JP2019062620A - Power monitoring control system, power monitoring control power supply device, and power monitoring control device - Google Patents

Power monitoring control system, power monitoring control power supply device, and power monitoring control device Download PDF

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JP2019062620A
JP2019062620A JP2017184486A JP2017184486A JP2019062620A JP 2019062620 A JP2019062620 A JP 2019062620A JP 2017184486 A JP2017184486 A JP 2017184486A JP 2017184486 A JP2017184486 A JP 2017184486A JP 2019062620 A JP2019062620 A JP 2019062620A
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power
power supply
transmission
monitoring
control
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博則 市川
Hironori Ichikawa
博則 市川
正和 東野
Masakazu Tono
正和 東野
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Toshiba Corp
Toshiba Infrastructure Systems and Solutions Corp
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Toshiba Corp
Toshiba Infrastructure Systems and Solutions Corp
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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
    • 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
    • Y04S40/121—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 the power network as support for the transmission

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Abstract

To provide a power monitoring control system in which the number of transmission cables can be reduced, a power monitoring control power supply device, and a power monitoring control device.SOLUTION: A power monitoring control power supply device 2 includes a first transmission/reception unit that transmits/receives a transmission signal from/to a central monitoring device 7 for monitoring power, a power supply voltage output unit that supplies power supply voltage, and a second transmission/reception unit that, on the basis of the transmission signal transmitted/received by the first transmission/reception unit to/from the central monitoring device 7, superimposes the transmission signal on the power supply voltage supplied from the power supply voltage output unit and transmits/receives the transmission signal by power line carrying. Power monitoring control devices 3a to 3n each include a third transmission/reception unit that receives supply of the power supply voltage from the power monitoring control power supply device 2, and performs transmission/reception by power line carrying through the transmission signal superposed on the power supply voltage, and an input/output unit that controls monitoring of power receiving and distributing facilities 6a to 6n on the basis of a transmission signal transmitted/received by the third transmission/reception unit.SELECTED DRAWING: Figure 1

Description

本実施形態は電力系統の監視を行う電力監視制御システム、電力監視制御用電源装置および電力監視制御装置に関する。   The present embodiment relates to a power monitoring control system that monitors a power system, a power monitoring control power supply device, and a power monitoring control device.

電力を安定供給するために電力系統に電力監視制御装置が設置される。この種の電力監視制御装置としては、送変電設備の電気量を計測し、電力系統に設置された各受配電設備機器および電力系統の故障を検出する電力監視制御装置が知られている。   A power monitoring and control device is installed in the power system to stably supply power. As this type of power monitoring and control apparatus, there is known a power monitoring and control apparatus that measures the amount of electricity of transmission and transformation equipment and detects failures of each power receiving and distribution equipment installed in the power system and the power system.

特開２０１６−０２５７９９公報Japanese Patent Application Laid-Open No. 2016-025799 特開２００６−０１３７０３公報Japanese Patent Application Laid-Open No. 2006-013703 特開２００２−２３３０８２公報Japanese Patent Application Publication No. 2002-233082 特開２０００−０４８９６９公報JP 2000-048969

電力監視制御装置は、電力を安定供給するため、電力系統に設置された各受配電設備機器および電力系統（以降、受配電設備と総称するものとする）の故障を検出する。電力監視制御装置において受配電設備の故障が検出された場合、故障が発生した旨の信号が、中央監視装置に送信される。また、中央監視装置から、故障に対応する指示が、電力監視制御装置に送信される。   The power monitoring and control apparatus detects a failure of each power receiving and distributing equipment installed in the power grid and the power grid (hereinafter collectively referred to as power receiving and distribution equipment) in order to stably supply power. When a failure of the power distribution and distribution facility is detected in the power monitoring and control device, a signal indicating that the failure has occurred is transmitted to the central monitoring device. In addition, an instruction corresponding to the failure is transmitted from the central monitoring device to the power monitoring and control device.

しかしながら、電力監視制御装置と中央監視装置間の伝送は、一般的には専用線である伝送用ケーブルを介して行われる。電力監視制御装置は、複数の受配電設備の状態、故障、計測値の監視を行うとともに、制御を行う。さらに、一つの電力監視制御システムは、通常複数の電力監視制御装置を備える。その結果、電力監視制御装置と中央監視装置間の伝送を行うために、多数の伝送用ケーブルが用いられる。   However, the transmission between the power monitoring and control unit and the central monitoring unit is performed via a transmission cable, which is generally a dedicated line. The power monitoring and control apparatus monitors and controls the states, failures, and measured values of the plurality of power distribution and distribution facilities. Furthermore, one power monitoring and control system usually comprises a plurality of power monitoring and control devices. As a result, multiple transmission cables are used to transmit between the power monitoring and control device and the central monitoring device.

従来の電力監視制御システムには、多数の伝送用ケーブルが用いられるため、ケーブルの材料費のみならず、ケーブルの施工、ケーブルを敷設するためのケーブルラックやケーブルピット等の施工等に多くのコストおよび作業が必要とされる、との問題点があった。   Since a large number of transmission cables are used in the conventional power monitoring and control system, not only the material cost of the cables but also the cost of construction of cables, construction of cable racks and cable pits for laying cables, etc. And the work is required, there was a problem with it.

また、多数の伝送用ケーブルが用いられるため、伝送用ケーブルにおける断線等の故障頻度が高くなることが懸念される。伝送用ケーブルの故障が発生した場合、電力監視制御装置と中央監視装置間の伝送を行うことができなくなり、その結果、電力監視制御装置に対し、伝送による適切な指示を行うことができなくなる。また、多数の伝送用ケーブルが用いられるため、故障個所を特定するのに時間と手間を要する。多数の伝送用ケーブルが用いられることにより、伝送用ケーブルの故障頻度が高くなる、ケーブルの修理に多大な時間と手間が必要とされる、との問題点があった。   In addition, since a large number of transmission cables are used, there is a concern that the frequency of failures such as disconnection in the transmission cables may be increased. If a failure occurs in the transmission cable, transmission can not be performed between the power monitoring control device and the central monitoring device, and as a result, the power monitoring control device can not be appropriately instructed by transmission. In addition, since a large number of transmission cables are used, it takes time and effort to identify a failure point. The use of a large number of transmission cables increases the frequency of failure of the transmission cables, and the repair of the cables requires a lot of time and effort.

本実施形態は、上記問題点を解決するために、伝送用ケーブルの数量を軽減することができる電力監視制御システム、電力監視制御用電源装置、電力監視制御装置を提供することを目的とする。   An object of the present embodiment is to provide a power monitoring control system, a power monitoring control power supply device, and a power monitoring control device capable of reducing the number of transmission cables in order to solve the above problems.

本実施形態の電力監視制御システムは、次のような構成を有することを特徴とする。
（１）次のような構成を備えた電力監視制御用電源装置。
（１−１）電力の監視を行う中央監視装置と伝送信号の送受信を行う第１の送受信部。
（１−２）電源電圧の供給を行う電源電圧出力部。
（１−３）第１の送受信部により送受信された中央監視装置との伝送信号に基づき、電源電圧出力部により供給される電源電圧に伝送信号を重畳させ、電力線搬送にて伝送信号の送受信を行う第２の送受信部。 The power monitoring control system of this embodiment is characterized by having the following configuration.
(1) A power supply device for power monitoring and control provided with the following configuration.
(1-1) A first transmission / reception unit that transmits / receives a transmission signal to / from a central monitoring device that monitors power.
(1-2) Power supply voltage output unit for supplying power supply voltage.
(1-3) Based on the transmission signal with the central monitoring device transmitted / received by the first transmission / reception unit, the transmission signal is superimposed on the power supply voltage supplied by the power supply voltage output unit, and transmission / reception of the transmission signal is performed by power line carrier Second transceiver to perform.

（２）次のような構成を備えた電力監視制御装置。
（２−１）電力監視制御用電源装置により電源電圧が供給され、電源電圧に重畳された伝送信号により、電力線搬送にて送受信を行う第３の送受信部。
（２−２）第３の送受信部により送受信された伝送信号に基づき受配電設備の監視制御を行う入出力部。
また、上記の電力監視制御用電源装置、電力監視制御装置も本実施形態に含まれる。 (2) A power monitoring and control apparatus having the following configuration.
(2-1) A third transmission / reception unit which transmits and receives power line by a transmission signal which is supplied with a power supply voltage by a power supply device for power monitoring control and which is superimposed on the power supply voltage.
(2-2) An input / output unit that performs monitoring control of power distribution equipment based on the transmission signal transmitted and received by the third transmission / reception unit.
Further, the power monitoring control power supply device and the power monitoring control device described above are also included in the present embodiment.

第１実施形態にかかる電力監視制御システムを示す図A diagram showing a power monitoring control system according to a first embodiment 第１実施形態にかかる電力監視制御用電源装置の構成を示す図The figure which shows the structure of the power supply device for electric power monitoring control concerning 1st Embodiment. 第１実施形態にかかる電力監視制御装置の構成を示す図The figure which shows the structure of the power monitoring control apparatus concerning 1st Embodiment. 第１実施形態にかかる電力監視制御装置のプログラムフローを示す図The figure which shows the program flow of the power monitoring control apparatus concerning 1st Embodiment. 第１実施形態にかかる電力監視制御用電源装置のプログラムフローを示す図The figure which shows the program flow of the power supply device for electric power monitoring control concerning 1st Embodiment.

