellites in space are linked to the power system. Since power is sent from the power generation satellite in space to the ground receiving station as microwaves or laser light, there are no restrictions on physical transmission lines, but the generated power is unilaterally transmitted. It was treated as a power source. According to the power transmission state control method in the power system according to the present embodiment, a control command signal 102 is sent from each ground receiving station 2 to the power wireless relay device 1, and each power receiving device 2 receives each control signal 102 from the power wireless relay device 1. It becomes possible to change the electric power generation amount transmitted as an electromagnetic wave with respect to. Therefore, it is possible to control the power amount (apparent power generation amount) injected into the power system 3 via the power transmission line 4 by the power transmission / reception unit 272, and to flexibly perform the power transmission state control in the power system 3. Become. As an effect thereof, it becomes possible to eliminate the power transmission line flow restriction and the stability restriction of the power system.

太陽光発電地上設備（PV）１０が発電を行い、送電線４を介して電力系統３に接続される場合の問題点として、太陽光発電の発電量は日射量により決まるため、発電量の変動が発生し、その変動が電力系統に対して影響を与える問題があり、周波数や安定度の変動が発生する。そのため、送電線４に流れる電力量の変動を抑えるため、例えば太陽光発電設備と電力の貯蔵設備(バッテリ等)を組み合わせる必要があった。この方法の問題点として、貯蔵設備は発電するのではなく余剰分を保存する方式で効率が悪く、容量を増やすにはコストがかかる欠点があった。   As a problem when the photovoltaic power generation ground facility (PV) 10 generates power and is connected to the power system 3 via the transmission line 4, the amount of photovoltaic power generation is determined by the amount of solar radiation. Occurs, and there is a problem that the fluctuation affects the power system, and fluctuations in frequency and stability occur. Therefore, in order to suppress fluctuations in the amount of power flowing through the transmission line 4, for example, it is necessary to combine a solar power generation facility and a power storage facility (battery or the like). The problem with this method is that the storage facility does not generate electricity but stores the surplus, which is inefficient and costly to increase the capacity.

本実施の形態では、太陽光発電地上設備１０と地上受信局２とを組み合わせている。地上受信局２は、太陽光発電地上設備１０から送電線４に流れる電力量を補正するように制御指令信号１０２を電力無線中継装置１へ送ることにより、電力無線中継装置１では、制御指令信号１０２に応じて、発電部２３１が太陽光発電によって電力を取得する。上述したように、電力系統３に電力線４を介して接続された太陽光発電地上設備１０において、太陽光発電によって取得される太陽光発電量は日射量に応じて変動する。地上受信局２の送受電部２７２は、その太陽光発電地上設備１０から電力系統３へ供給される太陽光発電量の変動を、電力系統３内の送電状態の変化として検出する。上述したように、電力無線中継装置１において、変換部２５１は、太陽光発電によって取得された発電電力を電磁波１０１に変換する。   In the present embodiment, the photovoltaic power generation ground facility 10 and the ground receiving station 2 are combined. The ground receiving station 2 sends a control command signal 102 to the power wireless relay device 1 so as to correct the amount of power flowing from the photovoltaic power generation ground facility 10 to the transmission line 4. In response to 102, the power generation unit 231 acquires power by solar power generation. As described above, in the photovoltaic power generation ground facility 10 connected to the power system 3 via the power line 4, the amount of photovoltaic power generated by photovoltaic power generation varies according to the amount of solar radiation. The power transmission / reception unit 272 of the ground receiving station 2 detects a variation in the amount of photovoltaic power supplied from the photovoltaic power generation ground facility 10 to the power system 3 as a change in the power transmission state in the power system 3. As described above, in the power wireless relay device 1, the conversion unit 251 converts the generated power acquired by solar power generation into the electromagnetic wave 101.

太陽光発電地上設備１０から送電線４に流れる太陽光発電電力と電磁波１０１が逆変換されて得られる発電電力とが合成されて、送電線４に流れる電力量の変動を抑えることが可能となる。すなわち、制御指令信号１０２は、太陽光発電地上設備１０による太陽光発電量と、電力無線中継装置１の発電部２３１によって取得される発電電力量との和が略一定値となるように、その発電電力量の電力を、電力無線中継装置１の発電部２３１に取得させる指示を含んでいる。このようにして合成された合成電力が、電力系統３へ供給される。   Photovoltaic power that flows from the photovoltaic power generation ground facility 10 to the transmission line 4 and generated power that is obtained by reverse conversion of the electromagnetic wave 101 are combined, and fluctuations in the amount of power that flows to the transmission line 4 can be suppressed. . That is, the control command signal 102 is such that the sum of the amount of photovoltaic power generated by the photovoltaic power generation ground facility 10 and the amount of generated power acquired by the power generation unit 231 of the power wireless relay device 1 becomes a substantially constant value. It includes an instruction to cause the power generation unit 231 of the power wireless relay device 1 to acquire the generated power amount. The combined power combined in this way is supplied to the power system 3.

