JP2024007278A

JP2024007278A - Changeover switch built-in board and power supply system

Info

Publication number: JP2024007278A
Application number: JP2022108680A
Authority: JP
Inventors: 豪朗伊藤; Takeaki Ito
Original assignee: Tempearl Industrial Co Ltd
Current assignee: Tempearl Industrial Co Ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2024-01-18

Abstract

To provide a changeover switch built-in board capable of surely suppressing a consumption of a commercial power in response to a request of a dropping DR, and provide a technique related to the same.SOLUTION: A power supply system 1 comprises: a commercial power supply system 2 containing a commercial power supply 21; a power storage system 3 containing a solar light power generation device 31 and a power storage battery 33; a load system 4; a power supply automatic switch board 5 containing a changeover switch 50; and a remote operation switch device 7 containing an instruction reception part. An aggregator 6 activates a dropping DR. The changeover switch 50 is electrically connected to each of the commercial power supply system 2, the power storage system 3, and the load system 4, switches a connection state of the commercial power supply system 2 and the load system 4, and switches the connection state of the power storage system 3 and the load system 4. The changeover switch 50 electrically separates the commercial power supply system 2 from the load system 4 under the condition that the instruction reception part of the remote operation switch device 7 receives the dropping DR, and electrically connects the power storage system 3 and the load system 4.SELECTED DRAWING: Figure 1

Description

本発明は、下げＤＲに応じて電源を切り替え可能な切替開閉器内蔵盤及びこれに関連する技術に関する。 TECHNICAL FIELD The present invention relates to a switching switch built-in panel that can switch the power supply according to lowered DR, and related technology.

企業・自治体などが所有する生産設備や自家用発電設備、蓄電池やＥＶ（電気自動車）などのエネルギーリソースを相互につなぎ、ＩｏＴ技術を活用して制御することで一つの発電所のように機能させるＶＰＰ（Virtual Power Plant）が知られている。 A VPP that interconnects energy resources such as production equipment, private power generation equipment, storage batteries, and EVs (electric vehicles) owned by companies and local governments, and controls them using IoT technology to function like a single power plant. (Virtual Power Plant) is known.

また、需要家側のエネルギーリソースの保有者もしくは第三者が、そのエネルギーリソースを制御することで、電力需要をコントロールする仕組みとしてＤＲ（Demand Response）が知られている。ＤＲは、需要制御のパターンによって、需要を減らす「下げＤＲ」と、需要を増やす「上げＤＲ」との二つに区分される。 Further, DR (Demand Response) is known as a mechanism in which the owner of the energy resource on the consumer side or a third party controls the power demand by controlling the energy resource. DR is classified into two types depending on the demand control pattern: "down DR" which reduces demand and "up DR" which increases demand.

特許文献１では、既設の設備をＶＰＰに対応させることのできる電力制御ユニット、及び分電盤システムが開示されている。具体的には、電力制御ユニット（１）は、指令受信部（１１１）と出力部（１２）とを備えている（特許文献１の図１参照）。指令受信部（１１１）は、アグリゲータ（Ａ１）からの指令を受信する。出力部（１２）は、分散型電源（４）から出力される電力に関する電力情報、及びアグリゲータ（Ａ１）からの指令に基づいて、分電盤（２）に電気的に接続される負荷（５）を制御する制御信号を出力する。 Patent Document 1 discloses a power control unit and a distribution board system that can make existing equipment compatible with VPP. Specifically, the power control unit (1) includes a command receiving section (111) and an output section (12) (see FIG. 1 of Patent Document 1). The command receiving unit (111) receives commands from the aggregator (A1). The output unit (12) outputs a load (5) electrically connected to the distribution board (2) based on power information regarding the power output from the distributed power source (4) and a command from the aggregator (A1). ) outputs a control signal to control the

アグリゲーター（Ａ１）からの指令が下げＤＲの場合、出力部（１２）は、需要機器（６）の動作を抑制させる又は停止させる制御指令を含む制御信号を、対応する需要機器（６）に向けて送信する。あるいは、出力部（１２）は、蓄電池（４２）を放電させる制御指令を含む制御信号を、蓄電池（４２）に向けて送信する。これにより、負荷（５）の消費電力が低減する。 When the command from the aggregator (A1) is lower DR, the output unit (12) directs a control signal including a control command to suppress or stop the operation of the demand equipment (6) to the corresponding demand equipment (6). and send. Alternatively, the output unit (12) transmits a control signal including a control command for discharging the storage battery (42) to the storage battery (42). This reduces the power consumption of the load (5).

一方、アグリゲーター（Ａ１）からの指令が上げＤＲの場合、出力部（１２）は、需要機器（６）での電力消費を増大させる制御指令を含む制御信号を、対応する需要機器（６）に向けて送信する。あるいは、蓄電池（４２）を充電させる制御指令を含む制御信号を、蓄電池（４２）に向けて送信する。これにより、負荷（５）の消費電力が増大する。 On the other hand, when the command from the aggregator (A1) is raised DR, the output unit (12) sends a control signal containing a control command to increase the power consumption in the demand equipment (6) to the corresponding demand equipment (6). Send to. Alternatively, a control signal including a control command to charge the storage battery (42) is transmitted to the storage battery (42). This increases the power consumption of the load (5).

特開２０２１－１００３２６号公報JP 2021-100326 Publication

上述した特許文献１に記載の技術によれば、アグリゲーターから下げＤＲを受信した場合、需要機器（６）の動作を抑制又は停止させたり、蓄電池（４２）を放電させたりすることで、電力系統（９）からの電力供給が抑制される。 According to the technology described in Patent Document 1 mentioned above, when a lower DR is received from an aggregator, the operation of the demand equipment (6) is suppressed or stopped, or the storage battery (42) is discharged, thereby improving the power system. (9) The power supply from (9) is suppressed.

しかしながら、特許文献１に記載の技術では、下げＤＲの指令を受信した場合であっても電力系統（９）からの電力供給が完全には停止せず、電力系統（９）からの電力を一定程度消費し続ける。そのため、下げＤＲの要請に対して商用電力の消費を十分に抑制できないという問題がある。 However, with the technology described in Patent Document 1, even when a lower DR command is received, the power supply from the power grid (9) is not completely stopped, and the power from the power grid (9) is kept constant. Continue to consume some amount. Therefore, there is a problem that the consumption of commercial power cannot be sufficiently suppressed in response to the request for lower DR.

そこで、本発明は、下げＤＲの要請に対して商用電力の消費を確実に抑制することが可能な切替開閉器内蔵盤及びこれに関連する技術を提供することを目的とする。 SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a switching switch built-in panel and related technology that can reliably suppress commercial power consumption in response to the request for lower DR.

