JP2020167794A - Power supply facility - Google Patents

Power supply facility Download PDF

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JP2020167794A
JP2020167794A JP2019064706A JP2019064706A JP2020167794A JP 2020167794 A JP2020167794 A JP 2020167794A JP 2019064706 A JP2019064706 A JP 2019064706A JP 2019064706 A JP2019064706 A JP 2019064706A JP 2020167794 A JP2020167794 A JP 2020167794A
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power
information
received
communication
supply facility
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JP7378946B2 (en
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卓也 伴野
Takuya Tomono
卓也 伴野
崇之 渡邉
Takayuki Watanabe
崇之 渡邉
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Tokyo Gas Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation

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  • Supply And Distribution Of Alternating Current (AREA)

Abstract

To properly output power while avoiding cost increase.SOLUTION: A power supply facility 116 includes a power generation unit 116a for generating power by converting other energy into electric energy, a communication unit 116c for establishing communication with the outside, an information acquisition unit 140 for acquiring received power information capable of identifying received power at a power reception point from a power system through the communication unit, and an output control unit 144 for controlling output power of the power generation unit so that the received power based on the received power information becomes a predetermined value. In this way, it is possible to appropriately output power while avoiding an increase in cost by not providing a through hole in a wall of a house.SELECTED DRAWING: Figure 1

Description

本発明は、電力を供給する電力供給設備に関する。 The present invention relates to a power supply facility that supplies power.

需要者は、電力会社からの電気（商用電力）の供給を受けて構内の負荷設備（一般用電気工作物）で電気を使用する。また、需要者は、太陽光発電設備等、発電設備を構内に設け、負荷設備を動作させるとともに（例えば、特許文献１）、電力会社に余った電力を売電することも可能である。 Consumers receive electricity (commercial electricity) from electric power companies and use electricity in load facilities (general electric facilities) on the premises. In addition, the consumer can install a power generation facility such as a solar power generation facility on the premises to operate the load facility (for example, Patent Document 1) and sell the surplus electric power to the electric power company.

特開２０１３−２４７７３７号公報Japanese Unexamined Patent Publication No. 2013-247737

単相３線式１００／２００Ｖにおける単相３線式２００Ｖ（Ｒ相とＴ相）に、太陽光発電設備や燃料電池といった電力供給設備を接続することがある。このような電力供給設備では、電圧線であるＲ相とＴ相とにそれぞれ電流計（変流器）を取り付け、各電流計で検出される電流値と、Ｒ−Ｎ相およびＴ−Ｎ相の線間電圧値と、電流、電圧の位相に基づく力率値とから受電電力を算出している。 A power supply facility such as a photovoltaic power generation facility or a fuel cell may be connected to a single-phase three-wire system 200V (R phase and T phase) in a single-phase three-wire system 100 / 200V. In such a power supply facility, an ammeter (transmuter) is attached to each of the voltage lines R phase and T phase, and the current value detected by each ammeter and the RN phase and TN phase are used. The received power is calculated from the line voltage value of the above and the power factor value based on the current and voltage phases.

また、今後は、省エネルギー機器が普及し、構内の電力需要が減少すると、必ずしも単相３線式２００Ｖへの接続を要さず、例えば、単相３線式１００／２００Ｖの一方の電圧線（Ｒ相またはＴ相、以下、連系相という場合がある）と中性線（Ｎ相）とに（以下、連系相とＮ相とを単相３線式１００Ｖと呼ぶ場合がある）、小出力の電力供給設備を設置することが考えられる。 In the future, when energy-saving equipment becomes widespread and the power demand in the premises decreases, it is not always necessary to connect to a single-phase three-wire system 200V. For example, one voltage line of a single-phase three-wire system 100 / 200V ( R phase or T phase, hereinafter may be referred to as interconnection phase) and neutral wire (N phase) (hereinafter, the interconnection phase and N phase may be referred to as single-phase three-wire 100V). It is conceivable to install a small output power supply facility.

このような小出力の電力供給設備を屋外に設置する場合、電力供給設備において受電電力を導出するために、屋内の電流計等から電流値等の情報を得るために、家屋の壁に貫通孔を施す必要が生じ、設置工事にコストを要してしまう。 When such a small output power supply facility is installed outdoors, a through hole is formed in the wall of the house in order to derive the received power in the power supply facility and to obtain information such as the current value from an indoor ammeter or the like. It becomes necessary to perform the installation work, which requires a high cost.