図５は、本実施の形態における電力系統内送電状態制御方法による制御を行う電力無線中継装置１及び地上受信局２の動作を説明するためのフローチャートである。ステップＳ５２１において、地上受信局２の送受電部２７２は、送電線４の電力量を監視することによって、太陽光発電地上設備１０から送電線４を介して電力系統３に注入される太陽光発電量の変動を監視する。ステップＳ５２２において、地上受信局２の送受電部２７２は、太陽光発電地上設備１０による太陽光発電量の変動を検出するか否かを判定し、変動する太陽光発電地上設備１０の太陽光発電量が、監視設定範囲内であればステップＳ５２１に戻り監視を継続し、監視設定範囲外であれば、処理はステップＳ５２３に移る。ここでの監視設定範囲の設定として、例えば、太陽光発電地上設備１０の太陽光発電量に少しでも変化があれば、ステップＳ５２３の処理に移る方法が考えられる。また、監視設定範囲の設定として、例えば、太陽光発電地上設備１０の太陽光発電量の変動幅に不感帯を設けて、その変動幅が不感帯を超えればステップＳ５２３の処理に移るという方法が考えられる。この場合、本実施の形態における電力系統内送電状態制御方法による制御が発動する感度は落ちるが、不要な変動に対して本制御が敏感に発動することを防止できるという効果がある。また、監視設定範囲の設定として、例えば、変動する太陽光発電地上設備１０の太陽光発電量が一定の目標値に達した際、すなわち事前に与えられたスケジュール値に達した際に、ステップＳ５２３の処理に移るという方法が考えられる。この場合、目標値に追従した制御が可能となる。   FIG. 5 is a flowchart for explaining the operation of power radio relay apparatus 1 and terrestrial receiving station 2 that perform control according to the power transmission state control method in the power system in the present embodiment. In step S <b> 521, the power transmission / reception unit 272 of the ground receiving station 2 monitors the power amount of the power transmission line 4, so that the solar power generation injected from the photovoltaic power generation ground facility 10 into the power system 3 via the power transmission line 4. Monitor volume fluctuations. In step S522, the power transmission / reception unit 272 of the ground receiving station 2 determines whether or not to detect a variation in the amount of photovoltaic power generated by the photovoltaic power generation ground facility 10, and the photovoltaic power generation of the varying photovoltaic power generation ground facility 10 is detected. If the amount is within the monitoring setting range, the process returns to step S521 to continue monitoring. If the amount is outside the monitoring setting range, the process proceeds to step S523. As the setting of the monitoring setting range here, for example, if there is any change in the amount of photovoltaic power generation of the photovoltaic power generation ground facility 10, a method of moving to the processing in step S523 is conceivable. In addition, as a setting of the monitoring setting range, for example, a dead band is provided in the fluctuation range of the photovoltaic power generation amount of the photovoltaic power generation ground facility 10, and if the fluctuation range exceeds the dead band, a process of moving to step S523 is conceivable. . In this case, the sensitivity at which the control by the power transmission state control method in the power system according to the present embodiment is activated is reduced, but there is an effect that it is possible to prevent the control from being activated sensitively to unnecessary fluctuations. Further, as the setting of the monitoring setting range, for example, when the amount of photovoltaic power generation of the fluctuating photovoltaic power generation ground facility 10 reaches a certain target value, that is, when it reaches a schedule value given in advance, step S523. The method of moving to the processing of can be considered. In this case, control following the target value is possible.

ステップＳ５２３で、地上受信局２の送受電部２７２は、電力無線中継装置１から地上受信局２へ中継される制御電力量を計算する。その制御電力量と、変動する太陽光発電地上設備１０の太陽光発電量との和が、予め定められた一定値に略一致するように、その制御電力量が計算される。制御電力量の計算方法として、例えば、太陽光発電地上設備１０から送電線４に送電される電力量と上記一定値との差分を計算する方式が考えられる。また、電力系統３に注入される電力量には、伝送遅れや制御遅れがあることを予め考慮し、制御電力量を上記差分より多めの電力量とすることで、電力系統３に注入される電力量が早めに上記一定値に達するようにする方式が考えられる。さらに、制御電力量を上記差分より小さめの電力量とすることで、電力系統３に注入される電力量の、本制御による変動を少なくする方式も考えられる。   In step S523, the power transmission / reception unit 272 of the ground receiving station 2 calculates the control power amount relayed from the power radio relay apparatus 1 to the ground receiving station 2. The control power amount is calculated so that the sum of the control power amount and the photovoltaic power generation amount of the fluctuating solar power generation ground facility 10 substantially matches a predetermined constant value. As a calculation method of the control power amount, for example, a method of calculating a difference between the power amount transmitted from the photovoltaic power generation ground facility 10 to the transmission line 4 and the above-described constant value is conceivable. In addition, the amount of power injected into the power system 3 is preliminarily taken into account that there is a transmission delay or a control delay, and the control power amount is set to a power amount larger than the above difference to be injected into the power system 3. A method is conceivable in which the amount of electric power reaches the constant value earlier. Furthermore, a method of reducing the fluctuation due to the present control of the amount of power injected into the power system 3 by setting the control power amount to a power amount smaller than the above difference is also conceivable.

ステップＳ５２４では、地上受信局２の送受電部２７２は、ステップＳ５２３における計算により決められた制御電力量を送受信部２０２に送る。送受信部２０２は、電力無線中継装置１に制御電力量を含む制御指令信号１０２を送信する。   In step S524, the power transmission / reception unit 272 of the ground receiving station 2 transmits the control power amount determined by the calculation in step S523 to the transmission / reception unit 202. The transmission / reception unit 202 transmits a control command signal 102 including a control power amount to the power wireless relay device 1.

