JP6830021B2 - Power monitoring device - Google Patents

Power monitoring device Download PDF

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JP6830021B2
JP6830021B2 JP2017076984A JP2017076984A JP6830021B2 JP 6830021 B2 JP6830021 B2 JP 6830021B2 JP 2017076984 A JP2017076984 A JP 2017076984A JP 2017076984 A JP2017076984 A JP 2017076984A JP 6830021 B2 JP6830021 B2 JP 6830021B2
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charging
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opening
mobile terminal
electric circuit
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JP2018182853A (en
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晃 志知
晃 志知
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河村電器産業株式会社
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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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • 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
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/12—Remote or cooperative charging

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  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Description

本発明は、家庭において電気自動車を充電する際に、電力使用状況に応じて充電電流を制御して充電を継続する電力監視装置に関する。 The present invention relates to a power monitoring device that controls a charging current according to a power usage status to continue charging when charging an electric vehicle at home.

従来より、電気自動車を充電する際に、家庭全体の使用電力を考慮して充電電流を増減させ充電を継続させる電力監視装置が提案されている。
例えば、特許文献１の電力監視装置では、主幹ブレーカに流れる電流を監視し、電気自動車充電中に主幹ブレーカに流れる電流が契約電流に近づいたら電気自動車の充電電流を一定量削減して家庭全体の使用電力が契約電流を超えないよう制御した。また、このときの制御状況を報知装置に表示させた。 Conventionally, when charging an electric vehicle, a power monitoring device has been proposed in which the charging current is increased or decreased in consideration of the power consumption of the entire household to continue charging.
For example, the power monitoring device of Patent Document 1 monitors the current flowing through the main breaker, and when the current flowing through the main breaker approaches the contract current during charging of the electric vehicle, the charging current of the electric vehicle is reduced by a certain amount to reduce the charging current of the entire household. The power consumption was controlled so as not to exceed the contract current. In addition, the control status at this time was displayed on the notification device.

特開２０１２−２４４８０１号公報Japanese Unexamined Patent Publication No. 2012-244801

上記特許文献１では、使用電流が契約電流を超えないよう電力監視装置が制御し、その制御状況が電力監視装置に有線接続されている報知装置に表示されたため、住人は電力の使用状況や電気自動車の充電状況を把握できた。しかしながら、報知装置は屋内の特定位置に固定設置されたものであるため、別の部屋にいたら状況を把握できなかった。まして外出先から把握することはできなかった。
一方で、近年電力量計が遮断機能を備えたスマートメータに替わりつつあり、そのような場合、契約電流を越える電流が流れたら遮断動作するため、使用電流の把握はますます重要であるし、電気自動車の充電装置に関しては、屋外に設置されるにも関わらず分電盤から配設されたため、配線工事が面倒であったし、充電装置は無断で使用される可能性があり、家を留守にしている際に電力を盗まれてもそれを把握することができなかったため、電力使用状況の監視が重要となってきている。 In Patent Document 1, the power monitoring device controls the current used so as not to exceed the contracted current, and the control status is displayed on the notification device wiredly connected to the power monitoring device. Therefore, the resident can use the power and electricity. I was able to grasp the charging status of the car. However, since the notification device was fixedly installed at a specific position indoors, the situation could not be grasped if it was in another room. Moreover, I couldn't grasp it from outside.
On the other hand, in recent years, watt-hour meters are being replaced by smart meters equipped with a cut-off function. Regarding the charging device of the electric vehicle, the wiring work was troublesome because it was arranged from the distribution board even though it was installed outdoors, and the charging device may be used without permission. Even if the power is stolen while you are away, you could not grasp it, so it is becoming important to monitor the power usage status.

そこで、本発明はこのような問題点に鑑み、充電装置への配線を容易に実施できると共に、電気自動車の充電状況を外出先でも把握可能とし、さらに外出先から電気自動車の充電を遮断できる電力監視装置を提供することを目的としている。 Therefore, in view of such a problem, the present invention can easily carry out wiring to the charging device, can grasp the charging status of the electric vehicle even when going out, and can cut off the charging of the electric vehicle from the outside. It is intended to provide a monitoring device.