本発明は、このような課題に鑑み、コストの増大を回避しつつ、電力を適切に出力することが可能な電力供給設備を提供することを目的としている。 In view of such a problem, an object of the present invention is to provide a power supply facility capable of appropriately outputting electric power while avoiding an increase in cost.

上記課題を解決するために、本発明の電力供給設備は、他のエネルギーを電気エネルギーに変換して電力を生成する発電部と、外部と通信を確立する通信部と、通信部を通じて、電力系統からの受電点における受電電力を特定可能な受電電力情報を取得する情報取得部と、受電電力情報に基づく受電電力が所定の値となるように、発電部の出力電力を制御する出力制御部と、を備える。 In order to solve the above problems, the power supply facility of the present invention has a power generation unit that converts other energy into electrical energy to generate electric power, a communication unit that establishes communication with the outside, and a power system through the communication unit. An information acquisition unit that acquires power received information that can specify the received power at the power receiving point from, and an output control unit that controls the output power of the power generation unit so that the received power based on the received power information becomes a predetermined value. , Equipped with.

通信部は、受電点に設置された電力メータと通信を確立し、情報取得部は、電力メータで測定された電力情報に含まれる受電電力情報を取得するとしてもよい。 The communication unit may establish communication with the power meter installed at the power receiving point, and the information acquisition unit may acquire the received power information included in the power information measured by the power meter.

通信部は、電力メータの情報を収集する管理サーバと通信を確立し、情報取得部は、管理サーバから、受電点に設置された電力メータで測定された電力情報に含まれる受電電力情報を取得するとしてもよい。 The communication unit establishes communication with the management server that collects the information of the power meter, and the information acquisition unit acquires the received power information included in the power information measured by the power meter installed at the power receiving point from the management server. You may do so.

通信部は、需要者の構内における電力を管理するエネルギー管理システムと通信を確立し、情報取得部は、エネルギー管理システムから、受電点における受電電力情報を取得するとしてもよい。 The communication unit may establish communication with an energy management system that manages the electric power in the premises of the consumer, and the information acquisition unit may acquire the electric power received information at the receiving point from the energy management system.

通信部は、電力線を通信回線とするＰＬＣを通じて通信を確立してもよい。 The communication unit may establish communication through a PLC whose communication line is a power line.

本発明によれば、コストの増大を回避しつつ、電力を適切に出力することが可能となる。 According to the present invention, it is possible to appropriately output electric power while avoiding an increase in cost.

電力システムの接続態様を示した説明図である。It is explanatory drawing which showed the connection mode of the electric power system. 電力供給設備による受電電力一定制御の処理を説明するためのフローチャートである。It is a flowchart for demonstrating the process of constant power received control by a power supply facility. 電力システムの接続態様を示した説明図である。It is explanatory drawing which showed the connection mode of the electric power system. 電力システムの基本的な接続態様を示した説明図である。It is explanatory drawing which showed the basic connection mode of the electric power system.

以下に添付図面を参照しながら、本発明の好適な実施形態について詳細に説明する。かかる実施形態に示す寸法、材料、その他具体的な数値等は、発明の理解を容易とするための例示にすぎず、特に断る場合を除き、本発明を限定するものではない。なお、本明細書および図面において、実質的に同一の機能、構成を有する要素については、同一の符号を付することにより重複説明を省略し、また本発明に直接関係のない要素は図示を省略する。 A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. The dimensions, materials, other specific numerical values, and the like shown in such an embodiment are merely examples for facilitating the understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are designated by the same reference numerals to omit duplicate description, and elements not directly related to the present invention are not shown. To do.

<第１の実施形態>
図１は、電力システム１００の接続態様を示した説明図である。電力システム１００は、引き込み線１０を通じて、電力系統１２から電気（商用電力）の供給を受ける。なお、本実施形態においては、電力系統１２から電力が供給される供給路において、各設備を基準に電力系統１２側を一次側、その反対側を二次側として定義する。 <First embodiment>
FIG. 1 is an explanatory diagram showing a connection mode of the power system 100. The electric power system 100 receives electricity (commercial electric power) from the electric power system 12 through the service line 10. In the present embodiment, in the supply path to which power is supplied from the power system 12, the power system 12 side is defined as the primary side and the opposite side is defined as the secondary side based on each facility.

電力システム１００は、低圧受電の需要者単位で構成され、その範囲としては、一般用電気工作物であれば、家屋等に限らず、病院、工場、ホテル、レジャー施設、商業施設、マンションといった建物単位や建物内の一部分であってもよい。 The electric power system 100 is composed of each consumer of low-voltage power reception, and its scope is not limited to houses and the like as long as it is a general electric facility, but buildings such as hospitals, factories, hotels, leisure facilities, commercial facilities, and condominiums. It may be a unit or a part of a building.