ステップＳ５１１において、電力無線中継装置１の送受信部２０１は、地上受信局２からの制御指令信号１０２を受け取る。ステップＳ５１２において、電力無線中継装置１の送受信部２０１は、受け取った制御指令信号１０２に基づき、地上受信局２へ中継する電力量を、その制御指令信号１０２に含まれる制御電力量に変更する。   In step S <b> 511, the transmission / reception unit 201 of the power wireless relay device 1 receives the control command signal 102 from the ground receiving station 2. In step S <b> 512, the transmission / reception unit 201 of the power wireless relay device 1 changes the power amount to be relayed to the ground receiving station 2 to the control power amount included in the control command signal 102 based on the received control command signal 102.

ステップＳ５２５において、地上受信局２の送受信部２０２は、電力無線中継装置１から電力を受け取る。送受電部２７２は、送受信部２０２が受け取った電力を、送電線４を介して電力系統３へ供給する。その際、送受電部２７２からの電力と、太陽光発電地上設備１０の太陽光発電力とが合成されて得られる合成電力が、電力系統３へ供給される。地上受信局２での処理は、ステップＳ５２１に戻る。   In step S525, the transmission / reception unit 202 of the ground receiving station 2 receives power from the power wireless relay device 1. The power transmission / reception unit 272 supplies the power received by the transmission / reception unit 202 to the power system 3 via the power transmission line 4. At that time, the combined power obtained by combining the power from the power transmission / reception unit 272 and the solar power generated by the photovoltaic power generation ground facility 10 is supplied to the power system 3. The processing at the ground receiving station 2 returns to step S521.

第１の実施の形態における電力系統内送電状態制御方法によると、地上受信局（端局）２の送受電部２７２が、電力系統３内の送電状態の変化を検出する。検出された送電状態の変化に基づき、電力系統３に接続された地上受信局（端局）２から宇宙空間に配置された電力無線中継装置１へ制御指令信号１０２を、地上受信局２の送受信部２０２が送信する。電力無線中継装置１の発電部２３１が、送受信部２０１によって受信された制御信号に応じて、電力を取得するとともに、取得した電力を変換部２５１が電磁波に変換して送受信部２０１が地上受信局２へ中継することによって、送電状態の変化に対応する。送電状態の変化は、電力系統３に接続された太陽光発電地上設備１０から電力系統３へ供給される太陽光発電量の変動である。制御指令信号１０２は、変動する太陽光発電地上設備１０の太陽光発電量と、電力無線中継装置１の発電部２３１によって取得される電力の電力量との和が略一定値となるように、電力無線中継装置１の発電部２３１に電力を取得させる指示を含む。電力無線中継装置１の発電部２３１によって取得された電力が送受信部２０１によって地上受信局２に中継される際に変換されて得られた電磁波１０１は、地上受信局（端局）２の変換部２５２によって電力に逆変換される。地上受信局（端局）２の変換部２５２によって電磁波１０１が逆変換されて得られた電力と、変動する太陽光発電量を示す太陽光発電地上設備１０の太陽光発電力とを合成して得られる合成電力を、地上受信局（端局）２の送受電部２７２が電力系統３へ供給する。   According to the power transmission state control method in the power system in the first embodiment, the power transmission / reception unit 272 of the ground receiving station (terminal station) 2 detects a change in the power transmission state in the power system 3. Based on the detected change in the power transmission state, a control command signal 102 is transmitted from the ground receiving station (terminal station) 2 connected to the power system 3 to the power wireless relay device 1 arranged in the space, and transmitted / received by the ground receiving station 2 The unit 202 transmits. The power generation unit 231 of the power wireless relay device 1 acquires power according to the control signal received by the transmission / reception unit 201, and the conversion unit 251 converts the acquired power into an electromagnetic wave so that the transmission / reception unit 201 is a ground receiving station. By relaying to 2, it responds to a change in the power transmission state. The change in the power transmission state is a change in the amount of photovoltaic power supplied from the photovoltaic power generation ground facility 10 connected to the power grid 3 to the power grid 3. The control command signal 102 is such that the sum of the photovoltaic power generation amount of the photovoltaic power generation ground facility 10 that fluctuates and the power amount of power acquired by the power generation unit 231 of the power wireless relay device 1 becomes a substantially constant value. The power generation unit 231 of the power wireless relay device 1 includes an instruction to acquire power. The electromagnetic wave 101 obtained by conversion when the power acquired by the power generation unit 231 of the power wireless relay device 1 is relayed to the ground reception station 2 by the transmission / reception unit 201 is converted into the conversion unit of the ground reception station (terminal station) 2. 252 is converted back to electric power. The power obtained by reversely converting the electromagnetic wave 101 by the conversion unit 252 of the ground receiving station (terminal station) 2 is combined with the solar power generated by the solar power ground equipment 10 indicating the amount of photovoltaic power generation that fluctuates. The power transmission / reception unit 272 of the ground receiving station (terminal station) 2 supplies the resultant combined power to the power system 3.

このような電力系統内送電状態制御方法は、電力系統に接続された太陽光発電地上設備１０から電力系統３へ供給される太陽光発電量の変動に対して柔軟な電力系統内送電状態制御を実現するという作用効果を奏する。   Such a power transmission state control method in the power system performs flexible power transmission state control in the power system with respect to fluctuations in the amount of photovoltaic power supplied to the power system 3 from the photovoltaic power generation ground equipment 10 connected to the power system. There is an effect of realizing.