上記課題を解決する為に、請求項１の発明は、消費電力を計測すると共に、契約電流値を超える電流が通電されたら電力供給を遮断する機能を備えたスマートメータからの主電路を引き込んで分岐し、分岐した一方の電路を電気自動車を充電する充電装置に接続し、他方の電路を住宅用分電盤へ接続し、充電装置から電気自動車への通電情報を充電装置から入手する通信手段と、公衆通信網を介して特定の携帯端末と通信を可能とする通信モジュールと、通信手段が入手した通電情報を通信モジュールを介して携帯端末へ通知する制御部とを有することを特徴とする。
この構成によれば、スマートメータからの主電路を分岐して充電装置への配線を設けるため、充電装置への配線が容易であるし、携帯端末で自宅の充電装置の使用状況を把握できるため、無断充電等の不正使用を把握でき、その対応が可能となる。
尚、契約電流値とは、電力供給業者と交わした受電可能な最大電流値であり、この電流値を超える電流の供給を受けたらスマートメータは主電路を遮断する。 In order to solve the above problem, the invention of claim 1 draws in a main electric circuit from a smart meter having a function of measuring power consumption and cutting off power supply when a current exceeding the contract current value is energized. A communication means for branching and connecting one of the branched electric circuits to a charging device for charging an electric vehicle, connecting the other electric circuit to a residential distribution panel, and obtaining energization information from the charging device to the electric vehicle from the charging device. It is characterized by having a communication module that enables communication with a specific mobile terminal via a public communication network, and a control unit that notifies the mobile terminal of energization information obtained by a communication means via the communication module. ..
According to this configuration, since the main electric circuit from the smart meter is branched and the wiring to the charging device is provided, the wiring to the charging device is easy and the usage status of the charging device at home can be grasped by the mobile terminal. , Unauthorized use such as unauthorized charging can be grasped, and it is possible to deal with it.
The contracted current value is the maximum current value that can be received by the electric power supplier, and the smart meter cuts off the main electric circuit when a current exceeding this current value is supplied.

請求項２の発明は、請求項１に記載の構成において、主電路を開閉する開閉手段と、開閉手段を操作する開閉操作部とを有し、制御部は、携帯端末から開閉手段を開閉する操作信号を通信モジュールが受信したら、操作信号に応じた開閉操作を開閉操作部を介して実施することを特徴とする。
この構成によれば、携帯端末から主電路の開閉を実施できるため、不在となった自宅の電源を完全にオフにでき、充電装置が不正に使用されていることがわかった場合は、主電路を遮断操作することで充電装置をオフでき、不正使用に対処できる。 The invention of claim 2 has the opening / closing means for opening / closing the main electric circuit and the opening / closing operation unit for operating the opening / closing means in the configuration according to claim 1, and the control unit opens / closes the opening / closing means from the mobile terminal. When the communication module receives the operation signal, the opening / closing operation according to the operation signal is performed via the opening / closing operation unit.
According to this configuration, the main electric circuit can be opened and closed from the mobile terminal, so that the power of the absent home can be completely turned off, and if it is found that the charging device is being used illegally, the main electric circuit can be opened and closed. The charging device can be turned off by shutting off the device, and unauthorized use can be dealt with.

請求項３の発明は、請求項１又は２に記載の構成において、制御部は、通信手段を介して充電装置に対して充電電流を制御する制御信号を送信可能であると共に、充電装置は、制御信号を受けて充電電流を制御する機能を有し、制御部は、主電路に設けられている電流センサにより主電路の電流値を把握し、電気自動車の充電中に主電路の電流が特定の値を超えたら、充電装置に充電電流を削減させる制御信号を送信すると共に、当該制御信号の制御内容を携帯端末に通知することを特徴とする。
この構成によれば、主電路の電流が特定の値を超えたら電気自動車の充電電流を削減する制御を実施するため、特定の値をスマートメータが遮断動作する契約電流値より僅かに小さい電流値に設定することで、スマートメータが遮断動作する事態を防止できる。そして、この制御内容が携帯端末に通知されるため、住人は外出していても自宅の使用電力の状況を把握できる。 According to the invention of claim 3, in the configuration according to claim 1 or 2, the control unit can transmit a control signal for controlling the charging current to the charging device via the communication means, and the charging device is capable of transmitting the control signal. It has a function to control the charging current by receiving a control signal, and the control unit grasps the current value of the main electric circuit by the current sensor provided in the main electric circuit, and identifies the current of the main electric circuit during charging of the electric vehicle. When the value exceeds the value of, a control signal for reducing the charging current is transmitted to the charging device, and the control content of the control signal is notified to the mobile terminal.
According to this configuration, when the current of the main electric circuit exceeds a specific value, control is performed to reduce the charging current of the electric vehicle. Therefore, the current value slightly smaller than the contract current value at which the smart meter cuts off the specific value. By setting to, it is possible to prevent the smart meter from shutting down. Then, since the control content is notified to the mobile terminal, the resident can grasp the status of the power consumption at home even when he / she is out.