［１．第１実施形態］
［１−１．構成］
図１〜３を参照して本実施形態の一例としての電力監視制御システムについて説明する。 [1. First embodiment]
[1-1. Constitution]
A power monitoring control system as an example of the present embodiment will be described with reference to FIGS.

（１）電力監視制御システムの全体構成
本電力監視制御システム１は、電力監視制御用電源装置２、電力監視制御装置３（３ａ、３ｂ、３ｎ）を有する。電力監視制御用電源装置２は、通信回線８を介し、中央制御装置７に接続される。電力監視制御装置３（３ａ、３ｂ、３ｎ）は、受配電設備６（６ａ、６ｂ、６ｎ）に接続される。電力監視制御用電源装置２と電力監視制御装置３（３ａ、３ｂ、３ｎ）は、電力供給線４（４ａ、４ｂ、４ｎ）により接続される。 (1) Overall Configuration of Power Monitoring and Control System The present power monitoring and control system 1 has a power monitoring and control power supply device 2 and power monitoring and control devices 3 (3a, 3b, 3n). The power monitoring control power supply device 2 is connected to the central control device 7 via the communication line 8. The power monitoring control devices 3 (3a, 3b, 3n) are connected to the power distribution equipment 6 (6a, 6b, 6n). The power monitoring control power supply device 2 and the power monitoring control device 3 (3a, 3b, 3n) are connected by a power supply line 4 (4a, 4b, 4n).

本実施形態において、同一構成の装置や部材が複数ある場合にはそれらについて同一の番号を付して説明を行い、また、同一構成の個々の装置や部材についてそれぞれを説明する場合に、共通する番号にアルファベットの添え字を付けることで区別する。   In the present embodiment, in the case where there are a plurality of devices or members of the same configuration, they will be described with the same reference numerals attached, and they will be common when describing individual devices or members of the same configuration. The distinction is made by appending alphabets to numbers.

電力監視制御システム１において、以下のデータが、入力、出力、送受信または記憶される。
データＤ１．受配電設備６の運転状況に関する情報
データＤ２．受配電設備６を制御するコマンド In the power monitoring control system 1, the following data is input, output, transmitted / received or stored.
Data D1. Information on operating condition of power distribution and distribution equipment 6 Data D2. Command to control power distribution equipment 6

（電力監視制御用電源装置２）
電力監視制御用電源装置２は、蓄電池等に蓄えられた電力を、電力監視制御装置３用の電圧に変換し出力する電源装置である。電力監視制御用電源装置２は、電力監視制御装置３に停電なく電源用の電力を供給する。電力監視制御用電源装置２は、電力監視制御装置３が設置された配電室等に設置される。 (Power supply for monitoring and control 2)
The power monitoring control power supply device 2 is a power supply device that converts the power stored in a storage battery or the like into a voltage for the power monitoring control device 3 and outputs the voltage. The power monitoring control power supply device 2 supplies power for power supply to the power monitoring control device 3 without power failure. The power monitoring control power supply device 2 is installed in a distribution room or the like in which the power monitoring control device 3 is installed.

電力監視制御用電源装置２から出力される電圧は、交流または直流である。電力監視制御装置３は、電力監視制御用電源装置２から電力供給線４を介し供給された電圧により駆動される。電力監視制御用電源装置２から出力される電源電圧は、バックアップ用の電源電圧であってもよい。   The voltage output from the power monitoring control power supply device 2 is alternating current or direct current. The power monitoring control device 3 is driven by a voltage supplied from the power monitoring control power supply device 2 via the power supply line 4. The power supply voltage output from the power monitoring control power supply device 2 may be a backup power supply voltage.

また、電力監視制御用電源装置２は、電力監視制御装置３との間で伝送信号の送受信を行う。伝送信号は、電力監視制御用電源装置２から電力供給線４を介し供給された電力監視制御装置３を駆動するための電源電圧に重畳され、電力線搬送にて伝送される。   Further, the power monitoring control power supply device 2 exchanges transmission signals with the power monitoring control device 3. The transmission signal is superimposed on the power supply voltage for driving the power monitoring control device 3 supplied from the power supply device 2 for power monitoring and control via the power supply line 4 and transmitted by the power line carrier.

電力監視制御用電源装置２は、電力供給線４を介し、電力線搬送にかかる伝送信号にて電力監視制御装置３から、データＤ１を受信する。電力監視制御用電源装置２は、通信回線８を介し中央制御装置７に対し、データＤ１を送信する。   The power monitoring and control power supply device 2 receives data D1 from the power monitoring and control device 3 by means of a transmission signal for carrying the power line via the power supply line 4. The power monitoring control power supply device 2 transmits data D1 to the central control device 7 via the communication line 8.

電力監視制御用電源装置２は、通信回線８を介し中央制御装置７から、データＤ２を受信する。電力監視制御用電源装置２は、電力供給線４を介し、電力線搬送にかかる伝送信号にて電力監視制御装置３に対し、データＤ２を送信する。   The power monitoring control power supply device 2 receives data D 2 from the central control device 7 via the communication line 8. The power monitoring and control power supply device 2 transmits data D2 to the power monitoring and control device 3 by means of a transmission signal for carrying the power line via the power supply line 4.

電力監視制御用電源装置２は、電力供給線４を介し電力監視制御装置３からデータＤ１を受信する。電力監視制御用電源装置２は、通信回線８を介し中央制御装置７に対し、データＤ１を送信する。   The power monitoring control power supply device 2 receives data D1 from the power monitoring control device 3 via the power supply line 4. The power monitoring control power supply device 2 transmits data D1 to the central control device 7 via the communication line 8.

（電力監視制御装置３）
電力監視制御装置３は、マイクロコンピュータ等により構成された装置である。電力監視制御装置３は、受配電設備６からデータＤ１を受信し、受配電設備６を制御する。データＤ１にかかる受配電設備６の運転状況に関する情報とは、受配電設備６の運転の状態に関する情報、受配電設備６の故障に関する情報、受配電設備６の計測値に関する情報等である。電力監視制御装置３は、受配電設備６とともに、配電室等の収納盤５に格納される。 (Power monitoring and control device 3)
The power monitoring control device 3 is a device configured by a microcomputer or the like. The power monitoring and control device 3 receives the data D1 from the power receiving and distributing facility 6 and controls the power receiving and distributing facility 6. The information on the operating condition of the power receiving and distribution facility 6 according to the data D1 includes information on the operating condition of the power receiving and distributing facility 6, information on the failure of the power receiving and distribution facility 6, information on the measurement value of the power receiving and distribution facility 6, and the like. The power monitoring and control device 3 is stored together with the power receiving and distributing equipment 6 in a storage board 5 such as a distribution room.

電力監視制御装置３は、電力供給線４を介し電力監視制御用電源装置２から供給された電源電圧を電源として動作する。   The power monitoring control device 3 operates using the power supply voltage supplied from the power monitoring control power supply device 2 via the power supply line 4 as a power supply.

また、電力監視制御装置３は、電力監視制御用電源装置２との間で伝送信号の送受信を行う。伝送信号は、電力監視制御用電源装置２から、電力供給線４を介し供給された電力監視制御装置３を駆動するための電源電圧に重畳され、電力線搬送にて伝送される。   Further, the power monitoring control device 3 transmits and receives transmission signals to and from the power monitoring control power supply device 2. The transmission signal is superimposed on the power supply voltage for driving the power monitoring control device 3 supplied from the power supply device 2 for power monitoring and control via the power supply line 4 and transmitted by the power line carrier.

電力監視制御装置３は、電力供給線４を介し、電力線搬送にかかる伝送信号にて電力監視制御用電源装置２に対し、データＤ１を送信する。   The power monitoring control device 3 transmits data D1 to the power monitoring control power supply device 2 via the power supply line 4 by means of a transmission signal for carrying the power line.

電力監視制御装置３は、電力供給線４を介し、電力線搬送にかかる伝送信号にて電力監視制御用電源装置２からデータＤ２を受信する。電力監視制御装置３は、受配電設備６に対し、指令データＤ２を送信する。   The power monitoring and control device 3 receives data D2 from the power monitoring and control power supply device 2 via the power supply line 4 in the form of a transmission signal for power line conveyance. The power monitoring and control apparatus 3 transmits command data D2 to the power distribution and distribution facility 6.

（電力供給線４）
電力供給線４は、銅等の導電材料により構成された、電力供給用の導線である。電力供給線４は、一端が電力監視制御用電源装置２に、他端が電力監視制御装置３に接続される。電力供給線４は、電力監視制御用電源装置２から出力される電源電圧を電力監視制御装置３に供給する。また、電力供給線４は、電力監視制御用電源装置２と電力監視制御装置３間で送受信される、電源電圧に重畳された伝送信号を、電力線搬送にて伝達する。 (Power supply line 4)
The power supply line 4 is a lead for power supply which is made of a conductive material such as copper. One end of the power supply line 4 is connected to the power monitoring control power supply device 2, and the other end is connected to the power monitoring control device 3. The power supply line 4 supplies the power monitoring control device 3 with the power supply voltage output from the power monitoring control power supply device 2. Further, the power supply line 4 transmits, via power line carrier, a transmission signal transmitted and received between the power monitoring control power supply device 2 and the power monitoring control device 3 and superimposed on the power supply voltage.