なお、電力無線中継装置１は、宇宙空間に配置される太陽光発電設備であって、発電部２３１が太陽光を受光して自家発電することにより電力を取得し、自家発電によって取得した電力を電磁波１０１に変換して地上受信局２に向けて送信することとした。しかし、電力無線中継装置１は自家発電せずに、他の電力無線中継装置や地上受信局から電力を取得し、こうして取得した電力を電磁波１０１に変換して地上受信局２に向けて送信することとしてもよい。   Note that the power wireless relay device 1 is a photovoltaic power generation facility disposed in outer space, and the power generation unit 231 receives sunlight to generate power by self-power generation, and acquires power acquired by self-power generation. The electromagnetic wave 101 is converted and transmitted to the ground receiving station 2. However, the power wireless relay device 1 acquires power from other power wireless relay devices or ground receiving stations without generating power on its own, and converts the power thus acquired into an electromagnetic wave 101 and transmits it to the ground receiving station 2. It is good as well.

−−−第２の実施の形態−−−
図２は、本発明の第２の実施の形態における電力系統内送電状態制御方法を説明するための図である。第１の実施の形態における電力系統内送電状態制御方法との共通部分については、説明を省略する。本実施の形態における電力系統内送電状態制御方法においては、地上受信局（端局）２ａまたは２ｂから宇宙空間に配置される電力無線中継装置１に対して、電磁波１０３ａまたは１０３ｂを送ることによって、電力系統３から得られた系統電力を送電する。電力無線中継装置１は、制御指令信号１０２ａまたは１０２ｂを受信すると、それらの制御指令信号１０２ａまたは１０２ｂに応じて、系統電力を電磁波１０３ａまたは１０３ｂとして取得する。電力無線中継装置１は、電磁波１０３ａまたは１０３ｂとして取得した系統電力を、電磁波１０１ｂまたは１０１ａとして地上受信局２ｂまたは２ａに中継する。以下に詳細を説明する。 --- Second Embodiment ---
FIG. 2 is a diagram for explaining a power transmission state control method in an electric power system according to the second embodiment of the present invention. The description of the common parts with the power transmission state control method in the power system in the first embodiment is omitted. In the power transmission state control method in the power system in the present embodiment, by transmitting the electromagnetic wave 103a or 103b from the ground receiving station (terminal station) 2a or 2b to the power wireless relay device 1 arranged in the space, System power obtained from the power system 3 is transmitted. When receiving the control command signal 102a or 102b, the power wireless relay device 1 acquires the system power as the electromagnetic wave 103a or 103b in accordance with the control command signal 102a or 102b. The power wireless relay device 1 relays the system power acquired as the electromagnetic wave 103a or 103b to the ground receiving station 2b or 2a as the electromagnetic wave 101b or 101a. Details will be described below.

図２に示すように、電力系統３内に互いに異なる電力網３０ａと電力網３０ｂとが含まれている。電力網３０ａには地上受信局（端局）２ａが電力線４ａを介して接続され、電力網３０ｂには地上受信局（端局）２ｂが電力線４ｂを介して接続される。電力網３０ａにおける余剰電力の発生が、電力系統３内の送電状態の変化として、地上受信局２ａの送受電部２７２ａによって検出される。電力網３０ｂにおける不足電力の発生が、電力系統３内の送電状態の変化として、地上受信局２ｂの送受電部２７２ｂによって検出される。   As shown in FIG. 2, the power grid 3 includes different power networks 30 a and 30 b. A ground receiving station (terminal station) 2a is connected to the power network 30a via a power line 4a, and a ground receiving station (terminal station) 2b is connected to the power network 30b via a power line 4b. Generation of surplus power in the power network 30a is detected by the power transmission / reception unit 272a of the ground receiving station 2a as a change in the power transmission state in the power system 3. The occurrence of insufficient power in the power network 30b is detected by the power transmission / reception unit 272b of the ground receiving station 2b as a change in the power transmission state in the power system 3.

電力網３０ａにおける余剰電力から取り出された電力が、不足電力の発生した電力網３０ｂへ供給される例について説明する。地上受信局２ａの送受信部２０２ａは、電力無線中継装置１に制御指令信号１０２ａを送信する。制御指令信号１０２ａは、電力網３０ａにおける余剰電力から取り出される電力が、電力網３０ａから他の電力網へ送電されるように、電力無線中継装置１に電力を中継させる指示を含む。地上受信局２ｂの送受信部２０２ｂは、電力無線中継装置１に制御指令信号１０２ｂを送信する。制御指令信号１０２ｂは、他の電力網から電力網３０ｂへ送電されるように、電力無線中継装置１に電力を中継させる指示を含む。電力無線中継装置１の送受信部２０１は、制御指令信号１０２ａおよび１０２ｂを受信するとともに、電力網３０ａにおける余剰電力を電磁波１０３ａとして取得し、取得した余剰電力から第２電力網へ送電する電力を取り出す。電力無線中継装置１の送受信部２０１は、取り出した電力を電磁波１０１ｂとして地上受信局２ｂの送受信部２０２ｂへ送信し、地上受信局２ｂの変換部２５２ｂによる逆変換によって得られた電力を、送受電部２７２ｂが送電線４ｂを介して第２電力網へ供給する。   An example will be described in which power extracted from surplus power in the power network 30a is supplied to the power network 30b in which insufficient power is generated. The transmission / reception unit 202a of the ground receiving station 2a transmits a control command signal 102a to the power wireless relay device 1. The control command signal 102a includes an instruction for causing the power wireless relay device 1 to relay power so that power extracted from surplus power in the power network 30a is transmitted from the power network 30a to another power network. The transmission / reception unit 202b of the ground receiving station 2b transmits a control command signal 102b to the power wireless relay device 1. The control command signal 102b includes an instruction to cause the power wireless relay device 1 to relay power so that power is transmitted from another power network to the power network 30b. The transmission / reception unit 201 of the power wireless relay device 1 receives the control command signals 102a and 102b, acquires the surplus power in the power network 30a as the electromagnetic wave 103a, and extracts the power transmitted from the acquired surplus power to the second power network. The transmission / reception unit 201 of the power wireless relay device 1 transmits the extracted power as the electromagnetic wave 101b to the transmission / reception unit 202b of the ground reception station 2b, and transmits and receives the power obtained by the inverse conversion by the conversion unit 252b of the ground reception station 2b. The unit 272b supplies the second power grid via the power transmission line 4b.