また、電力システム１００は、電力メータ１１２と、分電盤１１４と、電力供給設備１１６とを含んで構成される。 Further, the power system 100 includes a power meter 112, a distribution board 114, and a power supply facility 116.

電力メータ（電力量計）１１２は、電力系統１２に引き込み線１０を介して接続され、引き込み線１０と電力システム１００との間に流れる（消費および売電の）電流の電流値および電圧値を計測する。また、電力メータ１１２は、電圧線の電流値、電圧線と中性線との線間電圧値、ならびに、電圧の位相に基づく力率値とを乗じて受電電力を導出する。さらに、電力メータ１１２は、受電電力を積算し、例えば、１ヶ月分の電力使用量（ｋＷｈ）を導出する。なお、電力メータ１１２は、分電盤１１４の一次側に契約容量を示すサービスブレーカ１１２ａを含んで構成される。 The watt hour meter 112 is connected to the power system 12 via a service line 10 and measures the current value and voltage value of the current (consuming and selling power) flowing between the service line 10 and the power system 100. measure. Further, the power meter 112 derives the received power by multiplying the current value of the voltage line, the line voltage value between the voltage line and the neutral line, and the power factor value based on the phase of the voltage. Further, the watt hour meter 112 integrates the received power and derives, for example, one month's power consumption (kWh). The power meter 112 includes a service breaker 112a indicating a contracted capacity on the primary side of the distribution board 114.

また、本実施形態において、電力メータ１１２は、電力使用量をデジタルで計測するスマートメータであり、外部と無線または有線の通信を確立する通信部（図示せず）を有する。電力メータ１１２の通信部は、受電電力や電力使用量等の電力情報を外部に送信することができる。 Further, in the present embodiment, the power meter 112 is a smart meter that digitally measures the amount of power used, and has a communication unit (not shown) that establishes wireless or wired communication with the outside. The communication unit of the watt-hour meter 112 can transmit power information such as received power and power usage to the outside.

分電盤１１４は、電力メータ１１２の二次側に接続され、漏電ブレーカ１１４ａ、および、配線用（安全）ブレーカ１１４ｂを有する。漏電ブレーカ１１４ａは、漏電の検出に応じて電気の供給を遮断する。ここで、漏電ブレーカ１１４ａは、漏電遮断機能付き過電流遮断器、および、漏電遮断機能のみを有する漏電遮断器のいずれの概念も含んでいる。配線用ブレーカ１１４ｂは、内部配線（主幹バー）を介して漏電ブレーカ１１４ａと接続され、構内配線１２０に流れる電流が定格遮断電流を超過すると電気の供給を遮断する。 The distribution board 114 is connected to the secondary side of the electricity meter 112 and has an earth leakage breaker 114a and a wiring (safety) breaker 114b. The earth leakage breaker 114a cuts off the supply of electricity in response to the detection of the earth leakage. Here, the earth leakage breaker 114a includes both the concept of an overcurrent circuit breaker with an earth leakage breaker function and an earth leakage breaker having only an earth leakage breaker function. The wiring breaker 114b is connected to the earth leakage breaker 114a via the internal wiring (main bar), and cuts off the supply of electricity when the current flowing through the premises wiring 120 exceeds the rated breaking current.

需要者は、構内配線１２０それぞれに１または複数の負荷設備１４を接続し、上述した、漏電ブレーカ１１４ａ、配線用ブレーカ１１４ｂ、および、構内配線１２０を通じて電力の供給を受ける。 The consumer connects one or more load facilities 14 to each of the premises wiring 120, and receives power through the above-mentioned earth leakage breaker 114a, the wiring breaker 114b, and the premises wiring 120.

電力供給設備１１６は、分電盤１１４における複数の構内配線１２０のいずれか（単相３線式１００Ｖ）に接続され、他のエネルギーを電気エネルギーに変換して電力を生成する。電力供給設備１１６は、出力電圧等を調整することで、生成した電力を電力系統１２より優先して構内の負荷設備１４に供給することができる。 The power supply facility 116 is connected to one of a plurality of premises wirings 120 (single-phase three-wire 100V) in the distribution board 114, and converts other energy into electric energy to generate electric power. By adjusting the output voltage and the like, the power supply facility 116 can supply the generated power to the load facility 14 on the premises with priority over the power system 12.