本発明によれば、携帯端末で自宅の充電装置の使用状況を把握できるため、無断充電等の不正使用を把握でき、その対応が可能となる。そして、携帯端末から主電路の開閉を実施できるため、充電装置が不正に使用されていても主電路を遮断操作することで、充電装置をオフでき、不正使用に対処できる。 According to the present invention, since the usage status of the charging device at home can be grasped by the mobile terminal, it is possible to grasp the unauthorized use such as unauthorized charging and to deal with it. Then, since the main electric circuit can be opened and closed from the mobile terminal, even if the charging device is used illegally, the charging device can be turned off by shutting off the main electric circuit, and the illegal use can be dealt with.

電力監視装置を接続した電路の説明図である。It is explanatory drawing of the electric circuit which connected the electric power monitoring device. 電力監視装置のブロック図である。It is a block diagram of a power monitoring device.

以下、本発明を具体化した実施の形態を、図面を参照して詳細に説明する。図１は本発明に係る電力監視装置を接続した電路の説明図であり、１はスマートメータ、２は電力監視装置、３は充電装置であるＥＶ充電器、４は電気自動車であるＥＶ車、５は携帯端末の１つであるスマートフォン等の携帯電話、６は遮断器である。 Hereinafter, embodiments embodying the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory diagram of an electric circuit to which an electric power monitoring device according to the present invention is connected, in which 1 is a smart meter, 2 is a power monitoring device, 3 is an EV charger which is a charging device, and 4 is an EV vehicle which is an electric vehicle. Reference numeral 5 denotes a mobile phone such as a smartphone, which is one of the mobile terminals, and 6 is a breaker.

スマートメータ１の一次側には商用電力系統（商用電源）からの引き込み線Ｌ１が接続され、その２次側を構成する主電路Ｌ２は電力監視装置２に接続されている。このスマートメータ１は、消費電力の計測に加えて遮断機能を有し、契約電流を超える電流が通電されたら電路を遮断する機能を備えている。 A service line L1 from a commercial power system (commercial power supply) is connected to the primary side of the smart meter 1, and a main electric circuit L2 constituting the secondary side is connected to the power monitoring device 2. This smart meter 1 has a cutoff function in addition to measuring power consumption, and has a function of cutting off an electric circuit when a current exceeding the contract current is energized.

電力監視装置２は、主電路Ｌ２を分岐して出力する２回路の分岐電路Ｌ３，Ｌ４と、１回路の通信線Ｓ１と、公衆通信網Ｎとの接続線Ｓ２が接続されている。この接続線Ｓ２、公衆通信網Ｎを介して携帯端末５と通信を可能としている。
分岐電路の一方の第１電路Ｌ３は住宅用分電盤（図示せず）に接続され、他方の第２電路Ｌ４は遮断器６を介してＥＶ充電器３に接続されている。また通信線Ｓ１はＥＶ充電器３に接続されている。ＥＶ車４はＥＶ充電器３に充電ケーブルＬ５を接続して充電される。 In the power monitoring device 2, the branch electric lines L3 and L4 of two circuits that branch and output the main electric line L2, the communication line S1 of one circuit, and the connection line S2 of the public communication network N are connected. Communication with the mobile terminal 5 is possible via the connection line S2 and the public communication network N.
One first electric circuit L3 of the branch electric circuit is connected to a residential distribution board (not shown), and the other second electric circuit L4 is connected to the EV charger 3 via a circuit breaker 6. Further, the communication line S1 is connected to the EV charger 3. The EV vehicle 4 is charged by connecting the charging cable L5 to the EV charger 3.