電力網３０ｂにおける余剰電力から取り出された電力が、不足電力の発生した電力網３０ａへ供給される例についても同様なので、説明を省略する。   The same applies to an example in which power extracted from surplus power in the power network 30b is supplied to the power network 30a in which insufficient power is generated, and a description thereof will be omitted.

電力無線中継装置１から地上受信局２ａまたは２ｂへの電磁波１０１ａおよび１０３ａまたは電磁波１０３ｂおよび１０１ｂは必ずしもこの構成では両方ともに必須ということではなく、必要に応じて電磁波１０１ａおよび１０３ａのいずれかあるいは両方、または電磁波１０３ｂおよび１０１ｂのいずれかあるいは両方がやり取りされる。   The electromagnetic waves 101a and 103a or the electromagnetic waves 103b and 101b from the power wireless relay device 1 to the ground receiving station 2a or 2b are not necessarily essential in this configuration, and either or both of the electromagnetic waves 101a and 103a as necessary. Alternatively, either or both of the electromagnetic waves 103b and 101b are exchanged.

第２の実施の形態における電力系統内送電状態制御方法によると、地上受信局（端局）２ａは、電力系統３内の電力網３０ａに接続された地上受信局（端局）２ａと、電力系統３内の電力網３０ａとは異なる電力網３０ｂに接続された地上受信局（端局）２ｂとを含む。送電状態の変化は、電力網３０ａにおける余剰電力の発生および電力網３０ｂにおける不足電力の発生である。制御指令信号１０２ａおよび制御しれ信号１０２ｂは、電力網３０ａにおける余剰電力から取り出される電力が、電力網３０ａから電力網３０ｂへ送電されるように、電力無線中継装置１に電力を地上受信局２ｂへ中継させる指示を含む。電力無線中継装置１によって取得される電力は、電力網３０ａにおける余剰電力から取り出されるとともに、電力網３０ｂに供給される。   According to the power transmission state control method in the power system in the second embodiment, the ground receiving station (terminal station) 2a is connected to the ground receiving station (terminal station) 2a connected to the power network 30a in the power system 3, and the power system. 3 includes a ground receiving station (terminal station) 2b connected to a power network 30b different from the power network 30a. The change in the power transmission state is generation of surplus power in the power network 30a and generation of insufficient power in the power network 30b. The control command signal 102a and the control signal 102b are instructions for causing the power wireless relay device 1 to relay power to the ground receiving station 2b so that power extracted from surplus power in the power network 30a is transmitted from the power network 30a to the power network 30b. including. The power acquired by the power wireless relay device 1 is extracted from surplus power in the power network 30a and supplied to the power network 30b.

これにより、地上受信局２ａおよび２ｂ間に物理的な送電線をつなぐことなく電力のやり取りが可能となる。特に遠距離や、離島等のように送電線の建設コストが高い場合のこの方式は有効となる。また、地上受信局２ａおよび２ｂを需要地の近傍に設置することにより、やはり、送電線の建設コストの低減が図れる。また、地上受信局２ａおよび２ｂが互いに別々の周波数の電力系統に接続されている場合に、異なる周波数間の電力融通が、従来の周波数変換所や直流送電設備無しで実現できる。   As a result, power can be exchanged without connecting a physical power transmission line between the ground receiving stations 2a and 2b. This method is particularly effective when the construction cost of transmission lines is high, such as over long distances or remote islands. Further, by installing the ground receiving stations 2a and 2b in the vicinity of the demand place, the construction cost of the transmission line can be reduced. Further, when the ground receiving stations 2a and 2b are connected to power systems having different frequencies, power interchange between different frequencies can be realized without a conventional frequency conversion station or DC power transmission equipment.

−−−第３の実施の形態−−−
図３は、本発明の第３の形態における電力系統内送電状態制御方法を説明するための図である。第１および第２の実施の形態における電力系統内送電状態制御方法との共通部分については、説明を省略する。電力系統３で事故（外乱）が発生した場合、事故のエネルギーによる動揺が電力系統３内に発生し、そのため同期運転している発電機間に動揺が発生する。この電力動揺が大きくなると、発電機の同期運転が出来なくなるため、従来は同期はずれを起こす前に最適な発電機を電力系統から切り離す制御を行っていた。本実施の形態における電力系統内送電状態制御方法では、電力系統３の事故２０の情報１０４を１つあるいは複数の地上受信局（端局）２に伝送し、地上受信局２から宇宙空間に配置された電力無線中継装置１へ制御指令信号１０２が送信される。この制御指令信号１０２に応じて、電力無線中継装置１の発電部２３１によって発電され、変換部２５１によって電磁波１０１に変換される発電電力を変化させて電力系統３の安定化を図れるように、制御指令１０２が送信される。 --- Third embodiment ---
FIG. 3 is a diagram for explaining a power transmission state control method in the electric power system according to the third embodiment of the present invention. The description of the common parts with the power transmission state control method in the power system in the first and second embodiments is omitted. When an accident (disturbance) occurs in the electric power system 3, a fluctuation due to the energy of the accident occurs in the electric power system 3, and thus a fluctuation occurs between the generators that are operating synchronously. If this power fluctuation becomes large, the generator cannot be operated synchronously. Conventionally, the optimal generator is controlled to be disconnected from the power system before the synchronization is lost. In the power transmission state control method in the power system according to the present embodiment, the information 104 of the accident 20 in the power system 3 is transmitted to one or a plurality of ground receiving stations (terminal stations) 2 and arranged in space from the ground receiving station 2. The control command signal 102 is transmitted to the power wireless relay device 1 that has been made. In accordance with the control command signal 102, control is performed so that the power system 3 can be stabilized by changing the generated power generated by the power generation unit 231 of the power wireless relay device 1 and converted into the electromagnetic wave 101 by the conversion unit 251. Command 102 is transmitted.