（受配電設備６）
受配電設備６は、開閉器、遮断器、断路器、計器用変圧器変流器、計測器、制御機器等の電力保護管理用の設備である。受配電設備６は、電力監視制御装置３に接続され、監視制御される。受配電設備６は、電力の給電線に配置され、電力監視制御装置３とともに、配電室等の収納盤５に格納される。 (Power receiving and distributing equipment 6)
The power distribution equipment 6 is equipment for power protection management, such as a switch, a circuit breaker, a disconnecting switch, a transformer for an instrument transformer, a measuring instrument, and a control device. The power distribution and distribution facility 6 is connected to the power monitoring and control device 3 and is monitored and controlled. The power distribution equipment 6 is disposed on a power supply line of electric power, and is stored together with the power monitoring and control device 3 in a storage board 5 such as a distribution room.

受配電設備６は、電力監視制御装置３に、データＤ１を送信する。データＤ１の受配電設備６の運転状況に関する情報とは、受配電設備６の運転の状態に関する情報、受配電設備６の故障に関する情報、受配電設備６の計測値に関する情報等である。また、受配電設備６は、電力監視制御装置３から、データＤ２を受信する。   The power distribution system 6 transmits the data D1 to the power monitoring and control apparatus 3. The information related to the operating condition of the power distribution facility 6 of the data D1 includes information related to the operating condition of the power distribution facility 6, information related to a failure of the power distribution facility 6, information related to the measurement value of the power distribution facility 6, and the like. Also, the power distribution system 6 receives the data D2 from the power monitoring and control apparatus 3.

（中央制御装置７）
中央監視装置７は、大型の表示装置がコンソールに収納された電力系統の監視制御を行うための装置である。中央監視装置７は、具体的には主回路機器の制御を行う連動ＰＬＣ（プログラマブルロジックコントロール）盤、系統保護を行う保護継電器盤、系統の電気量を計測する計測盤等の機器である。 (Central control unit 7)
The central monitoring device 7 is a device for performing monitoring control of a power system in which a large display device is housed in a console. Specifically, the central monitoring device 7 is a device such as an interlocking PLC (programmable logic control) board that controls main circuit devices, a protection relay board that performs system protection, and a measurement board that measures the amount of electricity of the system.

中央監視装置７は、通信回線８を介し電力監視制御用電源装置２から、データＤ１を受信する。中央制御装置７は、通信回線８を介し電力監視制御用電源装置２に対しデータＤ２を送信する。   The central monitoring device 7 receives data D1 from the power monitoring control power supply device 2 via the communication line 8. The central control unit 7 transmits data D 2 to the power monitoring control power supply unit 2 via the communication line 8.

（通信回線８）
通信回線８は、社内イントラネット、インターネット等により構成された通信回線である。通信回線８は、電力監視制御用電源装置２および中央監視装置７に接続され、データＤ１およびデータＤ２の送受信に使用される。 (Communication line 8)
The communication line 8 is a communication line configured by an in-house intranet, the Internet, and the like. The communication line 8 is connected to the power monitoring control power supply device 2 and the central monitoring device 7, and is used to transmit and receive the data D1 and the data D2.

（２）電力監視制御用電源装置２の構成
電力監視制御用電源装置２は、電力監視制御装置３に停電なく電源用の電力を供給する電源装置である。電力監視制御用電源装置２は、送受信部２１、電源電圧出力部２２、送受信部２３、制御部２４を有する。送受信部２１が請求項における第１の送受信部に、送受信部２３が請求項における第２の送受信部に相当する。 (2) Configuration of Power Monitoring and Control Power Supply Device 2 The power monitoring and control power supply device 2 is a power supply device for supplying power for power supply to the power monitoring and control device 3 without power failure. The power monitoring control power supply device 2 includes a transmission / reception unit 21, a power supply voltage output unit 22, a transmission / reception unit 23, and a control unit 24. The transmission / reception unit 21 corresponds to a first transmission / reception unit in the claims, and the transmission / reception unit 23 corresponds to a second transmission / reception unit in the claims.

（送受信部２１）
送受信部２１は、インターネット等の通信回線８との送受信回路により構成される。送受信部２１は、電力監視制御用電源装置２外部の通信回線８に接続される。送受信部２１は、送受信を制御部２４に制御される。送受信部２１は、通信回線８を介し中央制御装置７により送信されたデータＤ２を受信し、制御部２４に出力する。送受信部２１は、通信回線８を介し中央制御装置７に対し、データＤ１を送信する。 (Transmitter unit 21)
The transmission / reception unit 21 is configured of a transmission / reception circuit with the communication line 8 such as the Internet. The transmission / reception unit 21 is connected to the communication line 8 outside the power supply device 2 for power monitoring control. The transmission and reception unit 21 is controlled by the control unit 24 to perform transmission and reception. The transmission / reception unit 21 receives the data D2 transmitted by the central control device 7 through the communication line 8 and outputs the data D2 to the control unit 24. The transmission / reception unit 21 transmits data D1 to the central control device 7 via the communication line 8.

（送受信部２３）
送受信部２３は、電力線搬送の送受信回路により構成される。送受信部２３は、電力監視制御用電源装置２外部の電力供給線４に接続される。送受信部２３は、送受信を制御部２４に制御される。 (Transmitter 23)
The transmission / reception unit 23 is configured by a transmission / reception circuit of power line carrier. The transmission / reception unit 23 is connected to the power supply line 4 outside the power supply device 2 for power monitoring control. The transmission / reception unit 23 is controlled by the control unit 24 for transmission / reception.

送受信部２３は、電力供給線４に伝送信号を重畳させ電力線搬送により、電力監視制御装置３に対し、データＤ２を送信する。送受信部２３は、電力監視制御装置３から送信されたデータＤ１を受信する。データＤ１は、電力監視制御装置３から、電力供給線４に重畳された電力線搬送による伝送信号にて送信される。送受信部２３は、受信したデータＤ１を、制御部２４に出力する   The transmission / reception unit 23 superimposes the transmission signal on the power supply line 4 and transmits data D2 to the power monitoring control apparatus 3 by power line conveyance. The transmission / reception unit 23 receives the data D1 transmitted from the power monitoring control device 3. The data D1 is transmitted from the power monitoring and control apparatus 3 as a transmission signal by power line carrier superimposed on the power supply line 4. The transmitting and receiving unit 23 outputs the received data D1 to the control unit 24.

（電源電圧出力部２２）
電源電圧出力部２２は、蓄電池等を電源とする電源回路により構成された無停電電源装置である。電源電圧出力部２２は、制御部２４に制御され、蓄電池等に蓄えられた電力を、電力監視制御装置３用の電圧に変換し出力する。 (Power supply voltage output unit 22)
The power supply voltage output unit 22 is an uninterruptible power supply configured by a power supply circuit using a storage battery or the like as a power supply. The power supply voltage output unit 22 is controlled by the control unit 24 and converts the power stored in the storage battery or the like into a voltage for the power monitoring control device 3 and outputs it.

電源電圧出力部２２から出力される電圧は、交流または直流である。電力監視制御装置３は、電源電圧出力部２２から電力供給線４を介し供給された電源電圧により駆動される。また、電源電圧出力部２２から供給される電源電圧には、電力監視制御用電源装置２と電力監視制御装置３間で電力線搬送にて送受信されるデータＤ１、データＤ２にかかる伝送信号が重畳される。   The voltage output from the power supply voltage output unit 22 is alternating current or direct current. The power monitoring control device 3 is driven by the power supply voltage supplied from the power supply voltage output unit 22 through the power supply line 4. Also, on the power supply voltage supplied from the power supply voltage output unit 22, data D1 and data D2 transmitted and received on the power line carrier between the power management device for power monitoring and control 2 and the power monitoring and control device 3 are superimposed. Ru.

（制御部２４）
制御部２４は、マイクロコンピュータにより構成される。制御部２４は、後述するコンピュータプログラムを内蔵する。制御部２４は、送受信部２１、電源電圧出力部２２、送受信部２３に接続される。制御部２４は、送受信部２１、電源電圧出力部２２、送受信部２３に対し、以下の演算および制御を行う。 (Control unit 24)
The control unit 24 is configured by a microcomputer. The control unit 24 incorporates a computer program described later. The control unit 24 is connected to the transmission / reception unit 21, the power supply voltage output unit 22, and the transmission / reception unit 23. The control unit 24 performs the following calculation and control on the transmission / reception unit 21, the power supply voltage output unit 22, and the transmission / reception unit 23.