図２は電力監視装置２のブロック図を示し、２１は主電路Ｌ２上に配置した開閉手段としての開閉接点、２２は開閉接点２１を遮断／投入操作（開閉操作）するプランジャや電動モータが組み込まれた開閉操作部、２３は主電路Ｌ２の電流を検出する例えば零相変流器から成る電流センサ、２４は電力監視装置２全体を制御する制御部、２５は個々の回路の駆動電源を生成する電源部、２７は携帯端末５と通信するための通信モジュール、２８はＥＶ充電器３と通信するための通信用ドライバである。 FIG. 2 shows a block diagram of the power monitoring device 2, in which 21 is an opening / closing contact as an opening / closing means arranged on the main electric circuit L2, and 22 is a plunger or an electric motor for shutting / closing (opening / closing) the opening / closing contact 21. 23 is a current sensor consisting of, for example, a zero-phase current converter that detects the current in the main circuit L2, 24 is a control unit that controls the entire power monitoring device 2, and 25 generates a drive power supply for each circuit. The power supply unit 27 is a communication module for communicating with the mobile terminal 5, and 28 is a communication driver for communicating with the EV charger 3.

制御部２４はＣＰＵを内蔵して構成され、開閉操作部２２を操作し、通信モジュール２７を介して携帯端末５と通信を実施すると共に、通信用ドライバ２８を介してＥＶ充電器３とも通信を実施して、ＥＶ充電器３を制御する。
尚、携帯端末５は、電力監視装置２と通信して所定の表示を実施すると共に、電力監視装置２が受信可能な信号を生成して送信するためのアプリケーションソフトウェアがインストールされている。 The control unit 24 has a built-in CPU, operates the opening / closing operation unit 22, communicates with the mobile terminal 5 via the communication module 27, and also communicates with the EV charger 3 via the communication driver 28. This is done to control the EV charger 3.
The mobile terminal 5 is installed with application software for communicating with the power monitoring device 2 to perform a predetermined display and generating and transmitting a signal that the power monitoring device 2 can receive.

またＥＶ充電器３は、ＥＶ車４の充電電流を制御する充電電流制御回路３ａ、外部機器と通信する通信部３ｂを内蔵し、外部信号により充電電流を変更する機能に加えて、充電開始／終了や充電電流情報を外部に通知する機能を有している。 Further, the EV charger 3 has a built-in charging current control circuit 3a for controlling the charging current of the EV vehicle 4 and a communication unit 3b for communicating with an external device. In addition to the function of changing the charging current by an external signal, charging start / It has a function to notify the end and charging current information to the outside.

上記の如く構成された電力監視装置２の動作は以下のようである。上述したように、制御部２４は通信用ドライバ２８を介してＥＶ充電器３と通信を実施し、充電電流情報をＥＶ充電器３から入手するし、ＥＶ充電器３に対して充電電流を制御する制御信号を送信する。また、通信モジュール２７を介して携帯端末５と通信を実施し、携帯端末５に対して充電状況（充電中であるかそうでないかの情報）を通知するし、携帯端末５から送信された操作信号を受けて、開閉接点２１の操作や充電電流の変更制御を実施する。 The operation of the power monitoring device 2 configured as described above is as follows. As described above, the control unit 24 communicates with the EV charger 3 via the communication driver 28, obtains charging current information from the EV charger 3, and controls the charging current for the EV charger 3. Send a control signal. In addition, communication is performed with the mobile terminal 5 via the communication module 27, the charging status (information on whether charging is in progress or not) is notified to the mobile terminal 5, and the operation transmitted from the mobile terminal 5 is performed. Upon receiving the signal, the opening / closing contact 21 is operated and the charging current is changed and controlled.