上記目的を達成するために、本発明は、商用電源を含む商用電源系統と、発電装置及び蓄電池を含む蓄電系統と、負荷を含む負荷系統と、前記商用電源系統、前記蓄電系統及び前記負荷系統の各々に電気的に接続される切替開閉器であって、前記商用電源系統と前記負荷系統との接続状態を切り替えると共に前記蓄電系統と前記負荷系統との接続状態を切り替える切替開閉器を含む電源自動切替盤と、下げＤＲ（Demand Response）を発動するアグリゲーターと、前記アグリゲーターからネットワークを介して前記下げＤＲを受信する指令受信部と、を備え、前記切替開閉器は、前記指令受信部が前記下げＤＲを受信していることを条件として、前記商用電源系統と前記負荷系統とを電気的に切り離し、かつ、前記蓄電系統と前記負荷系統とを電気的に接続することを特徴とする電力供給システムを提供している。 In order to achieve the above object, the present invention provides a commercial power supply system including a commercial power supply, a power storage system including a power generation device and a storage battery, a load system including a load, the commercial power supply system, the power storage system, and the load system. A power supply including a switching switch electrically connected to each of the switching switches, the switching switch electrically connecting the commercial power supply system and the load system, and switching the connection state between the electricity storage system and the load system. The switching switch includes an automatic switching board, an aggregator that activates a lowering DR (Demand Response), and a command receiving unit that receives the lowering DR from the aggregator via a network, and the switching switch is configured such that the command receiving unit A power supply characterized by electrically disconnecting the commercial power supply system and the load system, and electrically connecting the power storage system and the load system, on the condition that a lowered DR is received. system is provided.

ここで、前記商用電源系統と前記切替開閉器とに電気的に接続される第一端子を含む第一回路部と、前記蓄電系統と前記切替開閉器とに電気的に接続される第二端子を含む第二回路部と、前記第一端子に電圧を出力する通常運転モードと前記第二端子に電圧を出力する自立運転モードとを切替可能なパワーコンディショナーと、を更に備え、前記商用電源系統と前記第一回路との間には、前記指令受信部を含む遠隔操作用開閉器が設けられ、前記遠隔操作用開閉器は、前記指令受信部が前記下げＤＲを受信している間、前記商用電源系統と前記切替開閉器とを電気的に切り離し、前記商用電源系統からの電力供給を遮断し、前記パワーコンディショナーは、前記商用電源系統からの電力供給が遮断している間、前記自立運転モードに切り替わり、前記切替開閉器は、前記第二端子に電圧が入力されたことに応答して、前記商用電源系統と前記負荷系統とを電気的に切り離し、かつ、前記蓄電系統と前記負荷系統とを電気的に接続するのが好ましい。 Here, a first circuit section including a first terminal electrically connected to the commercial power supply system and the switching switch, and a second terminal electrically connected to the electricity storage system and the switching switch. and a power conditioner capable of switching between a normal operation mode in which a voltage is output to the first terminal and a self-sustaining operation mode in which a voltage is output to the second terminal, and the first circuit, a remote control switch including the command receiving section is provided, and the remote control switch is configured to control the lowering DR while the command receiving section is receiving the lowering DR. The switching switch is electrically disconnected from the commercial power system to cut off the power supply from the commercial power system, and the power conditioner operates in the self-sustaining mode while the power supply from the commercial power system is cut off. mode, the switching switch electrically disconnects the commercial power supply system and the load system in response to voltage being input to the second terminal, and electrically disconnects the power storage system and the load system. It is preferable to electrically connect them.

また、前記商用電源系統と前記切替開閉器とに電気的に接続される第一端子を含む第一回路部と、前記蓄電系統と前記切替開閉器とに電気的に接続される第二端子を含む第二回路部と、前記第一端子に電圧を出力する通常運転モードと前記第二端子に電圧を出力する自立運転モードとを切替可能なパワーコンディショナーと、を更に備え、前記指令受信部は、前記パワーコンディショナーに設けられる第一指令受信部と、前記切替開閉器に設けられる第二指令受信部とを有し、前記パワーコンディショナーは、前記第一指令受信部が前記下げＤＲを受信している間、前記自立運転モードに切り替わり、前記切替開閉器は、前記第二指令受信部が前記下げＤＲを受信している間に前記第二端子に電圧が入力されると、前記商用電源系統と前記負荷系統とを電気的に切り離し、かつ、前記蓄電系統と前記負荷系統とを電気的に接続するのが好ましい。 A first circuit section including a first terminal electrically connected to the commercial power supply system and the switching switch, and a second terminal electrically connected to the electricity storage system and the switching switch. and a power conditioner capable of switching between a normal operation mode in which a voltage is output to the first terminal and a self-sustaining operation mode in which a voltage is output to the second terminal, the command receiving unit , the power conditioner has a first command receiving section provided in the power conditioner and a second command receiving section provided in the switching switch, and the power conditioner is configured such that the first command receiving section receives the lowering DR. When a voltage is input to the second terminal while the second command receiving unit is receiving the lowering DR, the switching switch switches to the self-sustaining mode while the second command receiving unit is receiving the lowering DR. It is preferable that the power storage system and the load system are electrically separated from each other, and the power storage system and the load system are electrically connected.

また、前記蓄電池の電池残量を測定する電池残量測定部を更に備え、前記切替開閉器は、前記電池残量が閾値以上であることを追加条件として、前記商用電源系統と前記負荷系統とを電気的に切り離し、かつ、前記蓄電系統と前記負荷系統とを電気的に接続するのが好ましい。 Further, the switching switch further includes a remaining battery level measuring unit that measures a remaining battery level of the storage battery, and the switching switch is configured to switch between the commercial power system and the load system, with the additional condition that the remaining battery level is equal to or higher than a threshold value. It is preferable to electrically separate the power storage system and the load system, and to electrically connect the power storage system and the load system.

更に、前記切替開閉器は、前記下げＤＲに伴う前記蓄電系統の使用電力量を測定する使用電力測定部と、前記使用電力量を前記アグリゲーターに送信するための送信部と、を備えるのが好ましい。 Furthermore, it is preferable that the switching switch includes a power usage measuring section that measures the amount of power used by the power storage system associated with the lowering DR, and a transmitting section that transmits the amount of power used to the aggregator. .

また、本発明は、商用電源を含む商用電源系統、発電装置及び蓄電池を含む蓄電系統及び負荷を含む負荷系統の各々に電気的に接続される切替開閉器であって、前記商用電源系統と前記負荷系統との接続状態を切り替えると共に前記蓄電系統と前記負荷系統との接続状態を切り替える切替開閉器と、アグリゲーターから発動される下げＤＲ（Demand Response）を受信する指令受信部と、を備え、前記切替開閉器は、前記指令受信部が前記下げＤＲを受信していることを条件として、前記商用電源系統と前記負荷系統とを電気的に切り離し、かつ、前記蓄電系統と前記負荷系統とを電気的に接続することを特徴とする切替開閉器内蔵盤を更に提供している。 The present invention also provides a switching switch that is electrically connected to each of a commercial power supply system including a commercial power supply, a power storage system including a power generation device and a storage battery, and a load system including a load, A switching switch that switches a connection state with a load system and also switches a connection state between the power storage system and the load system, and a command receiving unit that receives a lowering DR (Demand Response) activated from an aggregator, The switching switch electrically disconnects the commercial power supply system and the load system, and disconnects the power storage system and the load system from each other, on the condition that the command receiving unit receives the lowering DR. The present invention further provides a panel with a built-in switching switch, which is characterized in that it can be electrically connected.