かかる電力供給設備１１６としては、例えば、太陽光発電機、風力発電機、水力発電機、地熱発電機、太陽熱発電機、大気中熱発電機等の再生可能エネルギー発電設備や、燃料電池、内燃力発電、蓄電池等を用いることができる。ここでは、電力供給設備１１６を屋外に設置する例を挙げて説明する。したがって、電力供給設備１１６は屋外（屋外防水）コンセント１２２を通じて構内配線１２０に接続することができる。 Examples of the power supply facility 116 include renewable energy power generation facilities such as solar power generators, wind power generators, hydroelectric power generators, geothermal power generators, solar heat generators, and atmospheric heat generators, fuel cells, and internal combustion power generation. , Storage batteries and the like can be used. Here, an example in which the power supply facility 116 is installed outdoors will be described. Therefore, the power supply facility 116 can be connected to the premises wiring 120 through the outdoor (outdoor waterproof) outlet 122.

電力供給設備１１６は、発電部１１６ａと、設備電流計１１６ｂと、通信部１１６ｃと、制御部１１６ｄとを有している。発電部１１６ａは、例えば、燃料電池等で構成され、他のエネルギーを電気エネルギーに変換して電力を生成する。設備電流計１１６ｂは、例えば、変流器（ＣＴ）と整流器とで構成され、発電部１１６ａから出力される電流（以下、設備電流という）を測定する。通信部１１６ｃは、無線で外部と通信を確立し、様々な情報を受信することができる。 The power supply facility 116 includes a power generation unit 116a, an equipment ammeter 116b, a communication unit 116c, and a control unit 116d. The power generation unit 116a is composed of, for example, a fuel cell or the like, and converts other energy into electric energy to generate electric power. The equipment ammeter 116b is composed of, for example, a current transformer (CT) and a rectifier, and measures a current (hereinafter, referred to as equipment current) output from the power generation unit 116a. The communication unit 116c can wirelessly establish communication with the outside and receive various information.

制御部１１６ｄは、中央処理装置（ＣＰＵ）、プログラム等が格納されたＲＯＭ、ワークエリアとしてのＲＡＭ等を含む半導体集積回路で構成され、設備電流が所望の値になるように、発電部１１６ａの出力（電流）を制御する。 The control unit 116d is composed of a semiconductor integrated circuit including a central processing unit (CPU), a ROM in which a program or the like is stored, a RAM as a work area, etc. Control the output (current).

このような電力供給設備１１６を構内配線１２０に接続することで、電力系統だけでは不足する負荷設備１４への電力を電力供給設備１１６で補うことができる。なお、ここでは、制御部１１６ｄが電力供給設備１１６と一体的に形成される例を挙げて説明しているが、別体として設けられてもよい。 By connecting such a power supply facility 116 to the premises wiring 120, the power supply facility 116 can supplement the power to the load facility 14 that is insufficient only by the power system. Although the control unit 116d is described here with an example of being integrally formed with the power supply facility 116, it may be provided as a separate body.

このような電力供給設備１１６では、電力供給設備１１６から離隔した受電点における受電電力が参照される。電力供給設備１１６は、参照した受電電力に基づいて、受電電力を所定の値に維持する受電電力一定制御、ＲＰＲ（逆電力継電器）機能、ＵＰＲ（不足電力継電器）機能を実現することが可能となる。 In such a power supply facility 116, the received power at a power receiving point separated from the power supply facility 116 is referred to. The power supply facility 116 is capable of realizing constant power reception control, RPR (reverse power relay) function, and UPR (insufficient power relay) function for maintaining the received power at a predetermined value based on the referenced power received. Become.

しかし、電力供給設備１１６を屋外に設置する場合、電力供給設備１１６が受電電力を参照するために、分電盤１１４等において屋内で測定された電流値等の情報を屋外に伝達しなければならず、家屋の壁に貫通孔を施す必要が生じ、設置工事にコストを要してしまう。そこで、本実施形態では、家屋の壁に貫通孔を施さないことでコストの増大を回避しつつ、電力を適切に出力する。 However, when the power supply facility 116 is installed outdoors, the power supply facility 116 must transmit information such as the current value measured indoors on the distribution board 114 or the like to the outdoors in order to refer to the received power. Instead, it is necessary to make a through hole in the wall of the house, which requires cost for installation work. Therefore, in the present embodiment, electric power is appropriately output while avoiding an increase in cost by not providing a through hole in the wall of the house.