具体的に、ＥＶ車４がＥＶ充電器３に接続されて充電が開始されると、ＥＶ充電器３から通信用ドライバ２８に対して充電開始信号が送信され、通信用ドライバ２８から制御部２４へ充電開始が通知される。また、充電が終了すると充電終了信号が通信用ドライバ２８に送信され、通信用ドライバ２８から制御部２４へ充電終了の通知が成される。
制御部２４では、充電開始の通知を受けると、通信モジュール２７を介して携帯端末５に対して充電開始を通知し、これを受信した携帯端末５では、アプリケーションソフトウェアが起動して、例えば「電気自動車の充電が開始されました」が表示される。
また、充電終了の通知を受けた制御部２４は、携帯端末５に充電終了を通知し、携帯端末５では「電気自動車の充電が終了しました」の表示が成される。 Specifically, when the EV vehicle 4 is connected to the EV charger 3 and charging is started, a charging start signal is transmitted from the EV charger 3 to the communication driver 28, and the communication driver 28 sends the control unit 24. Is notified of the start of charging. When charging is completed, a charging end signal is transmitted to the communication driver 28, and the communication driver 28 notifies the control unit 24 of the end of charging.
When the control unit 24 receives the charging start notification, the mobile terminal 5 is notified of the charging start via the communication module 27, and the mobile terminal 5 that receives the notification activates the application software, for example, "electricity. The car has started charging "is displayed.
In addition, the control unit 24 that has received the notification of the end of charging notifies the mobile terminal 5 of the end of charging, and the mobile terminal 5 displays "Charging of the electric vehicle is completed".

一方、携帯端末５から操作信号を受信した制御部２４は、次のように制御動作する。携帯端末５から送信される操作信号には、主電路Ｌ２を遮断する遮断信号、遮断した主電路Ｌ２を復帰させる復帰信号、充電電流を削減する削減信号等がある。
遮断信号を受信した制御部２４は、開閉操作部２２を開操作して開閉接点２１を開動作させるし、その後復帰信号を受信したら開閉操作部２２を閉操作して開閉接点２１を閉動作させて復帰させ、主電路Ｌ２を通電させる。
尚、遮断動作させた時点で、家庭内全体の電力の供給が停止するが、電力監視装置２には別途蓄電部を有しており携帯端末５との通信機能は維持され、復帰操作を可能としている。 On the other hand, the control unit 24 that has received the operation signal from the mobile terminal 5 performs the control operation as follows. The operation signal transmitted from the mobile terminal 5 includes a cutoff signal that cuts off the main electric circuit L2, a return signal that restores the cut main electric circuit L2, a reduction signal that reduces the charging current, and the like.
Upon receiving the cutoff signal, the control unit 24 opens the open / close operation unit 22 to open the open / close contact 21, and then receives the return signal to close the open / close operation unit 22 to close the open / close contact 21. The main electric line L2 is energized.
At the time of shut-off operation, the power supply of the entire home is stopped, but the power monitoring device 2 has a separate power storage unit, the communication function with the mobile terminal 5 is maintained, and the return operation is possible. It is said.

更に、携帯端末５から削減信号を受信した制御部２４は、充電電流を所定量削減させる信号をＥＶ充電器３に送信する。ＥＶ充電器３では、削減信号を受けて、予め設定された電流値を削減する制御を実施する。この結果、ＥＶ車４の充電電流は削減される。 Further, the control unit 24, which has received the reduction signal from the mobile terminal 5, transmits a signal for reducing the charging current by a predetermined amount to the EV charger 3. The EV charger 3 receives the reduction signal and performs control to reduce the preset current value. As a result, the charging current of the EV vehicle 4 is reduced.

このように、スマートメータ１からの主電路Ｌ２を分岐してＥＶ充電器３への配線を設けるため、ＥＶ充電器３への配線が容易であるし、携帯端末５で自宅のＥＶ充電器３の使用状況を把握できるため、無断充電等の不正使用を把握でき、その対応が可能となる。
そして、携帯端末５から主電路Ｌ２の開閉を実施できるため、不在となった自宅の電源を完全にオフにできる。特に、ＥＶ充電器３が不正に使用されていることがわかった場合は、主電路Ｌ２を遮断操作することでＥＶ充電器をオフでき、不正使用に対処できる。 In this way, since the main electric circuit L2 from the smart meter 1 is branched to provide the wiring to the EV charger 3, the wiring to the EV charger 3 is easy, and the mobile terminal 5 is used to connect the EV charger 3 at home. Since it is possible to grasp the usage status of the device, it is possible to grasp the unauthorized use such as unauthorized charging, and it is possible to deal with it.
Then, since the main electric line L2 can be opened and closed from the mobile terminal 5, the power of the absent home can be completely turned off. In particular, when it is found that the EV charger 3 is being used illegally, the EV charger can be turned off by shutting off the main electric circuit L2, and the illegal use can be dealt with.