（Ａ１）送受信部２１に対する制御
制御部２４は、通信回線８を介し中央制御装置７により送信されたデータＤ２を受信するように、送受信部２１を制御する。また、制御部２４は、通信回線８を介し中央制御装置７に対しデータＤ１を送信するように、送受信部２１を制御する。制御部２４は、電力監視制御装置３から受信したデータＤ１を、通信回線８用の伝送フォーマット、伝送速度に変換する。 (A1) Control of Transmission and Reception Unit 21 The control unit 24 controls the transmission and reception unit 21 to receive the data D2 transmitted by the central control device 7 through the communication line 8. Further, the control unit 24 controls the transmission / reception unit 21 to transmit the data D1 to the central control device 7 via the communication line 8. The control unit 24 converts the data D1 received from the power monitoring control device 3 into a transmission format for the communication line 8 and a transmission rate.

（Ａ２）送受信部２３に対する制御
制御部２４は、電力監視制御装置３から送信されたデータＤ１を受信するように、送受信部２３を制御する。データＤ１は、電力監視制御装置３から、電力供給線４に重畳された電力線搬送による伝送信号にて送信される。 (A2) Control of Transmission and Reception Unit 23 The control unit 24 controls the transmission and reception unit 23 to receive the data D1 transmitted from the power monitoring control apparatus 3. The data D1 is transmitted from the power monitoring and control apparatus 3 as a transmission signal by power line carrier superimposed on the power supply line 4.

また、制御部２４は、電力供給線４に伝送信号を重畳させ電力線搬送により、電力監視制御装置３に対し、データＤ２を送信するように、送受信部２３を制御する。制御部２４は、通信回線８を介し中央制御装置７から受信したデータＤ２を、電力線搬送用の伝送フォーマット、伝送速度に変換する。   Further, the control unit 24 superimposes the transmission signal on the power supply line 4 and controls the transmission / reception unit 23 to transmit the data D2 to the power monitoring control apparatus 3 by power line conveyance. The control unit 24 converts the data D2 received from the central control unit 7 via the communication line 8 into a transmission format for power line conveyance and a transmission rate.

（Ａ３）電源電圧出力部２２に対する制御
制御部２４は、蓄電池等に蓄えられた電力を、電力監視制御装置３用の電圧に変換し出力するように、電源電圧出力部２２を制御する。 (A3) Control on Power Supply Voltage Output Unit 22 The control unit 24 controls the power supply voltage output unit 22 so as to convert the power stored in the storage battery or the like into a voltage for the power monitoring control device 3 and output it.

（３）電力監視制御装置３の構成
電力監視制御装置３は、受配電設備６を制御する監視制御装置である。電力監視制御装置３は、受配電設備６からデータＤ１を受信し、電力監視制御用電源装置２に対しデータＤ１を送信する。電力監視制御装置３は、電力監視制御用電源装置２からデータＤ２を受信するとともに、受配電設備６に対しデータＤ２を送信する。電力監視制御装置３は、電源部３１、送受信部３２、電源監視部３３、入出力部３４、制御部３５を有する。送受信部３２が請求項における第３の送受信部に相当する。 (3) Configuration of Power Monitoring and Control Device 3 The power monitoring and control device 3 is a monitoring and control device that controls the power receiving and distribution facility 6. The power monitoring control device 3 receives the data D1 from the power receiving and distributing facility 6, and transmits the data D1 to the power monitoring control power supply device 2. The power monitoring control device 3 receives the data D2 from the power monitoring control power supply device 2 and transmits the data D2 to the power receiving and distributing facility 6. The power monitoring control device 3 includes a power supply unit 31, a transmission / reception unit 32, a power supply monitoring unit 33, an input / output unit 34, and a control unit 35. The transmission / reception unit 32 corresponds to a third transmission / reception unit in the claims.

（電源部３１）
電源部３１は、トランジスタによるスイッチング回路等により構成された電源回路である。電源部３１は、電力供給線４に接続される。電源部３１は、電力供給線４を介し電力監視制御用電源装置２から供給された電源電圧を、電力監視制御装置３内部用の電源電圧に変換する。電源部３１は、変換した内部用の電源電圧を、電力監視制御装置３を構成する各部に供給する。 (Power supply unit 31)
The power supply unit 31 is a power supply circuit configured by a switching circuit or the like using a transistor. The power supply unit 31 is connected to the power supply line 4. The power supply unit 31 converts the power supply voltage supplied from the power monitoring and control power supply device 2 through the power supply line 4 into a power supply voltage for the power monitoring and control device 3. The power supply unit 31 supplies the converted power supply voltage for internal use to each unit constituting the power monitoring and control apparatus 3.

（送受信部３２）
送受信部３２は、電力線搬送の送受信回路により構成される。送受信部３２は、電力監視制御装置３外部の電力供給線４に接続される。送受信部３２は、送受信を制御部３５に制御される。 (Transmitter 32)
The transmission / reception unit 32 is configured by a transmission / reception circuit of power line carrier. The transmission / reception unit 32 is connected to the power supply line 4 outside the power monitoring and control apparatus 3. The transmission / reception unit 32 is controlled by the control unit 35 for transmission / reception.

送受信部３２は、電力供給線４に伝送信号を重畳させ電力線搬送により、電力監視制御用電源装置２に対し、データＤ１を送信する。送受信部３２は、電力監視制御用電源装置２から送信されたデータＤ２を受信する。データＤ２は、電力監視制御用電源装置２から、電力供給線４に重畳された電力線搬送による伝送信号にて送信される。送受信部３２は、受信したデータＤ２を、制御部３５に出力する。   The transmission / reception unit 32 superimposes a transmission signal on the power supply line 4 and transmits data D1 to the power monitoring and control power supply device 2 by power line conveyance. The transmission / reception unit 32 receives the data D2 transmitted from the power supply device 2 for power monitoring control. The data D2 is transmitted from the power monitoring and control power supply device 2 as a transmission signal by power line carrier superimposed on the power supply line 4. The transmission / reception unit 32 outputs the received data D2 to the control unit 35.

（電源監視部３３）
電源監視部３３は、電力線搬送にかかる伝送信号のキャリア検出回路により構成される。電源監視部３３は、電力供給線４に接続される。電源監視部３３は、電力供給線４の電源電圧に重畳された、電力線搬送にかかる伝送信号のキャリアを一定時間受信しないか検出し、制御部３５に出力する。電源監視部３３が、電力線搬送にかかる伝送信号のキャリアを一定時間受信しない場合、制御部３５により、電力監視制御用電源装置２から出力される電源が喪失されたものと判断される。 (Power supply monitoring unit 33)
The power supply monitoring unit 33 is configured of a carrier detection circuit of a transmission signal applied to the power line carrier. The power supply monitoring unit 33 is connected to the power supply line 4. The power supply monitoring unit 33 detects whether or not the carrier of the transmission signal applied to the power line carrier superimposed on the power supply voltage of the power supply line 4 is received for a predetermined time, and outputs the carrier to the control unit 35. When the power supply monitoring unit 33 does not receive the carrier of the transmission signal for power line conveyance for a certain period of time, the control unit 35 determines that the power output from the power supply device for power monitoring control 2 is lost.

（入出力部３４）
入出力部３４は、カレントループ回路等の送受信回路により構成される。入出力部３４は、受配電設備６に接続される。入出力部３４は、送受信を制御部３５に制御される。 (I / O unit 34)
The input / output unit 34 is configured of a transmission / reception circuit such as a current loop circuit. The input / output unit 34 is connected to the power reception and distribution facility 6. The input / output unit 34 is controlled by the control unit 35 for transmission and reception.

入出力部３４は、受配電設備６により送信されたデータＤ１を受信する。入出力部３４は、受配電設備６に対し、データＤ２を送信する。受配電設備６は受信したデータＤ２により動作が制御される。   The input / output unit 34 receives the data D1 transmitted by the power receiving and distribution facility 6. The input / output unit 34 transmits the data D2 to the power reception and distribution facility 6. The operation of the power distribution system 6 is controlled by the received data D2.

（制御部３５）
制御部３５は、マイクロコンピュータにより構成される。制御部３５は、後述するコンピュータプログラムを内蔵する。制御部３５は、電源部３１、送受信部３２、電源監視部３３、入出力部３４に接続される。制御部３５は、電源部３１、送受信部３２、電源監視部３３、入出力部３４、に対し、以下の演算および制御を行う。 (Control unit 35)
The control unit 35 is configured by a microcomputer. The control unit 35 incorporates a computer program described later. The control unit 35 is connected to the power supply unit 31, the transmission / reception unit 32, the power supply monitoring unit 33, and the input / output unit 34. The control unit 35 performs the following calculation and control on the power supply unit 31, the transmission / reception unit 32, the power supply monitoring unit 33, and the input / output unit 34.

（Ｂ１）電源部３１に対する制御
制御部３５は、電力供給線４を介し電力監視制御用電源装置２から供給された電源電圧を、電力監視制御装置３内部用の電源電圧に変換し、各部に供給するように、電源部３１を制御する。 (B1) Control for the power supply unit 31 The control unit 35 converts the power supply voltage supplied from the power supply device for power monitoring and control 2 via the power supply line 4 into the power supply voltage for the power monitoring and control device 3, and The power supply unit 31 is controlled to be supplied.

（Ｂ２）送受信部３２に対する制御
制御部３５は、電力監視制御用電源装置２から送信されたデータＤ２を受信するように、送受信部３２を制御する。データＤ２は、電力監視制御用電源装置２から、電力供給線４に重畳された電力線搬送による伝送信号にて送信される。 (B2) Control of Transmission / Reception Unit 32 The control unit 35 controls the transmission / reception unit 32 to receive the data D2 transmitted from the power monitoring control power supply device 2. The data D2 is transmitted from the power monitoring and control power supply device 2 as a transmission signal by power line carrier superimposed on the power supply line 4.