上述したように、電力メータ１１２は、計測した受電電力等の電力情報を、無線を通じて外部に送信することができる。ここでは、電力メータ１１２の電力情報を、無線を通じて電力供給設備１１６に送信する。電力供給設備１１６では、その電力情報に基づいて受電電力を参照する。 As described above, the power meter 112 can wirelessly transmit power information such as the measured power received to the outside. Here, the power information of the power meter 112 is transmitted wirelessly to the power supply facility 116. The power supply facility 116 refers to the received power based on the power information.

このような無線による受電電力の参照を実現するため、電力供給設備１１６の制御部１１６ｄは、プログラムを動作させることで、情報取得部１４０、電力導出部１４２、出力制御部１４４としても機能する。 In order to realize such wireless reference of the received power, the control unit 116d of the power supply facility 116 also functions as an information acquisition unit 140, a power extraction unit 142, and an output control unit 144 by operating a program.

図２は、電力供給設備１１６による受電電力一定制御の処理を説明するためのフローチャートである。ここでは、受電電力を用いた制御として受電電力一定制御を挙げて説明するが、本実施形態が、ＲＰＲ（逆電力継電器）機能やＵＰＲ機能（不足電力継電器）にも対応するのは言うまでもない。 FIG. 2 is a flowchart for explaining the process of constant power reception control by the power supply facility 116. Here, the constant power received control will be described as the control using the received power, but it goes without saying that this embodiment also corresponds to the RPR (reverse power relay) function and the UPR function (insufficient power relay).

まず、情報取得部１４０は、通信部１１６ｃによる無線通信を通じ、電力メータ１１２から、受電点Ａにおける電力情報のうち、受電電力を特定可能な受電電力情報（例えば、受電電力自体や、電圧線の電流値、電圧線と中性線との線間電圧値、ならびに、電圧の位相に基づく力率値）を取得する（Ｓ２００）。 First, the information acquisition unit 140 receives power information (for example, the received power itself or a voltage line) that can specify the received power among the power information at the power receiving point A from the power meter 112 through wireless communication by the communication unit 116c. The current value, the line voltage value between the voltage line and the neutral line, and the power factor value based on the phase of the voltage) are acquired (S200).

電力導出部１４２は、情報取得部１４０が取得した受電電力情報に基づいて（例えば、電圧線の電流値、電圧線と中性線との線間電圧値、ならびに、電圧の位相に基づく力率値とを乗じて）、受電点Ａにおける受電電力を導出する（Ｓ２０２）。なお、情報取得部１４０が受電電力情報として受電電力自体を取得した場合、電力導出部１４２は、なんら処理を行わない。こうして、単相３線式１００／２００Ｖの受電電力を適切に参照することができる。 The power deriving unit 142 is based on the received power information acquired by the information acquisition unit 140 (for example, the current value of the voltage line, the line voltage value between the voltage line and the neutral line, and the power factor based on the phase of the voltage. Multiply by the value) to derive the received power at the receiving point A (S202). When the information acquisition unit 140 acquires the received power itself as the received power information, the power out-licensing unit 142 does not perform any processing. In this way, the received power of the single-phase three-wire system 100 / 200V can be appropriately referred to.

出力制御部１４４は、電力導出部１４２が導出した受電電力が所定の値となるように、発電部１１６ａの出力電力を制御する（Ｓ２０４）。例えば、出力制御部１４４は、受電電力が増加すると、発電部１１６ａの出力電力を減少させ、受電電力が減少すると、発電部１１６ａの出力電力を増加させる。このようなＳ２００〜Ｓ２０４の処理を繰り返すことで、受電電力一定制御を実現できる。 The output control unit 144 controls the output power of the power generation unit 116a so that the received power derived by the power lead-out unit 142 has a predetermined value (S204). For example, the output control unit 144 decreases the output power of the power generation unit 116a when the received power increases, and increases the output power of the power generation unit 116a when the received power decreases. By repeating the processes of S200 to S204, constant power reception control can be realized.

かかる電力システム１００では、分電盤１１４等において屋内で測定された電流値等の情報を屋外に伝達する線を設ける必要がないので、家屋の壁に貫通孔を施さなくて済み、コストの増大を回避しつつ、電力を適切に出力することが可能となる。 In such a power system 100, since it is not necessary to provide a line for transmitting information such as a current value measured indoors on the distribution board 114 or the like to the outside, it is not necessary to provide a through hole in the wall of the house, which increases the cost. It is possible to output electric power appropriately while avoiding the above.