第３の実施の形態における電力系統内送電状態制御方法によると、電力無線中継装置１の発電部２３１は、送受信部２０１が受信した制御指令信号１０２に応じて、太陽光発電（自家発電）により電力を取得する。変換部２５１は、発電部２３１によって取得された電力を電磁波１０１に変換する。電力無線中継装置１の送受信部２０１によって地上受信局（端局）２に中継される電磁波１０１が、地上受信局２の送受信部２０１によって受信されるとともに、変換部２５２によって逆変換されることによって得られる電力が、電力系統３に供給される。送電状態の変化は、電力系統３内における外乱の発生である。制御指令信号１０２は、外乱に伴う電力系統３内の電力動揺を抑制するように、電力無線中継装置１の発電部２３１によって取得される電力の電力量を、外乱に応じて予め定められた電力量に抑制する指示を含む。外乱に応じて予め定められた電力量とは、実データを用いたシミュレーション等に基づき、外乱発生箇所に応じて定められ、不図示のテーブルに登録される。外乱に応じて予め定められた電力量は、電力動揺が抑制されるにつれて、緩和されて増加していく。本実施の形態における電力系統内送電状態制御方法の利点として、従来の発電機を切り離す方式に比べ、電力系統３への影響が少なく制御できる。   According to the power transmission state control method in the power system in the third embodiment, the power generation unit 231 of the power wireless relay device 1 performs solar power generation (in-house power generation) according to the control command signal 102 received by the transmission / reception unit 201. Get power. The converter 251 converts the electric power acquired by the power generator 231 into the electromagnetic wave 101. The electromagnetic wave 101 relayed to the ground receiving station (terminal station) 2 by the transmitting / receiving unit 201 of the power wireless relay device 1 is received by the transmitting / receiving unit 201 of the ground receiving station 2 and is inversely converted by the converting unit 252. The obtained electric power is supplied to the electric power system 3. The change in the power transmission state is the occurrence of a disturbance in the power system 3. The control command signal 102 is a power that is determined in advance according to the disturbance so that the amount of power acquired by the power generation unit 231 of the power wireless relay device 1 is suppressed so as to suppress power fluctuation in the power system 3 due to the disturbance. Includes instructions to limit the amount. The electric energy determined in advance according to the disturbance is determined according to the location of the disturbance based on a simulation using actual data, and is registered in a table (not shown). The amount of power determined in advance according to the disturbance is relaxed and increased as the power fluctuation is suppressed. As an advantage of the power transmission state control method in the power system according to the present embodiment, control can be performed with less influence on the power system 3 as compared with the conventional method of disconnecting the generator.

−−−変形例−−−
図４は、第３の実施の形態の変形例における電力系統内送電状態制御方法を説明するための図である。電力系統の事故（外乱）２０により電力系統が分離するような事故が発生した場合、従来は一方の分離系統は発電量が余剰となるため発電機を系統から切り離し、他方の分離系統は需要量が余剰となるため負荷を切り離す制御を行っていた。 ---- Modified example ---
FIG. 4 is a diagram for explaining a power transmission state control method in the power system according to a modification of the third embodiment. When an accident occurs that causes the power system to be separated due to a power system accident (disturbance) 20, conventionally, one of the separated systems has a surplus in power generation, so the generator is disconnected from the system, and the other separated system has a demand amount. Because it becomes surplus, the control which isolate | separates a load was performed.

本変形例における電力系統内送電状態制御方法によると、事故（外乱）２０によって電力系統３が、余剰電力の発生している分離系統３５ａと不足電力の発生している分離系統３５ｂとに分離されたとき、制御指令信号１０２ａは、分離系統３５ａから分離系統３５ｂへ送電されるように、電力無線中継装置１に電力を中継させる指示をさらに含む。電力無線中継装置１によって取得される電力は、分離系統３５ａにおける余剰電力から取り出されるとともに、分離系統３５ｂに供給される。   According to the power transmission state control method in the power system in this modification, the power system 3 is separated into the separated system 35a where surplus power is generated and the separated system 35b where insufficient power is generated due to the accident (disturbance) 20. Then, the control command signal 102a further includes an instruction to relay power to the power wireless relay device 1 so that power is transmitted from the separation system 35a to the separation system 35b. The power acquired by the power wireless relay device 1 is extracted from surplus power in the separation system 35a and supplied to the separation system 35b.