本発明によれば、指令受信部が下げＤＲを受信していることを条件として、商用電源系統と負荷系統とが電気的に切り離され、かつ、蓄電系統と負荷系統とが電気的に接続される。すなわち、下げＤＲを受信している間、商用電源系統からの電力が負荷系統に一切供給されない。そのため、下げＤＲの要請に対して商用電力の消費を確実に抑制することが可能である。 According to the present invention, the commercial power supply system and the load system are electrically disconnected, and the power storage system and the load system are electrically connected, on the condition that the command receiving unit receives the down DR. Ru. That is, while receiving the down DR, no power from the commercial power system is supplied to the load system. Therefore, it is possible to reliably suppress the consumption of commercial power in response to the request for lower DR.

なお、本発明の切替開閉器内蔵盤及び電力供給システムのように、指令受信部が下げＤＲを受信していることを条件として、商用電源系統と負荷系統とが電気的に切り離され、かつ、蓄電系統と負荷系統とが電気的に接続される点は、上述した特許文献１には全く記載されていない。 In addition, as in the switching switch built-in panel and power supply system of the present invention, on the condition that the command receiving unit receives the down DR, the commercial power system and the load system are electrically separated, and The point that the power storage system and the load system are electrically connected is not described in Patent Document 1 mentioned above at all.

本発明の第１実施形態に係る電力供給システムのシステム構成を示す概略図。1 is a schematic diagram showing a system configuration of a power supply system according to a first embodiment of the present invention. 第１実施形態に係る電源自動切替盤の概略構成を示す機能ブロック図。FIG. 1 is a functional block diagram showing a schematic configuration of an automatic power switchboard according to the first embodiment. 第１実施形態に係る遠隔操作用開閉器の概略構成を示す機能ブロック図。FIG. 1 is a functional block diagram showing a schematic configuration of a remote control switch according to a first embodiment. 第１実施形態における下げＤＲ受信時の回路切替動作を示すフローチャート。7 is a flowchart showing a circuit switching operation when receiving a down DR in the first embodiment. 第１実施形態における商用電力供給時の負荷系統への電流の流れを示す概略図。FIG. 3 is a schematic diagram showing the flow of current to a load system when commercial power is supplied in the first embodiment. 第１実施形態における商用電力非供給時の切替開閉器の接続状態を示す概略図。FIG. 3 is a schematic diagram showing the connection state of the switching switch when commercial power is not supplied in the first embodiment. 第１実施形態における商用電力非供給時の負荷系統への電流の流れを示す概略図。FIG. 2 is a schematic diagram showing the flow of current to a load system when commercial power is not supplied in the first embodiment. 第２実施形態に係る電力供給システムのシステム構成を示す概略図。FIG. 2 is a schematic diagram showing the system configuration of a power supply system according to a second embodiment. 第２実施形態に係る電源自動切替盤の概略構成を示す機能ブロック図。FIG. 2 is a functional block diagram showing a schematic configuration of an automatic power switchboard according to a second embodiment. 第２実施形態に係るパワーコンディショナーの概略構成を示す機能ブロック図。FIG. 2 is a functional block diagram showing a schematic configuration of a power conditioner according to a second embodiment. 第２実施形態における下げＤＲ受信時の回路切替動作を示すフローチャート。12 is a flowchart showing a circuit switching operation when receiving a down DR in the second embodiment. 第２実施形態における商用電力供給時の負荷系統への電流の流れを示す概略図。FIG. 7 is a schematic diagram showing the flow of current to a load system when commercial power is supplied in the second embodiment. 第２実施形態における商用電力非供給時の切替開閉器の接続状態を示す概略図。FIG. 7 is a schematic diagram showing the connection state of the switching switch when commercial power is not supplied in the second embodiment. 第２実施形態における商用電力非供給時の負荷系統への電流の流れを示す概略図。FIG. 7 is a schematic diagram showing the flow of current to a load system when commercial power is not supplied in the second embodiment.

＜１．第１実施形態＞
本発明の第１実施形態に係る切替開閉器内蔵盤及び電力供給システムについて、図１から図７に基づいて説明する。なお、以下では、電力供給システムの一例として、図１に示す電力供給システム１を例示する。また、切替開閉器内蔵盤の一例として、図１に示す電源自動切替盤５を例示する。 <1. First embodiment>
A switching switch built-in panel and a power supply system according to a first embodiment of the present invention will be described based on FIGS. 1 to 7. In addition, below, the power supply system 1 shown in FIG. 1 is illustrated as an example of a power supply system. Further, as an example of a switch built-in switchboard, an automatic power switchboard 5 shown in FIG. 1 is illustrated.

図１に示すように、電力供給システム１は、商用電源系統２と、蓄電系統３と、負荷系統４と、電源自動切替盤５と、アグリゲーター６と、遠隔操作用開閉器７とを備えている。 As shown in FIG. 1, the power supply system 1 includes a commercial power supply system 2, a power storage system 3, a load system 4, an automatic power switchboard 5, an aggregator 6, and a remote control switch 7. There is.

商用電源系統２は、電力会社からの電力系統であり、電力会社の商用電源２１を備えている。蓄電系統３は、太陽光発電装置３１と、蓄電池３３と、パワーコンディショナー３５とを備えて構成される。負荷系統４は、住宅用分電盤などで構成され、負荷４１を備えている。 The commercial power supply system 2 is a power system from an electric power company, and includes a commercial power supply 21 of the electric power company. The power storage system 3 includes a solar power generation device 31, a storage battery 33, and a power conditioner 35. The load system 4 is composed of a residential distribution board and the like, and includes a load 41.

電源自動切替盤５は、切替開閉器５０と、第１回路部５１と、第２回路部５２と、中継回路部５３と、負荷回路部５４とを備えて構成される。 The automatic power supply switching board 5 includes a switching switch 50, a first circuit section 51, a second circuit section 52, a relay circuit section 53, and a load circuit section 54.

切替開閉器５０は、図１に示す商用電力供給状態ＳＴ１と、図６に示す商用電力非供給状態ＳＴ２とを切り替える開閉器である。図１に示す商用電力供給状態ＳＴ１は、商用電源２１の電力が負荷系統４に供給される接続状態である。また、図６に示す商用電力非供給状態ＳＴ２は、商用電源２１の電力が負荷系統４に供給されない接続状態である。 The switching switch 50 is a switch that switches between a commercial power supply state ST1 shown in FIG. 1 and a commercial power non-supply state ST2 shown in FIG. 6. A commercial power supply state ST1 shown in FIG. 1 is a connection state in which power from the commercial power source 21 is supplied to the load system 4. Further, a commercial power non-supply state ST2 shown in FIG. 6 is a connection state in which the power of the commercial power source 21 is not supplied to the load system 4.