また、制御部３５は、電力供給線４に伝送信号を重畳させ電力線搬送により、電力監視制御用電源装置２に対し、データＤ１を送信するように、送受信部３２を制御する。制御部３５は、受配電設備６から受信したデータＤ１を、電力線搬送用の伝送フォーマット、伝送速度に変換する。   Further, the control unit 35 superimposes the transmission signal on the power supply line 4 and controls the transmission / reception unit 32 to transmit data D1 to the power monitoring control power supply device 2 by power line conveyance. The control unit 35 converts the data D1 received from the power receiving and distribution facility 6 into a transmission format for power line conveyance and a transmission speed.

（Ｂ３）電源監視部３３に対する制御
制御部３５は、電力供給線４の電源電圧に重畳された、電力線搬送にかかる伝送信号のキャリアを一定時間受信しないかの検出を行うように、電源監視部３３を制御する。電源監視部３３が、電力線搬送にかかる伝送信号のキャリアを一定時間受信しない場合、制御部３５により、電力監視制御用電源装置２から出力される電源が喪失されたものと判断される。 (B3) Control for Power Supply Monitoring Unit 33 The power supply monitoring unit is configured to detect whether the carrier of the transmission signal applied to the power line conveyance superimposed on the power supply voltage of the power supply line 4 is not received for a certain period of time. Control 33 When the power supply monitoring unit 33 does not receive the carrier of the transmission signal for power line conveyance for a certain period of time, the control unit 35 determines that the power output from the power supply device for power monitoring control 2 is lost.

（Ｂ４）入出力部３４に対する制御
制御部３５は、受配電設備６により送信されたデータＤ１を受信するように、入出力部３４を制御する。また、制御部３５は、受配電設備６に対し、データＤ２を送信するように、入出力部３４を制御する。受配電設備６は受信したデータＤ２により動作が制御される。 (B4) Control on the input / output unit 34 The control unit 35 controls the input / output unit 34 to receive the data D1 transmitted by the power receiving and distribution facility 6. Further, the control unit 35 controls the input / output unit 34 so as to transmit the data D2 to the power receiving and distributing facility 6. The operation of the power distribution system 6 is controlled by the received data D2.

［１−２．作用］
次に、本実施形態の電力監視制御システム１の作用を、図１〜図５に基づき説明する。 [1-2. Action]
Next, the operation of the power monitoring control system 1 of the present embodiment will be described based on FIGS. 1 to 5.

［Ａ．電力監視制御装置３の動作］
電力監視制御装置３は、電力供給線４を介し電力監視制御用電源装置２から供給された電源電圧を電源として動作する。電力監視制御装置３の電源部３１は、電力供給線４を介し電力監視制御用電源装置２から供給された電源電圧を、電力監視制御装置３内部用の電源電圧に変換する。電源部３１は、変換した内部用の電源電圧を、電力監視制御装置３を構成する各部に供給する。 [A. Operation of Power Monitoring and Control Device 3]
The power monitoring control device 3 operates using the power supply voltage supplied from the power monitoring control power supply device 2 via the power supply line 4 as a power supply. The power supply unit 31 of the power monitoring and control device 3 converts the power supply voltage supplied from the power monitoring and control power supply device 2 via the power supply line 4 into a power supply voltage for the power monitoring and control device 3. The power supply unit 31 supplies the converted power supply voltage for internal use to each unit constituting the power monitoring and control apparatus 3.

電力監視制御装置３は、図４に示すプログラムに従って動作を行う。以下に電力監視制御装置３ａの動作を図４に示すプログラムに沿って説明する。電力監視制御装置３ｂ、３ｎの動作も同様である。図４に示すプログラムは、制御部３５に内蔵される。図４に示すプログラムは、制御部３５により、繰り返し実行される。   The power monitoring control device 3 operates according to the program shown in FIG. The operation of the power monitoring control apparatus 3a will be described below along the program shown in FIG. The operations of the power monitoring control devices 3b and 3n are the same. The program shown in FIG. 4 is incorporated in the control unit 35. The program shown in FIG. 4 is repeatedly executed by the control unit 35.

（ステップＳ０１：受配電設備６からデータＤ１を受信したかの判断を行う）
制御部３５は、受配電設備６からデータＤ１を、入出力部３４が受信したかの判断を行う。データＤ１の受配電設備６の運転状況に関する情報は、受配電設備６の運転の状態に関する情報、受配電設備６の故障に関する情報、受配電設備６の計測値に関する情報等を含む。データＤ１は、常時、受配電設備６から送信される。 (Step S01: It is determined whether the data D1 has been received from the power distribution facility 6)
The control unit 35 determines whether the input / output unit 34 receives the data D1 from the power receiving and distribution facility 6. The information on the operating condition of the power distribution facility 6 of the data D1 includes information on the operating condition of the power distribution facility 6, information on the failure of the power distribution facility 6, information on the measurement value of the power distribution facility 6, and the like. The data D1 is always transmitted from the power receiving and distributing facility 6.

データＤ１を受信したと判断した場合（ステップＳ０１のＹＥＳ）、ステップＳ０２に移行する。データＤ１を受信したと判断しない場合（ステップＳ０１のＮＯ）、プログラムを終了する。   If it is determined that the data D1 has been received (YES in step S01), the process proceeds to step S02. If it is not determined that the data D1 has been received (NO in step S01), the program ends.

（ステップＳ０２：電源装置２にデータＤ１の送信を行う）
ステップＳ０１にてデータＤ１を受信したと判断された場合、制御部３５は、電力監視制御用電源装置２に対し、送受信部３２からデータＤ１の送信を行う。制御部３５は、受配電設備６から受信したデータＤ１を、電力線搬送用の伝送フォーマット、伝送速度に変換する。変換されたデータＤ１は、電力供給線４に伝送信号を重畳させた電力線搬送により送信される。 (Step S02: Send data D1 to the power supply 2)
If it is determined in step S01 that the data D1 has been received, the control unit 35 transmits the data D1 from the transmission / reception unit 32 to the power monitoring control power supply device 2. The control unit 35 converts the data D1 received from the power receiving and distribution facility 6 into a transmission format for power line conveyance and a transmission speed. The converted data D1 is transmitted by power line carrier in which a transmission signal is superimposed on the power supply line 4.

（ステップＳ０３：電源装置２からデータＤ２を受信したかの判断を行う）
次に、制御部３５は、電力監視制御用電源装置２からデータＤ２を、送受信部３２が受信したかの判断を行う。データＤ２の受配電設備６を制御するコマンドは、ステップＳ０２にて送信されたデータＤ１に応答する形で、電力監視制御用電源装置２から送信される。 (Step S03: It is determined whether the data D2 has been received from the power supply 2)
Next, the control unit 35 determines whether the transmission / reception unit 32 has received the data D2 from the power supply device 2 for power monitoring control. The command for controlling the power distribution facility 6 of the data D2 is transmitted from the power monitoring control power supply device 2 in response to the data D1 transmitted in step S02.

データＤ２には、受配電設備６である開閉器や遮断器の開閉を指示するコマンド等が含まれる。データＤ２は、電力供給線４に伝送信号を重畳させた電力線搬送により送信される。データＤ２は、一定時間内に電力監視制御用電源装置２から送信される。   The data D2 includes a switch which is the power receiving and distributing facility 6, a command for instructing switching of the circuit breaker, and the like. The data D2 is transmitted by the power line carrier in which the transmission signal is superimposed on the power supply line 4. The data D2 is transmitted from the power monitoring control power supply device 2 within a predetermined time.

データＤ２を受信したと判断した場合（ステップＳ０３のＹＥＳ）、ステップＳ０４に移行する。データＤ２を受信したと判断しない場合（ステップＳ０３のＮＯ）、ステップＳ０５に移行する。   If it is determined that the data D2 has been received (YES in step S03), the process proceeds to step S04. If it is not determined that the data D2 has been received (NO in step S03), the process proceeds to step S05.

（ステップＳ０４：受配電設備６にデータＤ２の送信を行う）
ステップＳ０３にてデータＤ２を受信したと判断された場合、制御部３５は、受配電設備６に対し、入出力部３４からデータＤ２の送信を行う。制御部３５は、電力監視制御用電源装置２から、電力線搬送用の伝送フォーマット、伝送速度にて受信したデータＤ２を、受配電設備６送信用の伝送フォーマット、伝送速度に変換する。変換されたデータＤ２は、電力監視制御装置３と受配電設備６との間に設けられた専用線を介し、受配電設備６に送信される。 (Step S04: Transmission of data D2 to the power distribution equipment 6)
If it is determined in step S03 that data D2 has been received, control unit 35 transmits data D2 from input / output unit 34 to power distribution facility 6. The control unit 35 converts the transmission format for power line conveyance and the data D2 received at the transmission rate from the power supply device 2 for power monitoring and control into the transmission format for transmission of the power receiving and distribution facility 6 and the transmission rate. The converted data D2 is transmitted to the power receiving and distribution facility 6 via a dedicated line provided between the power monitoring and control device 3 and the power receiving and distribution facility 6.