具体的には、分離系統３５ａで余剰電力が発生していることが、電力系統３の事故（外乱）２０の情報１０４ａが電力線４ａを介して伝送された地上受信局２ａの送受電部２７２ａによって検出されると、送受信部２０２ａは、電力無線中継装置１に制御指令信号１０２ａを送信する。分離系統３５ｂで不足電力が発生していることが、電力系統３の事故（外乱）２０の情報１０４ｂが電力線４ｂを介して伝送された地上受信局２ｂの送受電部２７２ｂによって検出されると、送受信部２０２ｂは、電力無線中継装置１に制御指令信号１０２ｂを送信する。制御指令信号１０２ａおよび１０２ｂは、分離系統３５ａから分離系統３５ｂへ送電されるように、電力無線中継装置１に電力を地上受信局２ｂに中継させる指示を含む。電力無線中継装置１の送受信部２０１は、制御指令信号１０２ａおよび１０２ｂを受信すると、分離系統３５ａの余剰電力を電磁波１０３ａとして取得し、取得した余剰電力から分離系統３５ｂへ送電する電力を取り出す。電力無線中継装置１の送受信部２０１は、取り出した電力を電磁波１０１ｂとして地上受信局２ｂの送受信部２０２ｂへ送信し、地上受信局２ｂの変換部２５２ｂによる逆変換によって得られた電力を、送受電部２７２ｂが送電線４ｂを介して分離系統３５ｂへ供給することにより、分離系統３５ｂの不足電力が補われる。このようにして、電力の過不足量を調整するように制御することが可能となる。本変形例の利点として、電力系統３における発電量や負荷の遮断を行わずに系統の安定化を図ることができる。   Specifically, surplus power is generated in the separation system 35a by the power transmission / reception unit 272a of the ground receiving station 2a to which the information 104a of the accident (disturbance) 20 of the power system 3 is transmitted through the power line 4a. When detected, the transmission / reception unit 202 a transmits a control command signal 102 a to the power wireless relay device 1. When it is detected by the power transmission / reception unit 272b of the ground receiving station 2b that the information 104b of the accident (disturbance) 20 of the power system 3 is transmitted via the power line 4b, it is detected that insufficient power is generated in the separation system 35b. The transmission / reception unit 202b transmits a control command signal 102b to the power wireless relay device 1. Control command signals 102a and 102b include an instruction to cause power wireless relay device 1 to relay power to ground receiving station 2b so that power is transmitted from separation system 35a to separation system 35b. When receiving the control command signals 102a and 102b, the transmission / reception unit 201 of the power wireless relay device 1 acquires the surplus power of the separation system 35a as the electromagnetic wave 103a, and extracts the power transmitted from the acquired surplus power to the separation system 35b. The transmission / reception unit 201 of the power wireless relay device 1 transmits the extracted power as the electromagnetic wave 101b to the transmission / reception unit 202b of the ground reception station 2b, and transmits and receives the power obtained by the inverse conversion by the conversion unit 252b of the ground reception station 2b. By supplying the part 272b to the separation system 35b through the power transmission line 4b, the insufficient power of the separation system 35b is compensated. In this way, it is possible to perform control so as to adjust the excess or deficiency of power. As an advantage of this modification, it is possible to stabilize the system without shutting off the power generation amount and the load in the power system 3.

１ 電力無線中継装置、２ 地上受信局（端局）、３ 電力系統、４ 送電線、１０ 太陽光発電地上設備、１０１ 電磁波、１０２ 制御指令信号、１０３ 電磁波、１０４ 情報、２０１ 送受信部（電力無線中継装置側）、２０２ 送受信部（地上受信局側）、２３１ 発電部、２５１ 変換部、２５２ 変換部、２７２ 送受電部、 DESCRIPTION OF SYMBOLS 1 Power wireless relay apparatus, 2 Ground receiving station (terminal station), 3 Power system, 4 Transmission line, 10 Solar power ground equipment, 101 Electromagnetic wave, 102 Control command signal, 103 Electromagnetic wave, 104 Information, 201 Transmission / reception part (power wireless Relay device side), 202 transmission / reception unit (ground reception station side), 231 power generation unit, 251 conversion unit, 252 conversion unit, 272 power transmission / reception unit,

Claims (6)