第１回路部５１は、商用電源系統２と切替開閉器５０とに電気的に接続される回路である。第１回路部５１は、商用電源系統２と切替開閉器５０と中継回路部５３に電気的に接続される第１端子部５１１を備えている。 The first circuit section 51 is a circuit electrically connected to the commercial power supply system 2 and the switching switch 50. The first circuit section 51 includes a first terminal section 511 that is electrically connected to the commercial power supply system 2, the switching switch 50, and the relay circuit section 53.

第２回路部５２は、蓄電系統３と切替開閉器５０とに電気的に接続される回路である。第２回路部５２は、蓄電系統３と切替開閉器５０とに電気的に接続される第２端子部５２１を備えている。 The second circuit section 52 is a circuit electrically connected to the power storage system 3 and the switching switch 50. The second circuit section 52 includes a second terminal section 521 that is electrically connected to the power storage system 3 and the switching switch 50.

中継回路部５３は、第１回路部５１に電気的に接続される回路である。中継回路部５３は、商用電力供給状態ＳＴ１において、蓄電系統３からの電力を商用電力に追加するための中継電気機器（図示せず）を備えている。 The relay circuit section 53 is a circuit electrically connected to the first circuit section 51. The relay circuit unit 53 includes a relay electrical device (not shown) for adding power from the power storage system 3 to commercial power in the commercial power supply state ST1.

負荷回路部５４は、負荷４１と切替開閉器５０とに電気的に接続される回路である。負荷回路部５４は、切替開閉器５０からの電力を受ける負荷電気機器（図示せず）などを備えている。 The load circuit section 54 is a circuit electrically connected to the load 41 and the switching switch 50. The load circuit section 54 includes load electrical equipment (not shown) that receives power from the switching switch 50.

パワーコンディショナー３５は、太陽光発電装置３１や蓄電池３３の電気を交流に変換し、第１回路部５１または第２回路部５２に供給するための装置である。パワーコンディショナー３５は、商用電源系統２から電力が供給されている間は、蓄電系統３からの電圧を第１回路部５１の第１端子部５１１に出力する。以下では、パワーコンディショナー３５が蓄電系統３からの電圧を第１回路部５１の第１端子部５１１に出力することを、通常運転モードとも称する。 The power conditioner 35 is a device that converts electricity from the solar power generation device 31 and the storage battery 33 into alternating current and supplies it to the first circuit section 51 or the second circuit section 52. The power conditioner 35 outputs the voltage from the power storage system 3 to the first terminal section 511 of the first circuit section 51 while power is being supplied from the commercial power supply system 2 . Hereinafter, the output of the power conditioner 35 from the power storage system 3 to the first terminal section 511 of the first circuit section 51 will also be referred to as normal operation mode.

一方、パワーコンディショナー３５は、停電（すなわち、商用電源系統２からの電力供給が停止したこと）を検知すると、通常運転モードから自立運転モードに切り替わる。自立運転モードにおいて、パワーコンディショナー３５は、蓄電系統３の電圧を第２回路部５２の第２端子部５２１に出力する。 On the other hand, when the power conditioner 35 detects a power outage (that is, the power supply from the commercial power system 2 has stopped), the power conditioner 35 switches from the normal operation mode to the self-sustaining mode. In the self-sustaining mode, the power conditioner 35 outputs the voltage of the power storage system 3 to the second terminal section 521 of the second circuit section 52.

図２に示すように、電源自動切替盤５は、上述した切替開閉器５０に加え、使用電力測定部５０２と送信部５０４とを備えている。また、切替開閉器５０は、切替制御部５０３を備えている。なお、切替制御部５０３、使用電力測定部５０２及び送信部５０４の各部は、公知のコントローラーなどによって実現される。 As shown in FIG. 2, the automatic power switchboard 5 includes a power consumption measuring section 502 and a transmitting section 504 in addition to the above-mentioned switching switch 50. Further, the switching switch 50 includes a switching control section 503. Note that each of the switching control section 503, power consumption measurement section 502, and transmission section 504 is realized by a known controller or the like.

切替制御部５０３は、切替開閉器５０を商用電力供給状態ＳＴ１又は商用電力非供給状態ＳＴ２に切り替えるための処理部である。 The switching control unit 503 is a processing unit for switching the switching switch 50 to a commercial power supply state ST1 or a commercial power non-supply state ST2.

具体的には、切替制御部５０３は、商用電源系統２の電圧が第１回路部５１の第１端子部５１１に入力されている間、切替開閉器５０が商用電力供給状態ＳＴ１（図１）となるように切替開閉器５０を制御する。 Specifically, while the voltage of the commercial power supply system 2 is being input to the first terminal section 511 of the first circuit section 51, the switching control section 503 causes the switching switch 50 to be in the commercial power supply state ST1 (FIG. 1). The switching switch 50 is controlled so that.

図５に示すように、商用電力供給状態ＳＴ１では、商用電源系統２からの電力及び蓄電系統３からの電力が太破線矢印で示す経路を通って負荷４１に供給される。つまり、商用電力供給状態ＳＴ１では、商用電源系統２の電力に蓄電系統３からの電力を加えたものが負荷４１で消費される。 As shown in FIG. 5, in the commercial power supply state ST1, electric power from the commercial power supply system 2 and electric power from the power storage system 3 are supplied to the load 41 through the path shown by the thick broken line arrow. That is, in the commercial power supply state ST1, the load 41 consumes the sum of the power from the commercial power supply system 2 and the power from the power storage system 3.

一方、切替制御部５０３は、商用電源系統２の電圧が第１回路部５１の第１端子部５１１に入力されず、かつ、蓄電系統３の電圧が第２端子部５２１に入力されている間、切替開閉器５００が商用電力非供給状態ＳＴ２（図６）となるように切替開閉器５０を制御する。 On the other hand, while the voltage of the commercial power supply system 2 is not input to the first terminal section 511 of the first circuit section 51 and the voltage of the power storage system 3 is input to the second terminal section 521, the switching control section 503 , controls the switching switch 50 so that the switching switch 500 enters the commercial power non-supply state ST2 (FIG. 6).

図７に示すように、商用電力非供給状態ＳＴ２では、蓄電系統３からの電力が太破線矢印で示す経路を通って負荷４１に供給される。つまり、商用電力非供給状態ＳＴ２では、下げＤＲの要請に応じて、負荷４１が商用電源系統２から切り離され、蓄電系統３からの電力のみが負荷４１で消費される。 As shown in FIG. 7, in the commercial power non-supply state ST2, power from the power storage system 3 is supplied to the load 41 through a path indicated by a thick broken line arrow. That is, in the commercial power non-supply state ST2, the load 41 is disconnected from the commercial power supply system 2 in response to a request for lower DR, and only the power from the power storage system 3 is consumed by the load 41.