<第２の実施形態>
第１の実施形態では、電力供給設備１１６が、電力メータ１１２の機能を利用して受電電力を参照する例を挙げて説明した。しかし、電力供給設備１１６と電力メータ１１２との位置関係（電波環境）や、セキュリティ上の問題から電力供給設備１１６と電力メータ１１２とが直接通信を行うことができない場合がある。第２の実施形態では、電力システム１５０を挙げ、このような場合であっても、電力メータ１１２の受電電力情報を利用する態様を説明する。 <Second embodiment>
In the first embodiment, an example in which the power supply facility 116 refers to the received power by using the function of the power meter 112 has been described. However, there are cases where the power supply equipment 116 and the power meter 112 cannot directly communicate with each other due to the positional relationship (radio environment) between the power supply equipment 116 and the power meter 112 and security problems. In the second embodiment, the power system 150 is mentioned, and even in such a case, an embodiment in which the received power information of the power meter 112 is used will be described.

図３は、電力システム１５０の接続態様を示した説明図である。電力メータ１１２は、計測した受電電力等の電力情報を、基地局１５２およびネットワーク網１５４を通じて管理サーバ１５６に送信する。そして、管理サーバ１５６では、複数の電力メータ１１２の電力情報を収集し、その電力情報に基づいて需要者の課金情報を生成したり、電力制御を実行したりする。 FIG. 3 is an explanatory diagram showing a connection mode of the power system 150. The power meter 112 transmits the measured power information such as the received power to the management server 156 through the base station 152 and the network network 154. Then, the management server 156 collects the power information of the plurality of power meters 112, generates the billing information of the consumer based on the power information, and executes the power control.

電力供給設備１１６の通信部１１６ｃは、管理サーバ１５６と無線通信を確立する。そして、情報取得部１４０は、管理サーバ１５６から、受電点Ａに設置された電力メータ１１２で測定された受電電力情報を取得する。 The communication unit 116c of the power supply facility 116 establishes wireless communication with the management server 156. Then, the information acquisition unit 140 acquires the received power information measured by the power meter 112 installed at the power receiving point A from the management server 156.

また、電力導出部１４２は、受電電力情報が受電電力自体でなければ、情報取得部１４０が取得した受電電力情報に基づいて受電点Ａにおける受電電力を導出する。出力制御部１４４は、情報取得部１４０が取得した受電電力または電力導出部１４２が導出した受電電力が所定の値となるように、発電部１１６ａの出力電力を制御する。こうして、第１の実施形態同様、受電電力一定制御を実現できる。 Further, if the received power information is not the received power itself, the power derivation unit 142 derives the received power at the power receiving point A based on the received power information acquired by the information acquisition unit 140. The output control unit 144 controls the output power of the power generation unit 116a so that the received power acquired by the information acquisition unit 140 or the received power derived by the power extraction unit 142 becomes a predetermined value. In this way, as in the first embodiment, constant power reception control can be realized.

<第３の実施形態>
第１の実施形態および第２の実施形態では、電力供給設備１１６が、電力メータ１１２の受電電力情報を利用して受電電力を参照する例を挙げて説明した。しかし、電力メータ１１２が未だスマートメータとなっていない等、電力供給設備１１６が、電力メータ１１２や管理サーバ１５６と通信を確立できない場合がある。第３の実施形態では、電力システム１６０を挙げ、このような場合であっても、受電電力を参照する態様を説明する。 <Third embodiment>
In the first embodiment and the second embodiment, an example in which the power supply facility 116 refers to the received power by using the received power information of the power meter 112 has been described. However, there are cases where the power supply facility 116 cannot establish communication with the power meter 112 or the management server 156, such as when the power meter 112 has not yet become a smart meter. In the third embodiment, the power system 160 is mentioned, and even in such a case, an aspect of referring to the received power will be described.

図４は、電力システム１６０の基本的な接続態様を示した説明図である。ＨＥＭＳ（Home Energy Management System）１６２は、需要者の構内における電力の消費と、発電設備や蓄電設備をリアルタイムで統合的に管理し、快適さを保ちつつエネルギー消費の効率化を図る設備（エネルギー管理システム）である。したがって、ＨＥＭＳ１６２は、分電盤１１４内に設けられた電力計測器１６４から、電圧線の電流値、電圧線と中性線との線間電圧値、ならびに、電圧の位相に基づく力率値を検出し、受電電力を導出することもできる。 FIG. 4 is an explanatory diagram showing a basic connection mode of the power system 160. The HEMS (Home Energy Management System) 162 is a facility (energy management) that comprehensively manages power consumption on the premises of consumers and power generation equipment and power storage equipment in real time to improve the efficiency of energy consumption while maintaining comfort. System). Therefore, the HEMS 162 obtains the current value of the voltage line, the line voltage value between the voltage line and the neutral line, and the power factor value based on the phase of the voltage from the power measuring instrument 164 provided in the distribution board 114. It can also be detected and the received power can be derived.