また、制御部２４はスマートメータ１が遮断動作する閾値である契約電流値に対して所定量小さい特定の値としての第１の電流値（例えば、契約電流値の８０％の電流値）を記憶しており、主電路Ｌ２に流れる電流情報を電流センサ２３から入手してこの第１の電流値と常時比較している。そして、ＥＶ車４の充電を開始することで、主電路Ｌ２に流れる電流が第１の電流値を超える場合が発生したら、次のような制御を実施する。 Further, the control unit 24 stores a first current value (for example, a current value of 80% of the contract current value) as a specific value that is a predetermined amount smaller than the contract current value that is the threshold value at which the smart meter 1 shuts off. The current information flowing through the main electric circuit L2 is obtained from the current sensor 23 and constantly compared with the first current value. Then, when charging of the EV vehicle 4 is started and the current flowing through the main electric circuit L2 exceeds the first current value, the following control is performed.

まず、ＥＶ充電器３に対して通信用ドライバ２８を介して制御信号を送信し、充電電流を所定量削減させる。例えば、充電電流が３０アンペアであれば１０アンペア削減させて２０アンペアに移行させる。この制御信号を受けたＥＶ充電器３は、充電電流を２０アンペアに下げて充電を継続させる。
合わせて制御部２４は、制御内容である充電電流の削減情報を通信モジュール２７を介して携帯端末５に通知する。この通知を受けた携帯端末５では、主電路Ｌ２の電流が契約電流に近づいたため、充電電流が削減された旨が表示される。 First, a control signal is transmitted to the EV charger 3 via the communication driver 28 to reduce the charging current by a predetermined amount. For example, if the charging current is 30 amps, it is reduced by 10 amps to shift to 20 amps. Upon receiving this control signal, the EV charger 3 reduces the charging current to 20 amperes to continue charging.
At the same time, the control unit 24 notifies the mobile terminal 5 of the reduction information of the charging current, which is the control content, via the communication module 27. In the mobile terminal 5 that has received this notification, it is displayed that the charging current has been reduced because the current of the main electric circuit L2 has approached the contract current.

更に制御部２４は、第１の電流値より更に小さい第２の電流値（例えば、契約電流値の５０％の電流値）を記憶しており、充電電流を削減した状態で主電路Ｌ２に流れる電流値がこの第２の電流値を下回ったら、削減した充電電流を本来の電流値に復帰させる信号をＥＶ充電器３に送信する。この結果、ＥＶ車４の充電電流は本来の電流値での充電に復帰する。 Further, the control unit 24 stores a second current value (for example, a current value of 50% of the contract current value) which is smaller than the first current value, and flows to the main electric line L2 in a state where the charging current is reduced. When the current value falls below this second current value, a signal for returning the reduced charging current to the original current value is transmitted to the EV charger 3. As a result, the charging current of the EV vehicle 4 returns to charging at the original current value.

このように、主電路Ｌ２の電流が特定の値を超えたらＥＶ車４の充電電流を削減する制御を実施するため、特定の値をスマートメータ１が遮断動作する契約電流値より僅かに小さい電流値に設定することで、スマートメータ１が遮断動作する事態を防止できる。そして、この制御内容が携帯端末５に通知されるため、住人は外出していても自宅の使用電力の状況を把握できる。
また、家庭全体の使用電流が減少したら、充電電流が増加し、本来の電流値での充電が行われるため、効率の良い充電を実施できる。 In this way, in order to carry out control to reduce the charging current of the EV vehicle 4 when the current of the main electric circuit L2 exceeds a specific value, the current slightly smaller than the contract current value at which the smart meter 1 cuts off the specific value. By setting the value, it is possible to prevent the smart meter 1 from shutting down. Then, since the control content is notified to the mobile terminal 5, the resident can grasp the status of the power consumption at home even when he / she is out.
In addition, when the current used in the entire household decreases, the charging current increases and charging is performed at the original current value, so that efficient charging can be performed.