（ステップＳ０５：電力線搬送にかかる伝送信号のキャリアを一定時間受信しないかの判断を行う）
次に、制御部３５は、電力供給線４の電源電圧に重畳された、電力線搬送にかかる伝送信号のキャリアを、電源監視部３３により一定時間受信しないかの判断を行う。データＤ２は、ステップＳ０２にて送信されたデータＤ１に応答する形で、電力監視制御用電源装置２から送信されることは前述のとおりである。制御部３５は、電力供給線４の電源電圧に重畳された、データＤ２の電力線搬送にかかる伝送信号のキャリアを、電源監視部３３により一定時間受信しない場合、電力監視制御用電源装置２から出力される電源が喪失されたものと判断する。 (Step S05: It is judged whether the carrier of the transmission signal concerning power line conveyance is not received for a fixed time)
Next, the control unit 35 determines whether the power supply monitoring unit 33 does not receive the carrier of the transmission signal related to the power line conveyance superimposed on the power supply voltage of the power supply line 4 for a certain period of time. As described above, the data D2 is transmitted from the power monitoring control power supply device 2 in response to the data D1 transmitted in step S02. The control unit 35 outputs the power monitoring control power supply device 2 when the power monitoring unit 33 does not receive the carrier of the transmission signal related to the power line conveyance of the data D2 superimposed on the power supply voltage of the power supply line 4 for a predetermined time. Power is lost.

電力線搬送にかかる伝送信号のキャリアを一定時間受信しないと判断した場合（ステップＳ０５のＹＥＳ）、ステップＳ０６に移行する。電力線搬送にかかる伝送信号のキャリアを一定時間受信しないと判断しない場合（ステップＳ０５のＮＯ）、プログラムを終了する。   When it is judged that the carrier of the transmission signal concerning power line conveyance is not received for a definite period of time (YES of step S05), it transfers to step S06. If it is not determined that the carrier of the transmission signal for power line conveyance is not received for a certain period of time (NO in step S05), the program is ended.

（ステップＳ０６：受配電設備６に指令の送信を行う）
ステップＳ０５にて電力線搬送にかかる伝送信号のキャリアを一定時間受信しないと判断された場合、制御部３５は、入出力部３４から受配電設備６に対し、フェールセーフとなる指令の送信を行う。 (Step S06: Send a command to the distribution equipment 6)
If it is determined in step S05 that the carrier of the transmission signal relating to the power line transportation is not received for a certain period of time, the control unit 35 transmits a failsafe command to the power distribution facility 6 from the input / output unit 34.

データＤ２には、受配電設備６である開閉器や遮断器の開閉を指示するコマンド等が含まれる。しかしながら電力監視制御用電源装置２から出力される電源が喪失された場合、データＤ２による受配電設備６の適切な制御を行うことができなくなる。   The data D2 includes a switch which is the power receiving and distributing facility 6, a command for instructing switching of the circuit breaker, and the like. However, when the power output from the power monitoring control power supply device 2 is lost, it becomes impossible to appropriately control the power distribution equipment 6 by the data D2.

そこで、データＤ２を一定時間受信しないと判断した場合、制御部３５は、受配電設備６に対し、受配電設備６である開閉器や遮断器の開閉を安全である状態となるように指示するコマンド、つまりフェールセーフとなる指令の送信を行う。フェールセーフとなる指令は、電力監視制御装置３と受配電設備６との間に設けられた専用線を介し、受配電設備６に送信される。   Therefore, when it is determined that the data D2 is not received for a predetermined time, the control unit 35 instructs the power receiving and distributing facility 6 to be in a safe state for opening and closing the switch and circuit breaker which are the power receiving and distributing facility 6. Send a command, that is, a command that becomes fail safe. The fail-safe command is transmitted to the power receiving and distribution facility 6 through a dedicated line provided between the power monitoring and control device 3 and the power receiving and distribution facility 6.

なお、電力監視制御装置３は、小容量の蓄電池またはコンデンサ（図中不示）を有しており、電力監視制御用電源装置２から出力される電源が喪失された場合であっても、短時間の動作を行うことが可能である。   Power monitoring and control device 3 has a small capacity storage battery or capacitor (not shown), and shorts even if the power output from power monitoring control power supply device 2 is lost. It is possible to perform the action of time.

その後、制御部３５は、一連のプログラムを終了する。   Thereafter, the control unit 35 ends the series of programs.

［Ｂ．電力監視制御用電源装置２の動作］
電力監視制御用電源装置２は、電力供給線４を介し電力監視制御装置３に電源電圧を供給する。電力監視制御装置３は、電力監視制御用電源装置２から供給された電源電圧を電源として動作する。電力監視制御用電源装置２の電源電圧出力部２２は、制御部２４に制御され、蓄電池等に蓄えられた電力を、電力監視制御装置３用の電圧に変換し出力する。 [B. Operation of Power Supply Unit 2 for Power Monitoring and Control]
The power monitoring control power supply device 2 supplies a power supply voltage to the power monitoring control device 3 via the power supply line 4. The power monitoring control device 3 operates using the power supply voltage supplied from the power monitoring control power supply device 2 as a power supply. The power supply voltage output unit 22 of the power monitoring control power supply device 2 is controlled by the control unit 24 and converts the power stored in a storage battery or the like into a voltage for the power monitoring control device 3 and outputs it.

電力監視制御用電源装置２は、図５に示すプログラムに従って動作を行う。以下に電力監視制御用電源装置２の動作を図５に示すプログラムに沿って説明する。図５に示すプログラムは、制御部２４に内蔵される。図５に示すプログラムは、制御部２４により、繰り返し実行される。   The power monitoring control power supply device 2 operates according to the program shown in FIG. The operation of the power monitoring control power supply device 2 will be described below in accordance with a program shown in FIG. The program shown in FIG. 5 is incorporated in the control unit 24. The program shown in FIG. 5 is repeatedly executed by the control unit 24.

（ステップＲ０１：電力監視制御装置３からデータＤ１を受信したかの判断を行う）
制御部２４は、電力監視制御装置３からデータＤ１を、送受信部２３が受信したかの判断を行う。データＤ１は、電力供給線４に伝送信号を重畳させた電力線搬送により、電力監視制御装置３から送信される。データＤ１は、受配電設備６の運転の状態に関する情報、受配電設備６の故障に関する情報、受配電設備６の計測値に関する情報等を含み、常時、電力監視制御装置３から送信される。 (Step R01: It is judged whether the data D1 has been received from the power monitoring and control device 3)
The control unit 24 determines whether the transmission / reception unit 23 receives the data D1 from the power monitoring control device 3. Data D <b> 1 is transmitted from the power monitoring and control apparatus 3 by power line carrier in which the transmission signal is superimposed on the power supply line 4. The data D1 includes information on the operation state of the power receiving and distributing equipment 6, information on a failure of the power receiving and distributing equipment 6, information on the measured value of the power receiving and distribution equipment 6, etc.

データＤ１を受信したと判断した場合（ステップＲ０１のＹＥＳ）、ステップＲ０２に移行する。データＤ１を受信したと判断しない場合（ステップＲ０１のＮＯ）、プログラムを終了する。   If it is determined that the data D1 has been received (YES in step R01), the process proceeds to step R02. If it is not determined that the data D1 has been received (NO in step R01), the program ends.

（ステップＲ０２：中央制御装置７にデータＤ１の送信を行う）
ステップＲ０１にてデータＤ１を受信したと判断された場合、制御部２４は、中央制御装置７に対し、送受信部２１からデータＤ１の送信を行う。制御部２４は、電力監視制御装置３から、電力線搬送用の伝送フォーマット、伝送速度にて受信したデータＤ１を、通信回線８用の伝送フォーマット、伝送速度に変換する。変換されたデータＤ１は、通信回線８を介し、中央制御装置７に送信される。 (Step R02: Send data D1 to central control unit 7)
If it is determined in step R01 that the data D1 has been received, the control unit 24 transmits the data D1 from the transmitting and receiving unit 21 to the central control device 7. The control unit 24 converts the transmission format for power line conveyance and the data D1 received at the transmission rate from the power monitoring and control apparatus 3 into the transmission format for the communication line 8 and the transmission rate. The converted data D1 is transmitted to the central control device 7 via the communication line 8.

（ステップＲ０３：中央制御装置７からデータＤ２を受信したかの判断を行う）
次に、制御部２４は、中央制御装置７からデータＤ２を、送受信部２１が受信したかの判断を行う。データＤ２は、ステップＲ０２にて送信されたデータＤ１に応答する形で、中央制御装置７から送信される。 (Step R03: It is determined whether the data D2 has been received from the central control unit 7)
Next, the control unit 24 determines whether the transmission / reception unit 21 has received the data D2 from the central control device 7. The data D2 is transmitted from the central control unit 7 in response to the data D1 transmitted in step R02.

データＤ２には、中央制御装置７により判断された、受配電設備６である開閉器や遮断器の開閉を指示するコマンド等が含まれる。データＤ２は、一定時間内に中央制御装置７から送信される。   The data D2 includes a command or the like that instructs the opening and closing of the switch which is the power receiving and distributing facility 6 or the circuit breaker, which is determined by the central control device 7. The data D2 is transmitted from the central control unit 7 within a fixed time.