また、ＨＥＭＳ１６２は、外部と無線または有線の通信を確立する通信部（図示せず）を有する。ＨＥＭＳ１６２の通信部は、受電電力等の電力情報を外部に送信することができる。 Further, the HEMS 162 has a communication unit (not shown) that establishes wireless or wired communication with the outside. The communication unit of HEMS 162 can transmit power information such as received power to the outside.

電力供給設備１１６の通信部１１６ｃは、ＨＥＭＳ１６２と無線通信を確立する。そして、情報取得部１４０は、ＨＥＭＳ１６２から、受電点Ａにおける受電電力情報を取得する。 The communication unit 116c of the power supply facility 116 establishes wireless communication with the HEMS 162. Then, the information acquisition unit 140 acquires the received power information at the power receiving point A from the HEMS 162.

また、電力導出部１４２は、受電電力情報が受電電力自体でなければ、情報取得部１４０が取得した電圧線の電流値、電圧線と中性線との線間電圧値、ならびに、電圧の位相に基づく力率値とを乗じて、受電点Ａにおける受電電力を導出する。出力制御部１４４は、情報取得部１４０が取得した受電電力または電力導出部１４２が導出した受電電力が所定の値となるように、発電部１１６ａの出力電力を制御する。こうして、第１の実施形態および第２の実施形態同様、受電電力一定制御を実現できる。 Further, if the received power information is not the received power itself, the power deriving unit 142 has the current value of the voltage line acquired by the information acquisition unit 140, the line voltage value between the voltage line and the neutral line, and the phase of the voltage. The received power at the receiving point A is derived by multiplying the power factor value based on. The output control unit 144 controls the output power of the power generation unit 116a so that the received power acquired by the information acquisition unit 140 or the received power derived by the power extraction unit 142 becomes a predetermined value. In this way, as in the first embodiment and the second embodiment, constant power reception control can be realized.

なお、ここでは、通信を確立する対象としてＨＥＭＳ１６２を挙げて説明したが、その対象は、エネルギー管理システム（Energy Management System）であれば足り、管理態様に応じて、ＢＥＭＳ（Building Energy Management System）、ＦＥＭＳ（Factory Energy Management System）、ＣＥＭＳ（Cluster/Community Energy Management System）等、様々な設備に適用することができる。 Here, HEMS 162 has been described as a target for establishing communication, but the target may be an energy management system (Energy Management System), and depending on the management mode, BEMS (Building Energy Management System), It can be applied to various facilities such as FEMS (Factory Energy Management System) and CEMS (Cluster / Community Energy Management System).

<第４の実施形態>
第１の実施形態〜第３の実施形態では、電力供給設備１１６と、電力メータ１１２やＨＥＭＳ１６２とが無線通信を確立する例を挙げて説明した。しかし、その位置関係や電波環境によっては無線通信を確立することができない場合がある。第４の実施形態では、電力供給設備１１６が、電力線を通信回線とするＰＬＣ（Power Line Communication：電力線搬送通信）を確立して、受電電力を参照する。この場合、電力システム１００、１５０、１６０のいずれにおいても、通信部１１６ｃは、無線通信の代わりに、構内配線１２０を通じた有線通信を行う。 <Fourth Embodiment>
In the first to third embodiments, an example in which the power supply facility 116 and the power meter 112 or the HEMS 162 establish wireless communication has been described. However, wireless communication may not be established depending on the positional relationship and the radio wave environment. In the fourth embodiment, the power supply facility 116 establishes a PLC (Power Line Communication) using the power line as a communication line and refers to the received power. In this case, in any of the power systems 100, 150, and 160, the communication unit 116c performs wired communication through the premises wiring 120 instead of wireless communication.

電力供給設備１１６は、屋外コンセント１２２を通じて電力を供給するとともに、同屋外コンセント１２２を通じて受電電力情報を取得することが可能となる。こうして、電力供給設備１１６は、家屋の壁に貫通孔を施すことなく、構内配線１２０のみを通じて受電電力を容易に導出することが可能となる。 The power supply facility 116 can supply power through the outdoor outlet 122 and acquire the received power information through the outdoor outlet 122. In this way, the power supply facility 116 can easily derive the received power only through the premises wiring 120 without providing a through hole in the wall of the house.