尚、上記実施形態では、携帯端末５の操作で制御部２４が開閉接点２１を開操作して、家庭全体の電源をオフ操作することでＥＶ充電器３をオフしているが、通信用ドライバ２８を介してＥＶ充電器３にオフ信号を送信して、ＥＶ充電器３のみオフ操作しても良い。
また、携帯端末５は、スマートフォンでなくても良く、タブレット型の端末であっても良い。 In the above embodiment, the control unit 24 opens the open / close contact 21 by operating the mobile terminal 5 to turn off the power supply of the entire household to turn off the EV charger 3, but the communication driver. An off signal may be transmitted to the EV charger 3 via the 28 to turn off only the EV charger 3.
Further, the mobile terminal 5 does not have to be a smartphone, and may be a tablet type terminal.

１・・スマートメータ、２・・電力監視装置、３・・ＥＶ充電器（充電装置）、４・・ＥＶ車（電気自動車）、５・・携帯端末、２１・・開閉接点（開閉手段）、２２・・開閉操作部、２３・・電流センサ、２４・・制御部、２７・・通信モジュール、２８・・通信用ドライバ（通信手段）、Ｌ２・・主電路、Ｎ・・公衆通信網。 1 ... Smart meter, 2 ... Power monitoring device, 3 ... EV charger (charging device), 4 ... EV car (electric vehicle), 5 ... Mobile terminal, 21 ... Opening / closing contact (opening / closing means), 22 ... Open / close operation unit, 23 ... Current sensor, 24 ... Control unit, 27 ... Communication module, 28 ... Communication driver (communication means), L2 ... Main electric line, N ... Public communication network.

Claims (3)

消費電力を計測すると共に、契約電流値を超える電流が通電されたら電力供給を遮断する機能を備えたスマートメータからの主電路を引き込んで分岐し、分岐した一方の電路を電気自動車を充電する充電装置に接続し、他方の電路を住宅用分電盤へ接続し、
前記充電装置から電気自動車への通電情報を前記充電装置から入手する通信手段と、
公衆通信網を介して特定の携帯端末と通信を可能とする通信モジュールと、
前記通信手段が入手した前記通電情報を前記通信モジュールを介して前記携帯端末へ通知する制御部とを有することを特徴とする電力監視装置。 Charging that measures the power consumption and pulls in the main electric circuit from a smart meter equipped with a function to cut off the power supply when a current exceeding the contract current value is energized, branches, and charges the electric vehicle with one of the branched electric circuits. Connect to the device, connect the other circuit to the residential distribution board,
A communication means for obtaining information on energization from the charging device to the electric vehicle from the charging device, and
A communication module that enables communication with a specific mobile terminal via a public communication network,
A power monitoring device including a control unit that notifies the mobile terminal of the energization information obtained by the communication means via the communication module. 前記主電路を開閉する開閉手段と、前記開閉手段を操作する開閉操作部とを有し、
前記制御部は、前記携帯端末から前記開閉手段を開閉する操作信号を前記通信モジュールが受信したら、前記操作信号に応じた開閉操作を前記開閉操作部を介して実施することを特徴とする請求項１記載の電力監視装置。 It has an opening / closing means for opening / closing the main electric circuit and an opening / closing operation unit for operating the opening / closing means.
The control unit is characterized in that when the communication module receives an operation signal for opening and closing the opening / closing means from the mobile terminal, the control unit performs an opening / closing operation in response to the operation signal via the opening / closing operation unit. 1. The power monitoring device according to 1. 前記制御部は、前記通信手段を介して前記充電装置に対して充電電流を制御する制御信号を送信可能であると共に、前記充電装置は、前記制御信号を受けて充電電流を制御する機能を有し、
前記制御部は、前記主電路に設けられている電流センサにより前記主電路の電流値を把握し、電気自動車の充電中に前記主電路の電流が特定の値を超えたら、前記充電装置に充電電流を削減させる制御信号を送信すると共に、当該制御信号の制御内容を前記携帯端末に通知することを特徴とする請求項１又は２記載の電力監視装置。 The control unit can transmit a control signal for controlling the charging current to the charging device via the communication means, and the charging device has a function of receiving the control signal to control the charging current. And
The control unit grasps the current value of the main electric circuit by the current sensor provided in the main electric circuit, and charges the charging device when the current of the main electric circuit exceeds a specific value during charging of the electric vehicle. The power monitoring device according to claim 1 or 2, wherein a control signal for reducing the current is transmitted, and the control content of the control signal is notified to the mobile terminal.
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