再び図２を参照する。使用電力測定部５０２は、下げＤＲの要請に応じて消費した蓄電系統３の電力に関して使用電力量を測定する処理部である。 Referring again to FIG. The power usage measuring unit 502 is a processing unit that measures the amount of power used regarding the power of the power storage system 3 consumed in response to a request for downgrading DR.

送信部５０４は、使用電力測定部５０２で測定した使用電力量をインターネット及びルーターを介してアグリゲーター６に送信する処理部である。 The transmitting unit 504 is a processing unit that transmits the amount of power used measured by the power used measuring unit 502 to the aggregator 6 via the Internet and the router.

再び図１を参照する。アグリゲーター６は、上げＤＲや下げＤＲを発動し、需要家の需要量を制御して電力の需要と供給のバランスを保つ事業者のコンピューターである。 Referring again to FIG. The aggregator 6 is a business operator's computer that activates up DR and down DR, controls the amount demanded by consumers, and maintains the balance between power demand and supply.

遠隔操作用開閉器７は、商用電源系統２と第１回路部５１との間に設けられる開閉器である。遠隔操作用開閉器７は、インターネット及びルーターを介してアグリゲーター６に接続されている。 The remote control switch 7 is a switch provided between the commercial power supply system 2 and the first circuit section 51. The remote control switch 7 is connected to the aggregator 6 via the Internet and a router.

遠隔操作用開閉器７がオン状態（接続された状態）の場合（図１参照）、電源自動切替盤５に対する商用電源系統２からの電力供給が許容される。一方、遠隔操作用開閉器７がオフ状態（切断された状態）の場合（図６参照）、電源自動切替盤５に対する商用電源系統２からの電力供給が停止する。つまり、遠隔操作用開閉器７をオフ状態にする（切断する）ことで、擬似的な停電（以下、疑似停電とも称する）が発生する。 When the remote control switch 7 is in the on state (connected state) (see FIG. 1), power supply from the commercial power system 2 to the automatic power switch board 5 is allowed. On the other hand, when the remote control switch 7 is in the OFF state (disconnected state) (see FIG. 6), the power supply from the commercial power system 2 to the automatic power switchboard 5 is stopped. That is, by turning off (cutting off) the remote control switch 7, a pseudo power outage (hereinafter also referred to as a pseudo power outage) occurs.

図３に示すように、遠隔操作用開閉器７は、指令受信部７１と、切替制御部７３と、電池残量測定部７５とを備えて構成される。なお、指令受信部７１、切替制御部７３及び電池残量測定部７５の各部は、公知のコントローラーなどによって実現される。 As shown in FIG. 3, the remote control switch 7 includes a command receiving section 71, a switching control section 73, and a battery remaining amount measuring section 75. Note that each part of the command receiving section 71, the switching control section 73, and the battery remaining amount measuring section 75 is realized by a known controller or the like.

指令受信部７１は、インターネット及びルーターを介して下げＤＲを電力抑制指令としてアグリゲーター６から受信する処理部である。また、電池残量測定部７５は、蓄電池３３の電池残量を測定する処理部である。 The command receiving unit 71 is a processing unit that receives the lowered DR as a power reduction command from the aggregator 6 via the Internet and the router. Further, the battery remaining amount measurement section 75 is a processing section that measures the remaining battery amount of the storage battery 33.

切替制御部７３は、指令受信部７１における下げＤＲ（電力抑制指令）の受信状況に応じて、遠隔操作用開閉器７の接続又は切断を切り替える処理部である。 The switching control unit 73 is a processing unit that switches connection or disconnection of the remote control switch 7 according to the reception status of the lower DR (power reduction command) in the command reception unit 71.

具体的には、切替制御部７３は、指令受信部７１が下げＤＲ（電力抑制指令）を受信していない場合に、遠隔操作用開閉器７を接続する。 Specifically, the switching control unit 73 connects the remote control switch 7 when the command receiving unit 71 has not received a lower DR (power reduction command).

一方、切替制御部７３は、指令受信部７１が下げＤＲ（電力抑制指令）を受信し且つ電池残量が閾値以上である場合に、遠隔操作用開閉器７を切断し、疑似停電を発生させる。 On the other hand, the switching control unit 73 disconnects the remote control switch 7 and causes a pseudo power outage when the command receiving unit 71 receives a lower DR (power reduction command) and the remaining battery level is equal to or higher than the threshold value. .

続いて、図４に示すフローチャートに沿って、下げＤＲ受信時の回路切替動作について詳細に説明する。 Next, the circuit switching operation when receiving a down DR will be described in detail along the flowchart shown in FIG.

アグリゲーター６からの下げＤＲ（電力抑制指令）を指令受信部７１（図３）が受信すると（ステップＳ１でＹＥＳ）、電池残量測定部７５（図３）は、蓄電池３３の電池残量を測定する（ステップＳ２）。 When the command receiving unit 71 (FIG. 3) receives the lowered DR (power reduction command) from the aggregator 6 (YES in step S1), the remaining battery power measuring unit 75 (FIG. 3) measures the remaining battery power of the storage battery 33. (Step S2).

ステップＳ２で測定された電池残量が予め設定された閾値以上であると判定されると（ステップＳ３でＹＥＳ）、切替制御部７３（図３）は、遠隔操作用開閉器７を切断し、疑似停電を発生（疑似停電モードＯＮ）させる（ステップＳ４）。 When it is determined that the remaining battery level measured in step S2 is equal to or higher than the preset threshold (YES in step S3), the switching control unit 73 (FIG. 3) disconnects the remote control switch 7, A pseudo power outage is generated (simulated power outage mode is turned on) (step S4).

疑似停電が発生すると、上述したように、パワーコンディショナー３５は、自立運転モードに切り替わる。自立運転モードでは、蓄電系統３の電圧が第２回路部５２の第２端子部５２１に出力される。 When a pseudo power outage occurs, as described above, the power conditioner 35 switches to the self-sustaining mode. In the self-sustaining mode, the voltage of the power storage system 3 is output to the second terminal section 521 of the second circuit section 52.

その結果、第１回路部５１の第１端子部５１１には商用電源系統２の電圧が入力されず、第２回路部５２の第２端子部５２１には蓄電系統３の電圧が入力される状態となる。これに伴い、切替制御部５０３（図２）は、切替開閉器５０が商用電力非供給状態ＳＴ２（図６）となるように切替開閉器５０を制御する（ステップＳ５）。 As a result, the voltage of the commercial power supply system 2 is not input to the first terminal section 511 of the first circuit section 51, and the voltage of the power storage system 3 is input to the second terminal section 521 of the second circuit section 52. becomes. Accordingly, the switching control unit 503 (FIG. 2) controls the switching switch 50 so that the switching switch 50 enters the commercial power non-supply state ST2 (FIG. 6) (step S5).