データＤ２を受信したと判断した場合（ステップＲ０３のＹＥＳ）、ステップＳ０４に移行する。データＤ２を受信したと判断しない場合（ステップＲ０３のＮＯ）、プログラムを終了する。   If it is determined that the data D2 has been received (YES in step R03), the process proceeds to step S04. If it is not determined that the data D2 has been received (NO in step R03), the program ends.

（ステップＲ０４：電力監視制御装置３にデータＤ２の送信を行う）
ステップＲ０３にてデータＤ２を受信したと判断された場合、制御部２４は、電力監視制御装置３に対し、送受信部２３からデータＤ２の送信を行う。制御部２４は、中央制御装置７から、通信回線８用の伝送フォーマット、伝送速度にて受信したデータＤ２を、電力線搬送用の伝送フォーマット、伝送速度に変換する。変換されたデータＤ２は、電力供給線４を介し、電力監視制御装置３に送信される。 (Step R04: Transmission of data D2 to the power monitoring and control device 3)
If it is determined in step R03 that the data D2 has been received, the control unit 24 transmits the data D2 from the transmitting / receiving unit 23 to the power monitoring control device 3. The control unit 24 converts the transmission format for the communication line 8 from the central control unit 7 and the data D2 received at the transmission rate into a transmission format for power line conveyance and a transmission rate. The converted data D2 is transmitted to the power monitoring control device 3 via the power supply line 4.

その後、制御部２４は、一連のプログラムを終了する。以上が、本実施形態にかかる電力監視制御システム１の動作である。   Thereafter, the control unit 24 ends the series of programs. The above is the operation of the power monitoring control system 1 according to the present embodiment.

［１−３．効果］
（１）本実施形態によれば、電力監視制御用電源装置２は、電力の監視を行う中央監視装置７と伝送信号の送受信を行う第１の送受信部２１と、電源電圧の供給を行う電源電圧出力部２２と、第１の送受信部２１により送受信された中央監視装置７との伝送信号に基づき、電源電圧出力部２２により供給される電源電圧に伝送信号を重畳させ、電力線搬送にて伝送信号の送受信を行う第２の送受信部２３と、を備え、電力監視制御装置３は、電力監視制御用電源装置２により電源電圧が供給され、電源電圧に重畳された伝送信号により、電力線搬送にて送受信を行う第３の送受信部３２と、第３の送受信部３２により送受信された伝送信号に基づき受配電設備６の監視制御を行う入出力部３４と、を備えるので、伝送用ケーブルの数量を軽減することができる電力監視制御システム、電力監視制御用電源装置、電力監視制御装置を提供することができる。 [1-3. effect]
(1) According to the present embodiment, the power monitoring and control power supply device 2 performs the transmission and reception of the transmission signal with the central monitoring device 7 that monitors the power, and the power supply that supplies the power supply voltage. Based on the transmission signals of the voltage output unit 22 and the central monitoring device 7 transmitted and received by the first transmission / reception unit 21, the transmission signal is superimposed on the power supply voltage supplied by the power supply voltage output unit 22 and transmitted by power line carrier The power monitoring and control device 3 is supplied with a power supply voltage by the power monitoring and control power supply device 2, and is transmitted to the power line by a transmission signal superimposed on the power supply voltage. And the input / output unit 34 for monitoring and controlling the power distribution facility 6 based on the transmission signal transmitted / received by the third transmission / reception unit 32. Therefore, the number of transmission cables can be reduced. Reduce Power monitoring control system capable Rukoto, the power monitoring control power supply unit, it is possible to provide a power monitoring control device.

本実施形態によれば、伝送用ケーブルの数量を軽減することができるので、ケーブルの材料費のみならず、ケーブルの施工、ケーブルを敷設するためのケーブルラックやケーブルピット等の施工等にかかるコストおよび作業を軽減することができる。   According to the present embodiment, since the number of transmission cables can be reduced, not only the material cost of the cables but also the cost of installation of the cables, installation of the cable rack for laying the cables, cable pits, etc. And work can be reduced.

また、本実施形態によれば、伝送用ケーブルの数量を軽減することができるので、伝送用ケーブルにおける断線等の故障頻度を軽減することができる。伝送用ケーブルの故障が発生した場合、電力監視制御装置３と中央監視装置７間の伝送を行うことができなくなり、その結果、電力監視制御装置３に対し、伝送による適切な指示を行うことができなくなるが、このような不具合の発生頻度を軽減することができる。   Further, according to the present embodiment, since the number of transmission cables can be reduced, the frequency of failures such as disconnection in the transmission cables can be reduced. If a failure occurs in the transmission cable, transmission can not be performed between the power monitoring and control device 3 and the central monitoring device 7. As a result, the power monitoring and control device 3 can be appropriately instructed by transmission. Although this can not be done, the frequency of occurrence of such problems can be reduced.

また、多数の伝送用ケーブルが用いられた場合、故障個所を特定するのに時間と手間を要するが、本実施形態によれば、伝送用ケーブルの数量を軽減することができるので、故障個所を特定する時間と手間を軽減することができる。   In addition, when a large number of transmission cables are used, it takes time and effort to identify the failure point, but according to the present embodiment, the number of transmission cables can be reduced. It can reduce the time and effort to identify.

（２）本実施形態によれば、電力監視制御装置３は、供給された電源電圧の監視を行う電源監視部３３をさらに備えるので、迅速に電力監視制御装置３に供給される電源の不具合を検出することができる。電力監視制御装置３に供給される電源が喪失した場合、受配電設備６の制御を行うことができなくなるが、迅速に電力監視制御装置３に供給される電源の不具合を検出することにより、受配電設備６の制御を行うことができない時間を短縮することができる。 (2) According to the present embodiment, since the power monitoring and control device 3 further includes the power supply monitoring unit 33 that monitors the supplied power supply voltage, the problem of the power supply supplied to the power monitoring and control device 3 quickly is It can be detected. If the power supplied to the power monitoring and control device 3 is lost, control of the power receiving and distribution facility 6 can not be performed, but it is possible to receive the power by quickly detecting a defect in the power supplied to the power monitoring and control device 3. The time when the control of the distribution facility 6 can not be performed can be shortened.

従来の電力監視制御システムにおいて、電力監視制御装置３に供給される電源は、通常の交流電力であった。電力系統の不具合により、電力監視制御装置３に供給される交流電力による電源が喪失する場合があった。このように電源の喪失が発生した場合、電力監視制御装置３は、受配電設備６に対し、適切な制御を行うことができなくなり不都合であった。本実施形態によれば、電力監視制御装置３に無停電にて電力監視制御用電源装置２から電源が供給されるので、上記のような不都合を避けるけることができる。   In the conventional power monitoring and control system, the power supplied to the power monitoring and control apparatus 3 is normal AC power. There was a case where the power supply by the AC power supplied to the power monitoring and control device 3 was lost due to the failure of the power system. As described above, when a loss of power occurs, the power monitoring and control apparatus 3 can not perform appropriate control on the power receiving and distributing facility 6, which is disadvantageous. According to the present embodiment, since the power monitoring and control device 3 is supplied with power from the power monitoring and control power supply device 2 without power failure, the above-mentioned inconvenience can be avoided.

また、従来の電力監視制御システムにおいて、メンテナンス時等において、系統の遮断器が開路状態とされ、電力監視制御装置３に電源の供給が停止されてしまう場合があった。このような電源供給の停止により、電力監視制御装置３は、受配電設備６に対し、適切な制御を行うことができなくなり不都合であった。本実施形態によれば、電力監視制御装置３に無停電にて電力監視制御用電源装置２から電源が供給されるので、上記のような不都合を避けることができる。   Further, in the conventional power monitoring and control system, the circuit breaker of the system may be brought into an open state at the time of maintenance or the like, and the power monitoring and control device 3 may stop supplying power. Due to the stop of the power supply, the power monitoring and control apparatus 3 can not properly control the power receiving and distributing facility 6, which is disadvantageous. According to the present embodiment, since the power monitoring and control device 3 is supplied with power from the power monitoring and control power supply device 2 without interruption, the above-mentioned inconvenience can be avoided.

さらに、本実施形態によれば、仮に電力監視制御装置３に電源が供給されなくなったとしても、供給された電源電圧の監視を行う電源監視部３３を備えるので、迅速に電力監視制御装置３に供給される電源の不具合を検出することができる。   Furthermore, according to the present embodiment, even if power is not supplied to the power monitoring and control apparatus 3, the power supply monitoring unit 33 that monitors the supplied power supply voltage is provided. It is possible to detect a fault in the supplied power.

［２．他の実施形態］
変形例を含めた実施形態を説明したが、これらの実施形態は例として提示したものであって、発明の範囲を限定することを意図していない。これら実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略や置き換え、変更を行うことができる。これらの実施形態やその変形は、発明の範囲や要旨に含まれると同様に、特許請求の範囲に記載された発明とその均等の範囲に含まれるものである。以下は、その一例である。 [2. Other embodiments]
While the embodiments have been described including variations, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in other various forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the invention described in the claims and the equivalents thereof as well as included in the scope and the gist of the invention. The following is an example.