以上、添付図面を参照しながら本発明の好適な実施形態について説明したが、本発明はかかる実施形態に限定されないことは言うまでもない。当業者であれば、特許請求の範囲に記載された範疇内において、各種の変更例または修正例に想到し得ることは明らかであり、それらについても当然に本発明の技術的範囲に属するものと了解される。 Although the preferred embodiment of the present invention has been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such an embodiment. It is clear that a person skilled in the art can come up with various modifications or modifications within the scope of the claims, which naturally belong to the technical scope of the present invention. Understood.

例えば、上述した実施形態においては、電力供給設備１１６を、単相３線式１００／２００Ｖのうち単相３線式１００Ｖに接続する例を挙げて説明した。しかし、単相３線式１００Ｖに限らず、単相３線式２００Ｖに接続したとしても、電力供給設備１１６が外部と通信を確立し、確立した通信を通じて受電電力を参照できれば、コストの増大を回避しつつ、電力を適切に出力する効果を生じ得る。 For example, in the above-described embodiment, an example of connecting the power supply facility 116 to the single-phase three-wire system 100V among the single-phase three-wire system 100 / 200V has been described. However, it is not limited to the single-phase three-wire system 100V, and even if it is connected to the single-phase three-wire system 200V, if the power supply facility 116 establishes communication with the outside and can refer to the received power through the established communication, the cost will increase. It can have the effect of properly outputting power while avoiding it.

本発明は、電力を供給する電力供給設備に利用することができる。 The present invention can be used in a power supply facility that supplies power.

１００、１５０、１６０ 電力システム
１１２ 電力メータ
１１６ 電力供給設備
１１６ａ 発電部
１１６ｃ 通信部
１４０ 情報取得部
１４４ 出力制御部
１６２ ＨＥＭＳ（エネルギー管理システム） 100, 150, 160 Electric power system 112 Electric power meter 116 Electric power supply equipment 116a Power generation unit 116c Communication unit 140 Information acquisition unit 144 Output control unit 162 HEMS (energy management system)

Claims (5)

他のエネルギーを電気エネルギーに変換して電力を生成する発電部と、
外部と通信を確立する通信部と、
前記通信部を通じて、電力系統からの受電点における受電電力を特定可能な受電電力情報を取得する情報取得部と、
前記受電電力情報に基づく受電電力が所定の値となるように、前記発電部の出力電力を制御する出力制御部と、
を備える電力供給設備。 A power generation unit that converts other energy into electrical energy to generate electric power,
With the communication unit that establishes communication with the outside
An information acquisition unit that acquires received power information that can specify the received power at the receiving point from the power system through the communication unit, and an information acquisition unit.
An output control unit that controls the output power of the power generation unit so that the received power based on the received power information becomes a predetermined value.
Power supply equipment equipped with. 前記通信部は、前記受電点に設置された電力メータと通信を確立し、
前記情報取得部は、前記電力メータで測定された電力情報に含まれる前記受電電力情報を取得する請求項１に記載の電力供給設備。 The communication unit establishes communication with a power meter installed at the power receiving point.
The power supply facility according to claim 1, wherein the information acquisition unit acquires the received power information included in the power information measured by the power meter. 前記通信部は、電力メータの情報を収集する管理サーバと通信を確立し、
前記情報取得部は、前記管理サーバから、前記受電点に設置された電力メータで測定された電力情報に含まれる前記受電電力情報を取得する請求項１に記載の電力供給設備。 The communication unit establishes communication with the management server that collects the information of the electricity meter.
The power supply facility according to claim 1, wherein the information acquisition unit acquires the received power information included in the power information measured by the power meter installed at the power receiving point from the management server. 前記通信部は、需要者の構内における電力を管理するエネルギー管理システムと通信を確立し、
前記情報取得部は、前記エネルギー管理システムから、前記受電点における前記受電電力情報を取得する請求項１に記載の電力供給設備。 The communication unit establishes communication with an energy management system that manages electric power on the premises of the consumer.
The power supply facility according to claim 1, wherein the information acquisition unit acquires the received power information at the power receiving point from the energy management system. 前記通信部は、電力線を通信回線とするＰＬＣを通じて通信を確立する請求項１から４のいずれか１項に記載の電力供給設備。 The power supply facility according to any one of claims 1 to 4, wherein the communication unit establishes communication through a PLC having a power line as a communication line.
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