切替開閉器５０が商用電力非供給状態ＳＴ２に切り替えられると、電池残量測定部７５によって蓄電池３３の電池残量が監視される。ここで、蓄電池３３が閾値以上（ステップＳ６でＹＥＳ）、かつ、下げＤＲを受信している間（ステップＳ７でＹＥＳ）は、切替制御部５０３は、切替開閉器５０を商用電力非供給状態ＳＴ２に維持し続ける。 When the switching switch 50 is switched to the commercial power non-supply state ST2, the remaining battery level of the storage battery 33 is monitored by the remaining battery level measuring section 75. Here, while the storage battery 33 is equal to or higher than the threshold value (YES in step S6) and while receiving the lowered DR (YES in step S7), the switching control unit 503 switches the switching switch 50 to the commercial power non-supply state ST2. Continue to maintain.

他方、蓄電池３３が閾値未満になった場合（ステップＳ６でＮＯ）あるいは下げＤＲを受信しなくなった場合（ステップＳ７でＮＯ）、切替制御部７３（図３）は、遠隔操作用開閉器７を接続し、疑似停電を終了（疑似停電モードＯＦＦ）させる（ステップＳ８）。疑似停電が終了すると、パワーコンディショナー３５は、自立運転モードから通常運転モードに復帰する。 On the other hand, if the storage battery 33 becomes less than the threshold value (NO in step S6) or if the lowering DR is no longer received (NO in step S7), the switching control unit 73 (FIG. 3) switches the remote control switch 7. connection, and terminate the pseudo power outage (turn off the pseudo power outage mode) (step S8). When the pseudo power outage ends, the power conditioner 35 returns from the self-sustaining mode to the normal operating mode.

その結果、第１回路部５１の第１端子部５１１には商用電源系統２の電圧が入力されると共に蓄電系統３の電圧が入力される。これに伴い、切替制御部５０３（図２）は、切替開閉器５０が商用電力供給状態ＳＴ１（図１）となるように切替開閉器５０を制御する（ステップＳ９）。 As a result, the voltage of the commercial power supply system 2 and the voltage of the power storage system 3 are input to the first terminal section 511 of the first circuit section 51 . Accordingly, the switching control unit 503 (FIG. 2) controls the switching switch 50 so that the switching switch 50 enters the commercial power supply state ST1 (FIG. 1) (step S9).

また、使用電力測定部５０２は、下げＤＲの要請に応じて消費した蓄電系統３の電力に関して使用電力量を測定する（ステップＳ１０）。そして、送信部５０４は、使用電力測定部５０２で測定した使用電力量を、インターネット及びルーターを介してアグリゲーター６に送信する（ステップＳ１１）。 Further, the power usage measuring unit 502 measures the amount of power used regarding the power of the power storage system 3 consumed in response to the request for lower DR (step S10). Then, the transmitting unit 504 transmits the amount of power used measured by the power usage measuring unit 502 to the aggregator 6 via the Internet and the router (step S11).

上述した第１実施形態によれば、指令受信部７１が下げＤＲを受信していることを条件として、商用電源系統２と負荷系統４とが電気的に切り離され、かつ、蓄電系統３と負荷系統４とが電気的に接続される。すなわち、下げＤＲを受信している間、商用電源系統２からの電力が負荷系統４に一切供給されなくなる。そのため、下げＤＲの要請に対して商用電力の消費を確実に抑制することが可能である。 According to the first embodiment described above, the commercial power supply system 2 and the load system 4 are electrically disconnected, and the power storage system 3 and the load The system 4 is electrically connected. That is, while receiving the down DR, no power from the commercial power supply system 2 is supplied to the load system 4. Therefore, it is possible to reliably suppress the consumption of commercial power in response to the request for lower DR.

また、上述した第１実施形態によれば、蓄電池３３の電池残量が閾値以上の場合に、遠隔操作用開閉器７が切断され、商用電源系統２と負荷系統４とが電気的に切り離される。逆に言えば、蓄電池３３の電池残量が閾値未満の場合には、商用電源系統２と負荷系統４とが電気的に接続された状態を維持する。つまり、アグリゲーター６から下げＤＲを受信したとしても、蓄電池３３の電池残量が少なく、蓄電池３３による負荷系統４への電力供給能力が不十分な場合には、商用電源系統２と負荷系統４とが電気的に切り離されない。そのため、負荷系統４への安定的な電力供給を確保できる。 Further, according to the first embodiment described above, when the remaining battery level of the storage battery 33 is equal to or higher than the threshold value, the remote control switch 7 is disconnected, and the commercial power supply system 2 and the load system 4 are electrically disconnected. . Conversely, when the remaining battery capacity of the storage battery 33 is less than the threshold value, the commercial power supply system 2 and the load system 4 are maintained in an electrically connected state. In other words, even if a downgrade DR is received from the aggregator 6, if the remaining battery level of the storage battery 33 is low and the ability of the storage battery 33 to supply power to the load system 4 is insufficient, the commercial power system 2 and the load system 4 is not electrically disconnected. Therefore, stable power supply to the load system 4 can be ensured.

また、上述した第１実施形態によれば、下げＤＲの解除後、下げＤＲの要請に応じて消費した蓄電系統３の電力に関して使用電力量がアグリゲーター６に送信される。そのため、アグリゲーター６からの下げＤＲの要請に応じた需要家に対し、使用電力量に応じた報酬を与えることが可能になる。 Further, according to the first embodiment described above, after the lower DR is canceled, the amount of power used regarding the power of the power storage system 3 consumed in response to the lower DR request is transmitted to the aggregator 6. Therefore, it becomes possible to reward consumers who have responded to a request for lower DR from the aggregator 6 in accordance with the amount of power used.

＜２．第２実施形態＞
続いて、図８から図１４を参照しながら、第２実施形態に係る切替開閉器内蔵盤及び電力供給システムについて説明する。なお、第２実施形態は、上述した第１実施形態の変形例である。そこで、以下では、第１実施形態と相違する箇所を中心に説明を行い、第１実施形態と共通する箇所については同様の参照符号を用いることで説明を省略する。 <2. Second embodiment>
Next, a switching switch built-in panel and a power supply system according to a second embodiment will be described with reference to FIGS. 8 to 14. Note that the second embodiment is a modification of the first embodiment described above. Therefore, in the following, description will be given focusing on parts that are different from the first embodiment, and descriptions of parts common to the first embodiment will be omitted by using the same reference numerals.

図８に示すように、第２実施形態に係る電力供給システム１は、第１実施形態とは異なり、遠隔操作用開閉器７を備えていない。 As shown in FIG. 8, the power supply system 1 according to the second embodiment does not include a remote control switch 7, unlike the first embodiment.

また、第２実施形態では、切替開閉器５０及びパワーコンディショナー３５の各々が、インターネット及びルーターを介してアグリゲーター６に接続されている。 Further, in the second embodiment, each of the switching switch 50 and the power conditioner 35 is connected to the aggregator 6 via the Internet and a router.