（１）上記実施形態では、送受信部２１、２３により送受信される伝送信号は、データＤ１にかかる受配電設備６の運転状況に関する情報、データＤ２にかかる受配電設備６を制御するコマンドであるとしたが、送受信される伝送信号は、これに限られない。送受信される伝送信号は、電力監視制御に関するその他の情報であってもよい。 (1) In the above embodiment, it is assumed that the transmission signals transmitted and received by the transmission / reception units 21 and 23 are information related to the operating condition of the power distribution facility 6 according to the data D1, and a command for controlling the power distribution facility 6 according to the data D2. However, the transmission signal to be transmitted and received is not limited to this. The transmission signal to be transmitted and received may be other information regarding power monitoring and control.

（２）上記実施形態では、中央制御装置７により送信されるデータＤ２により、受配電設備６の動作が制御されるものとしたが、受配電設備６を制御するコマンドは、これに限られない。受配電設備６を制御するコマンドは、電力監視制御装置３にて独自に作成されるものを含んでいてもよい。 (2) In the above embodiment, although the operation of the power receiving and distributing facility 6 is controlled by the data D2 transmitted by the central control unit 7, the command for controlling the power receiving and distributing facility 6 is not limited to this. . The command for controlling the power distribution equipment 6 may include one that is uniquely generated by the power monitoring and control device 3.

（３）上記実施形態では、電源監視部３３が、電力供給線４の電源電圧に重畳された、データＤ２の電力線搬送にかかる伝送信号のキャリアを一定時間受信しない場合、電力監視制御用電源装置２から出力される電源が喪失されたものと判断するようにしたが、電源監視部３３が、電力監視制御用電源装置２から出力される電源電圧を監視し、電源の喪失を判断するようにしてもよい。例えば、電源監視部３３を、アナログ−デジタル変換回路等により構成し、電源監視部３３が、電力供給線４の電圧、電流または周波数を検出し、電源電圧の異常を検出するようにしてもよい。 (3) In the above embodiment, when the power supply monitoring unit 33 does not receive the carrier of the transmission signal related to the power line conveyance of the data D2 superimposed on the power supply voltage of the power supply line 4, the power monitoring control power supply device Although it is determined that the power source output from 2 is lost, the power source monitoring unit 33 monitors the power source voltage output from the power monitoring control power source device 2 and determines that the power source is lost. May be For example, the power supply monitoring unit 33 may be configured by an analog-digital conversion circuit or the like, and the power supply monitoring unit 33 may detect the voltage, current, or frequency of the power supply line 4 to detect an abnormality in the power supply voltage. .

または、電源監視部３３によらず、送受信部３２が、電力供給線４の電源電圧に重畳された、データＤ２の電力線搬送にかかる伝送信号を一定時間受信しない場合、電力監視制御用電源装置２から出力される電源が喪失されたものと判断するようにしてもよい。   Alternatively, regardless of the power supply monitoring unit 33, when the transmission / reception unit 32 does not receive, for a certain period of time, a transmission signal related to power line conveyance of the data D2 superimposed on the power supply voltage of the power supply line 4, the power supply device 2 for power monitoring control It may be determined that the power output from the terminal has been lost.

（４）上記実施形態では、電力監視制御用電源装置２から出力される電源が喪失されたと判断した場合に、制御部３５は、入出力部３４から受配電設備６に対し、フェールセーフとなる指令の送信を行うものとした。しかしながら、電力監視制御用電源装置２から出力される電源が喪失されたと判断した場合の処理は、これに限られない。電力監視制御用電源装置２から出力される電源が喪失されたと判断した場合、制御部３５は、他の電源装置に切替える制御を行うようにしてもよい。 (4) In the above embodiment, when it is determined that the power output from the power monitoring control power supply device 2 is lost, the control unit 35 is fail safe from the input / output unit 34 to the power receiving / distribution facility 6 It shall transmit the command. However, the process when it is determined that the power output from the power monitoring control power supply 2 is lost is not limited to this. If it is determined that the power output from the power monitoring control power supply device 2 is lost, the control unit 35 may perform control to switch to another power supply device.

１・・・電力監視制御システム
２・・・電力監視制御用電源装置
３、３ａ、３ｂ、３ｎ・・・電力監視制御装置
４、４ａ、４ｂ、４ｎ・・・電力供給線
５、５ａ、５ｂ、５ｃ・・・収納盤
６、６ａ、６ｂ、６ｃ・・・受配電設備
７・・・中央制御装置
８・・・通信回線
２１・・・送受信部
２２・・・電源電圧出力部
２３・・・送受信部
２４・・・制御部
３１・・・電源部
３２・・・送受信部
３３・・・電源監視部
３４・・・入出力部
３５・・・制御部

1 Power monitoring and control system 2 Power monitoring and control power supply 3, 3a, 3b, 3n Power monitoring and control device 4, 4a, 4b, 4n Power supply line 5, 5a, 5b , 5c ... storage board 6, 6a, 6b, 6c ... power distribution facility 7 ... central control unit 8 ... communication line 21 ... transmission / reception unit 22 ... power supply voltage output unit 23 ... · Transmission / reception unit 24 · · · Control unit 31 · · · Power supply unit 32 · · · Transmission and reception unit 33 · · · Power monitoring unit 34 · · · I / O unit 35 · · · control unit

Claims (5)

電力の監視を行う中央監視装置と伝送信号の送受信を行う第１の送受信部と、
電源電圧の供給を行う電源電圧出力部と、
前記第１の送受信部により送受信された前記中央監視装置との伝送信号に基づき、前記電源電圧出力部により供給される電源電圧に伝送信号を重畳させ、電力線搬送にて伝送信号の送受信を行う第２の送受信部と、
を備えた電力監視制御用電源装置と、
前記電力監視制御用電源装置により前記電源電圧が供給され、
前記電源電圧に重畳された伝送信号により、電力線搬送にて送受信を行う第３の送受信部と、
前記第３の送受信部により送受信された伝送信号に基づき受配電設備の監視制御を行う入出力部と、
を備えた電力監視制御装置と、
を有する電力監視制御システム。 A first transmission / reception unit that transmits / receives a transmission signal to / from a central monitoring device that monitors power;
A power supply voltage output unit that supplies a power supply voltage;
The transmission signal is superimposed on the power supply voltage supplied by the power supply voltage output unit based on the transmission signal with the central monitoring device transmitted and received by the first transmission / reception unit, and transmission / reception of the transmission signal is performed by power line carrier 2 transceiver unit,
A power supply device for power monitoring and control;
The power supply voltage is supplied by the power monitoring control power supply device.
A third transmission / reception unit that performs transmission / reception on a power line carrier by a transmission signal superimposed on the power supply voltage;
An input / output unit that performs monitoring control of power distribution equipment based on the transmission signal transmitted and received by the third transmission / reception unit;
A power monitoring and control device comprising:
Power monitoring and control system. 前記電力監視制御装置は、供給された前記電源電圧の監視を行う電源監視部をさらに備える、
請求項１に記載の電力監視制御システム。 The power monitoring and control apparatus further includes a power supply monitoring unit that monitors the supplied power supply voltage.
The power monitoring control system according to claim 1. 前記電力監視制御装置は、第３の送受信部による受信が行われない場合に、前記電源電圧が異常であると判断する、
請求項１に記載の電力監視制御システム。 The power monitoring and control apparatus determines that the power supply voltage is abnormal when reception is not performed by a third transmission / reception unit.
The power monitoring control system according to claim 1. 電力の監視を行う中央監視装置と伝送信号の送受信を行う第１の送受信部と、
電源電圧の供給を行う電源電圧出力部と、
前記第１の送受信部により送受信された前記中央監視装置との伝送信号に基づき、前記電源電圧出力部により供給される電源電圧に伝送信号を重畳させ、電力線搬送にて伝送信号の送受信を行う第２の送受信部と、
を備えた電力監視制御用電源装置。 A first transmission / reception unit that transmits / receives a transmission signal to / from a central monitoring device that monitors power;
A power supply voltage output unit that supplies a power supply voltage;
The transmission signal is superimposed on the power supply voltage supplied by the power supply voltage output unit based on the transmission signal with the central monitoring device transmitted and received by the first transmission / reception unit, and transmission / reception of the transmission signal is performed by power line carrier 2 transceiver unit,
Power supply unit for power monitoring and control. 電力監視制御用電源装置により電源電圧が供給され、
前記電源電圧に重畳された伝送信号により、電力線搬送にて送受信を行う送受信部と、
前記送受信部により送受信された伝送信号に基づき電力設備の監視制御を行う入出力部と、
を備えた電力監視制御装置。

Power supply voltage is supplied by the power monitoring control power supply unit.
A transmission / reception unit that performs transmission / reception on a power line carrier by a transmission signal superimposed on the power supply voltage;
An input / output unit that performs monitoring control of a power facility based on a transmission signal transmitted / received by the transmission / reception unit;
Power monitoring and control device with.

JP2017184486A 2017-09-26 2017-09-26 Power monitoring control system, power monitoring control power supply device, and power monitoring control device Pending JP2019062620A (en)

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