電力系統内の送電状態の変化を検出し、
検出された前記送電状態の前記変化に基づき、前記電力系統に接続された地上の端局から宇宙空間に配置された電力無線中継装置へ制御信号を送信し、
前記電力無線中継装置が、前記制御信号に応じて、電力を取得するとともに、取得した前記電力を前記端局へ中継することによって、前記送電状態の前記変化に対応することを特徴とする電力系統内送電状態制御方法。 Detect changes in the power transmission state in the power grid,
Based on the detected change in the power transmission state, a control signal is transmitted from a ground terminal station connected to the power system to a power wireless relay device disposed in outer space,
The power wireless relay device acquires power according to the control signal, and relays the acquired power to the terminal station to cope with the change in the power transmission state. Internal power transmission state control method. 請求項１に記載の電力系統内送電状態制御方法において、
前記電力無線中継装置は、前記制御信号に応じて、自家発電により前記電力を取得するとともに、取得した前記電力を電磁波に変換し、
前記電力無線中継装置によって前記端局に中継される前記電磁波が、前記端局によって逆変換されることによって得られる前記電力が、前記電力系統に供給され、
前記送電状態の前記変化は、前記電力系統内における外乱の発生であり、
前記制御信号は、前記外乱に伴う前記電力系統内の電力動揺を抑制するように、前記電力無線中継装置によって取得される前記電力の電力量を、前記外乱に応じて予め定められた電力量に抑制する指示を含むことを特徴とする電力系統内送電状態制御方法。 In the electric power system power transmission state control method according to claim 1,
In response to the control signal, the power wireless relay device acquires the power by private power generation, converts the acquired power to electromagnetic waves,
The electromagnetic wave relayed to the terminal station by the power wireless relay device, the power obtained by being reversely converted by the terminal station, is supplied to the power system,
The change in the power transmission state is the occurrence of a disturbance in the power system,
The control signal sets the power amount of the power acquired by the power wireless relay device to a predetermined power amount according to the disturbance so as to suppress power fluctuations in the power system due to the disturbance. A power transmission state control method in a power system, comprising an instruction to suppress. 請求項２に記載の電力系統内送電状態制御方法において、
前記外乱によって前記電力系統が、余剰電力の発生している第１分離系統と不足電力の発生している第２分離系統とに分離されたとき、前記制御信号は、前記第１分離系統から前記第２分離系統へ送電されるように、前記電力無線中継装置に前記電力を前記端局へ中継させる指示をさらに含み、
前記電力無線中継装置によって取得される前記電力は、前記第１分離系統における前記余剰電力から取り出されるとともに、前記第２分離系統に供給されることを特徴とする電力系統内送電状態制御方法。 In the electric power system power transmission state control method according to claim 2,
When the power system is separated into a first separated system where surplus power is generated and a second separated system where insufficient power is generated due to the disturbance, the control signal is transmitted from the first separated system to the first separated system. The power wireless relay device further includes an instruction to relay the power to the terminal station so that the power is transmitted to the second separated system,
The power transmission state control method in the power system, wherein the power acquired by the power wireless relay device is extracted from the surplus power in the first separation system and supplied to the second separation system. 請求項１に記載の電力系統内送電状態制御方法において、
前記端局は、前記電力系統内の第１電力網に接続された第１端局と、前記電力系統内の前記第１電力網とは異なる第２電力網に接続された第２端局とを含み、
前記送電状態の前記変化は、前記第１電力網における余剰電力の発生および前記第２電力網における不足電力の発生であり、
前記制御信号は、前記第１電力網から前記第２電力網へ送電されるように、前記電力無線中継装置に前記電力を前記第２端局へ中継させる指示を含み、
前記電力無線中継装置によって取得される前記電力は、前記第１電力網における前記余剰電力から取り出されるとともに、前記第２電力網に供給されることを特徴とする電力系統内送電状態制御方法。 In the electric power system power transmission state control method according to claim 1,
The terminal station includes a first terminal station connected to a first power network in the power system and a second terminal station connected to a second power network different from the first power network in the power system,
The change in the power transmission state is generation of surplus power in the first power network and generation of insufficient power in the second power network,
The control signal includes an instruction to cause the power wireless relay device to relay the power to the second terminal so that power is transmitted from the first power network to the second power network,
The power transmission state control method in a power system, wherein the power acquired by the power wireless relay device is extracted from the surplus power in the first power network and supplied to the second power network. 請求項１に記載の電力系統内送電状態制御方法において、
前記送電状態の前記変化は、前記電力系統に接続された地上の太陽光発電設備から前記電力系統へ供給される太陽光発電量の変動であり、
前記制御信号は、変動する前記太陽光発電量と、前記電力無線中継装置によって取得される前記電力の電力量との和が略一定値となるように、前記電力無線中継装置に前記電力を取得させる指示を含み、
前記電力無線中継装置によって取得された前記電力が前記端局に中継される際に変換されて得られた前記電磁波は、前記端局によって前記電力に逆変換され、
前記端局によって前記電磁波が逆変換されて得られた前記電力と、変動する前記太陽光発電量を示す太陽光発電電力とを合成して得られる合成電力を、前記電力系統へ供給することを特徴とする電力系統内送電状態制御方法。 In the electric power system power transmission state control method according to claim 1,
The change in the power transmission state is a change in the amount of photovoltaic power supplied from the ground photovoltaic power generation facility connected to the power grid to the power grid,
The control signal acquires the power to the power wireless relay device so that a sum of the amount of photovoltaic power generation that fluctuates and the amount of power of the power acquired by the power wireless relay device becomes a substantially constant value. Including instructions to
The electromagnetic wave obtained by being converted when the power acquired by the power wireless relay device is relayed to the terminal station is inversely converted to the power by the terminal station,
Supplying the electric power system with combined power obtained by combining the electric power obtained by reversely converting the electromagnetic wave by the terminal station and the photovoltaic power generation power indicating the fluctuating solar power generation amount. A power transmission state control method in a power system as a feature. 請求項５に記載の電力系統内送電状態制御方法において、
前記電力無線中継装置は、前記制御信号に応じて、自家発電により前記電力を取得することを特徴とする電力系統内送電状態制御方法。 In the electric power system power transmission state control method according to claim 5,
The power wireless relay device acquires the power by private power generation according to the control signal.
JP2012138587A 2012-06-20 2012-06-20 Control method of power transmission state in power system Pending JP2014003839A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018530292A (en) * 2015-09-10 2018-10-11 シーピージー テクノロジーズ、 エルエルシーＣｐｇ Ｔｅｃｈｎｏｌｏｇｉｅｓ， Ｌｌｃ Flexible network topology and bidirectional power flow

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018530292A (en) * 2015-09-10 2018-10-11 シーピージー テクノロジーズ、 エルエルシーＣｐｇ Ｔｅｃｈｎｏｌｏｇｉｅｓ， Ｌｌｃ Flexible network topology and bidirectional power flow

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