また、図９に示すように、第２実施形態に係る切替開閉器５０は、切替制御部５０３に加え、指令受信部５０１及び電池残量測定部５０５を備えている。指令受信部５０１は、本発明に係る第二指令受信部の一例である。 Further, as shown in FIG. 9, the switching switch 50 according to the second embodiment includes a switching control section 503, a command receiving section 501, and a battery remaining amount measuring section 505. Command receiving section 501 is an example of a second command receiving section according to the present invention.

更に、図１０に示すように、第２実施形態に係るパワーコンディショナー３５は、指令受信部３５１を備えている。指令受信部３５１は、本発明に係る第一指令受信部の一例である。 Furthermore, as shown in FIG. 10, the power conditioner 35 according to the second embodiment includes a command receiving section 351. The command receiving section 351 is an example of a first command receiving section according to the present invention.

指令受信部５０１及び指令受信部３５１は、いずれも、同じタイミングでインターネット及びルーターを介して下げＤＲを電力抑制指令としてアグリゲーター６から受信する。 Both the command receiving unit 501 and the command receiving unit 351 receive the downgrade DR as a power reduction command from the aggregator 6 via the Internet and the router at the same timing.

第２実施形態では、切替制御部５０３による切替開閉器５０の制御方法が第１実施形態と大きく相違する。 In the second embodiment, the method of controlling the switching switch 50 by the switching control unit 503 is significantly different from the first embodiment.

具体的には、切替制御部５０３は、指令受信部５０１が下げＤＲを受信していない間、切替開閉器５０が商用電力供給状態ＳＴ１（図８）となるように切替開閉器５０を制御する。 Specifically, the switching control unit 503 controls the switching switch 50 so that the switching switch 50 is in the commercial power supply state ST1 (FIG. 8) while the command receiving unit 501 does not receive the down DR. .

図１２に示すように、商用電力供給状態ＳＴ１では、商用電源系統２からの電力及び蓄電系統３からの電力が太破線矢印で示す経路を通って負荷４１に供給される。 As shown in FIG. 12, in the commercial power supply state ST1, power from the commercial power supply system 2 and power from the power storage system 3 are supplied to the load 41 through the path indicated by the thick broken line arrow.

一方、切替制御部５０３は、指令受信部５０１が下げＤＲを受信している状態で、蓄電系統３の電圧が第２端子部５２１に入力されたことに応答して、切替開閉器５０が商用電力非供給状態ＳＴ２（図１３）となるように切替開閉器５０を制御する。 On the other hand, the switching control unit 503 controls the switching switch 50 to switch to the commercial The switching switch 50 is controlled to enter the power non-supply state ST2 (FIG. 13).

図１４に示すように、商用電力非供給状態ＳＴ２では、蓄電系統３からの電力が太破線矢印で示す経路を通って負荷４１に供給される。 As shown in FIG. 14, in the commercial power non-supply state ST2, power from the power storage system 3 is supplied to the load 41 through a path indicated by a thick broken line arrow.

続いて、図１１に示すフローチャートを参照しながら、第２実施形態における下げＤＲ受信時の回路切替動作について説明する。 Next, with reference to the flowchart shown in FIG. 11, a circuit switching operation when receiving a down DR in the second embodiment will be described.

第２実施形態では、図１１のフローチャートの処理のうちステップＳ４０及びステップＳ８０が第１実施形態（図４のフローチャート）と相違する。 In the second embodiment, steps S40 and S80 of the processing in the flowchart of FIG. 11 are different from the first embodiment (flowchart of FIG. 4).

具体的には、ステップＳ４０では、下げＤＲを受信中であることを示す制御信号が切替開閉器５０の切替制御部５０３に出力される。また、自立運転モードへの切替指示を示す制御信号がパワーコンディショナー３５に出力される。 Specifically, in step S40, a control signal indicating that the lowering DR is being received is output to the switching control unit 503 of the switching switch 50. Further, a control signal indicating a switch instruction to the self-sustaining mode is output to the power conditioner 35.

パワーコンディショナー３５が自立運転モードに切り替わると、蓄電系統３の電圧が第２回路部５２の第２端子部５２１に出力される。 When the power conditioner 35 switches to the self-sustaining mode, the voltage of the power storage system 3 is output to the second terminal section 521 of the second circuit section 52.

その結果、下げＤＲ（詳細には、下げＤＲを受信中であることを示す制御信号）を受信している状態で、蓄電系統３の電圧が第２回路部５２の第２端子部５２１に入力される。これに伴い、切替制御部５０３は、切替開閉器５０が商用電力非供給状態ＳＴ２（図１３）となるように切替開閉器５０を制御する（ステップＳ５）。 As a result, the voltage of the power storage system 3 is input to the second terminal section 521 of the second circuit section 52 while the lowering DR (specifically, the control signal indicating that the lowering DR is being received) is being received. be done. Accordingly, the switching control unit 503 controls the switching switch 50 so that the switching switch 50 enters the commercial power non-supply state ST2 (FIG. 13) (step S5).

ステップＳ８０では、商用電力供給状態ＳＴ１への切替を指示する制御信号が切替開閉器５０の切替制御部５０３に出力される。また、通常運転モードへの切替指示を示す制御信号がパワーコンディショナー３５に出力される。 In step S80, a control signal instructing switching to commercial power supply state ST1 is output to switching control section 503 of switching switch 50. Further, a control signal indicating a switch instruction to the normal operation mode is output to the power conditioner 35.

切替制御部５０３は、切替開閉器５０が商用電力供給状態ＳＴ１となるように切替開閉器５０を制御する（ステップＳ９）。また、パワーコンディショナー３５は、通常運転モードに復帰する。 The switching control unit 503 controls the switching switch 50 so that the switching switch 50 enters the commercial power supply state ST1 (step S9). Moreover, the power conditioner 35 returns to the normal operation mode.

上述した第２実施形態によれば、第１実施形態と同様に下げＤＲの要請に対して商用電力の消費を確実に抑制することが可能である。また、第１実施形態で説明したその他の効果も得られる。 According to the second embodiment described above, as in the first embodiment, it is possible to reliably suppress the consumption of commercial power in response to a request for lower DR. Further, other effects described in the first embodiment can also be obtained.

また、上述した第２実施形態によれば、遠隔操作用開閉器７を設けずに済むため、電力供給システム１のシステム構成を簡略化することが可能である。 Further, according to the second embodiment described above, since it is not necessary to provide the remote control switch 7, it is possible to simplify the system configuration of the power supply system 1.

＜３．変形例＞
本発明による切替開閉器内蔵盤及び電力供給システムは上述した実施の形態に限定されず、特許請求の範囲に記載した範囲で種々の変形や改良が可能である。 <3. Modified example>
The switching switch built-in panel and power supply system according to the present invention are not limited to the embodiments described above, and various modifications and improvements can be made within the scope of the claims.

