JP2021019455A - Power management device and power management system - Google Patents

Power management device and power management system Download PDF

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JP2021019455A
JP2021019455A JP2019134620A JP2019134620A JP2021019455A JP 2021019455 A JP2021019455 A JP 2021019455A JP 2019134620 A JP2019134620 A JP 2019134620A JP 2019134620 A JP2019134620 A JP 2019134620A JP 2021019455 A JP2021019455 A JP 2021019455A
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amount
power
power supply
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supply amount
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操 後藤
Misao Goto
操 後藤
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Isuzu Motors Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T90/12—Electric charging stations
    • 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
    • Y02T90/14—Plug-in electric vehicles
    • 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

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Abstract

To provide a power management device capable of appropriately controlling generation and supply of power depending on demand without influencing utilization of an electric vehicle.SOLUTION: A power management device 10 comprises: a demand amount recognition section 72 for recognizing a demand amount of a power consumption device 2; a power supply amount recognition section 73 for recognizing power supply amounts of a thermal power generation facility 3 and a photovoltaic power generation facility 4; a required electric energy estimation section 66 for estimating required electric energy of an electric vehicle 6 on the basis of a travel history; a dischargeable amount calculation section 67 for calculating a dischargeable amount of a battery 62; and a control section 74 that when the total power supply amount of the thermal power generation facility 3 and the photovoltaic power generation facility 4 exceeds the demand amount, supplies the demand amount of power to the power consumption device 2 and charges the battery 62 with power of a difference between the total power supply amount and the demand amount and, when the total power supply amount is lower than the demand amount, makes the battery 62 discharge power so that the residual amount becomes equal to or larger than the required electric energy and supplies the discharged power and power from the thermal power generation facility 3 and the photovoltaic power generation facility 4 to the power consumption device 2.SELECTED DRAWING: Figure 1

Description

本開示は、電力管理装置及び電力管理システムに関する。 The present disclosure relates to power management devices and power management systems.

従来、例えば特許文献１に開示されるように、商用の電力系統、負荷装置、太陽光発電装置及び電気自動車への電気の流れを制御する電力管理装置が知られている。特許文献１に開示の電力管理装置においては、太陽光発電装置の余剰電力を検出した場合、当該余剰電力を電気自動車のバッテリに充電する。一方、電力管理装置は、余剰電力を検出しない場合、電気自動車のバッテリの蓄電量を検出し、当該検出した蓄電量が所定値以上の場合に自動で放電させる。 Conventionally, for example, as disclosed in Patent Document 1, a power management device for controlling the flow of electricity to a commercial power system, a load device, a photovoltaic power generation device, and an electric vehicle is known. In the power management device disclosed in Patent Document 1, when the surplus power of the photovoltaic power generation device is detected, the surplus power is charged into the battery of the electric vehicle. On the other hand, when the power management device does not detect the surplus power, it detects the amount of electricity stored in the battery of the electric vehicle, and when the detected amount of electricity stored is equal to or greater than a predetermined value, it automatically discharges the battery.

特開２０１７−２８９６９号公報Japanese Unexamined Patent Publication No. 2017-28969

しかしながら、特許文献１のような構成では、放電後に電気自動車を利用する場合、バッテリの残量が足りなくて、目的地までたどり着けないおそれがある。このような事態を回避する前に、運転手が利用前に充電を行うことも考えられるが、充電の間、待機する必要があり、出発が遅れてしまう。 However, in the configuration as in Patent Document 1, when the electric vehicle is used after discharging, the remaining battery level may be insufficient and the destination may not be reached. Before avoiding such a situation, it is conceivable that the driver charges the vehicle before use, but it is necessary to wait during the charging, which delays the departure.

本開示の目的は、電気自動車の利用に影響を及ぼすことなく需要に応じた電力の発生と供給を適切に制御できる電力管理装置及び電力管理システムを提供することである。 An object of the present disclosure is to provide a power management device and a power management system capable of appropriately controlling the generation and supply of electric power according to demand without affecting the use of electric vehicles.