例えば、上述した各実施形態では、蓄電池３３の電池残量が閾値以上の場合に商用電源系統２と負荷系統４とが電気的に切り離される場合を例示したが、これに限定されない。蓄電池３３の電池残量に関係なく、商用電源系統２と負荷系統４とが電気的に切り離されるように構成してもよい。 For example, in each of the embodiments described above, the commercial power supply system 2 and the load system 4 are electrically disconnected when the remaining battery level of the storage battery 33 is equal to or higher than the threshold value, but the present invention is not limited to this. The commercial power supply system 2 and the load system 4 may be configured to be electrically separated regardless of the remaining battery level of the storage battery 33.

その場合、蓄電池３３の電池残量がゼロになった時点で、切替開閉器５０が商用電力供給状態ＳＴ１となるように切替開閉器５０を制御し、商用電源系統２と負荷系統４とが再度電気的に接続されるようにすればよい。 In that case, when the remaining battery level of the storage battery 33 becomes zero, the switching switch 50 is controlled so that the switching switch 50 enters the commercial power supply state ST1, and the commercial power system 2 and the load system 4 are connected again. What is necessary is just to make it electrically connected.

また、上述した各実施形態では、図４及び図１１のステップＳ１０，１１において、下げＤＲの解除後、下げＤＲの要請に応じて消費した蓄電系統３の電力に関して使用電力量がアグリゲーター６に送信される場合を例示したが、これに限定されない。需要家に報酬を与えない場合には、図４及び図１１のステップＳ１０，１１を省略してもよい。 Further, in each of the embodiments described above, in steps S10 and 11 of FIGS. 4 and 11, after canceling the lower DR, the amount of power used regarding the power of the power storage system 3 consumed in response to the request for lower DR is transmitted to the aggregator 6. Although the case is illustrated as an example, the present invention is not limited to this. If the consumer is not rewarded, steps S10 and 11 in FIGS. 4 and 11 may be omitted.

１電力供給システム
２商用電源系統
３蓄電系統
４負荷系統
５電源自動切替盤
６アグリゲーター
７遠隔操作用開閉器
２１商用電源
３１太陽光発電装置
３３蓄電池
３５パワーコンディショナー
４１負荷
５０切替開閉器
５１第１回路部
５２第２回路部
５３中継回路部
５４負荷回路部
７１指令受信部
７３切替制御部
７５電池残量測定部
３５１指令受信部
５００切替開閉器
５０１指令受信部
５０２使用電力測定部
５０３切替制御部
５０４送信部
５０５電池残量測定部
５１１第１端子部
５２１第２端子部
ＳＴ１商用電力供給状態
ＳＴ２商用電力非供給状態

1 Power supply system 2 Commercial power supply system 3 Energy storage system 4 Load system 5 Automatic power switching panel 6 Aggregator 7 Remote control switch 21 Commercial power supply 31 Solar power generation device 33 Storage battery 35 Power conditioner 41 Load 50 Switching switch 51 First circuit Section 52 Second circuit section 53 Relay circuit section 54 Load circuit section 71 Command receiving section 73 Switching control section 75 Remaining battery level measuring section 351 Command receiving section 500 Switching switch 501 Command receiving section 502 Power consumption measuring section 503 Switching control section 504 Transmitting section 505 Remaining battery level measuring section 511 First terminal section 521 Second terminal section ST1 Commercial power supply state ST2 Commercial power non-supply state

Claims

A commercial power system including a commercial power supply,
A power storage system including a power generation device and a storage battery;
A load system including a load,
A switching switch electrically connected to each of the commercial power supply system, the power storage system, and the load system, the switch switching the connection state between the commercial power supply system and the load system, and switching between the power storage system and the load system. An automatic power switching panel including a switching switch that switches the connection status with the
An aggregator that activates a lower DR (Demand Response),
a command receiving unit that receives the lowered DR from the aggregator via a network;
Equipped with
The switching switch electrically disconnects the commercial power supply system and the load system, and disconnects the power storage system and the load system, on the condition that the command receiving unit receives the down DR. A power supply system characterized by an electrical connection.

a first circuit section including a first terminal electrically connected to the commercial power supply system and the switching switch;
a second circuit section including a second terminal electrically connected to the power storage system and the switching switch;
a power conditioner capable of switching between a normal operation mode in which a voltage is output to the first terminal and a self-sustaining operation mode in which a voltage is output to the second terminal;
further comprising;
A remote control switch including the command receiving section is provided between the commercial power supply system and the first circuit,
The remote control switch electrically disconnects the commercial power supply system and the switching switch while the command receiving unit receives the down DR, and cuts off the power supply from the commercial power supply system. ,
The power conditioner switches to the self-sustaining mode while the power supply from the commercial power system is cut off,
The switching switch electrically disconnects the commercial power supply system and the load system and electrically disconnects the power storage system and the load system in response to voltage being input to the second terminal. The power supply system according to claim 1, wherein the power supply system is connected to a power supply system.

a first circuit section including a first terminal electrically connected to the commercial power supply system and the switching switch;
a second circuit section including a second terminal electrically connected to the power storage system and the switching switch;
a power conditioner capable of switching between a normal operation mode in which a voltage is output to the first terminal and a self-sustaining operation mode in which a voltage is output to the second terminal;
further comprising;
The command receiving unit includes a first command receiving unit provided in the power conditioner and a second command receiving unit provided in the switching switch,
The power conditioner switches to the self-sustaining mode while the first command receiving unit receives the lowering DR,
The switching switch electrically disconnects the commercial power supply system and the load system when a voltage is input to the second terminal while the second command receiving unit is receiving the lowering DR, The power supply system according to claim 1, wherein the power storage system and the load system are electrically connected.

further comprising a battery remaining amount measuring unit that measures the remaining battery amount of the storage battery,
The switching switch electrically disconnects the commercial power supply system and the load system, and electrically disconnects the power storage system and the load system, with the additional condition that the remaining battery level is equal to or higher than a threshold value. The power supply system according to any one of claims 1 to 3, characterized in that the power supply system is connected to the power supply system.

The switching switch is
a power usage measuring unit that measures the amount of power used by the power storage system associated with the lowering DR;
a transmitter that transmits the amount of power used to the aggregator;
The power supply system according to any one of claims 1 to 3, characterized by comprising:

A switching switch electrically connected to each of a commercial power supply system including a commercial power supply, a power storage system including a power generation device and a storage battery, and a load system including a load, the connection state between the commercial power supply system and the load system. a switching switch that switches the connection state between the power storage system and the load system;
a command receiving unit that receives a lower DR (Demand Response) activated from an aggregator;
Equipped with
The switching switch electrically disconnects the commercial power supply system and the load system, and disconnects the power storage system and the load system, on the condition that the command receiving unit receives the down DR. A panel with a built-in switching switch that is characterized by electrical connection.