本開示に係る電力管理装置は、電力消費装置、給電量を調整可能な第１の給電部、給電量を調整不能な第２の給電部及び電気自動車に対する電気の流れを制御する電力管理装置であって、前記電力消費装置における電力の需要量を認識する需要量認識部と、前記第１の給電部の給電量及び前記第２の給電部の給電量を認識する給電量認識部と、前記電気自動車の走行履歴に基づいて、前記電気自動車の走行に必要な必要電力量を推定する必要電力量推定部と、前記電気自動車のバッテリの放電後の残量が前記必要電力量以上となるような放電可能量を算出する放電可能量算出部と、制御部と、を備え、前記制御部は、前記第１の給電部及び前記第２の給電部の第１の合計給電量が前記需要量を超える場合、前記需要量の電力を前記電力消費装置に供給するとともに、前記第１の合計給電量と前記需要量の差の電力を前記電気自動車のバッテリに充電し、前記第１の合計給電量が前記需要量未満の場合、前記放電可能量に基づいて、前記電気自動車のバッテリを残量が前記必要電力量以上になるように放電させ、前記バッテリから放電された電力と前記第１の給電部及び前記第２の給電部が給電した電力とによって、前記需要量の電力を前記電力消費装置に供給する。 The power management device according to the present disclosure is a power consumption device, a first power supply unit whose power supply amount can be adjusted, a second power supply unit whose power supply amount cannot be adjusted, and a power management device that controls the flow of electricity to an electric vehicle. The demand amount recognition unit that recognizes the power demand amount in the power consumption device, the power supply amount recognition unit that recognizes the power supply amount of the first power supply unit and the power supply amount of the second power supply unit, and the above. Based on the running history of the electric vehicle, the required power amount estimation unit that estimates the required power amount required for the running of the electric vehicle and the remaining amount of the battery of the electric vehicle after discharge are equal to or more than the required power amount. The control unit includes a dischargeable amount calculation unit and a control unit for calculating a dischargeable amount, and the control unit has the demand amount as the first total power supply amount of the first power supply unit and the second power supply unit. In the case of exceeding the above, the electric power of the demand amount is supplied to the power consuming device, and the electric power of the difference between the first total power supply amount and the demand amount is charged to the battery of the electric vehicle, and the first total power supply amount is supplied. When the amount is less than the demand amount, the battery of the electric vehicle is discharged so that the remaining amount becomes equal to or more than the required power amount based on the dischargeable amount, and the power discharged from the battery and the first The power of the demand amount is supplied to the power consuming device by the power supplied by the power supply unit and the second power supply unit.

本開示に係る電力管理システムは、電力消費装置と、給電量を調整可能な第１の給電部と、給電量を調整不能な第２の給電部と、電気自動車と、上述の電力管理装置と、を備える。 The power management system according to the present disclosure includes a power consumption device, a first power supply unit whose power supply amount can be adjusted, a second power supply unit whose power supply amount cannot be adjusted, an electric vehicle, and the above-mentioned power management device. , Equipped with.

本開示によれば、電気自動車の利用に影響を及ぼすことなく需要に応じた電力の発生と供給を適切に制御できる電力管理装置及び電力管理システムを提供することができる。 According to the present disclosure, it is possible to provide an electric power management device and an electric power management system capable of appropriately controlling the generation and supply of electric power according to demand without affecting the use of an electric vehicle.

本開示の実施の形態に係る電力管理システムのブロック図Block diagram of the power management system according to the embodiment of the present disclosure 本開示の実施の形態に係る電力管理方法のフローチャートFlowchart of power management method according to the embodiment of the present disclosure 本開示の実施の形態に係る電力管理方法のフローチャートFlowchart of power management method according to the embodiment of the present disclosure

［電力管理システムの構成］
まず、本開示の実施の形態に係る電力管理システムの構成について説明する。図１は、電力管理システムのブロック図である。 [Power management system configuration]
First, the configuration of the power management system according to the embodiment of the present disclosure will be described. FIG. 1 is a block diagram of a power management system.

電力管理システム１は、電力消費装置２と、給電量を調整可能な第１の給電部の一例である火力発電設備３と、給電量を調整不能な第２の給電部の一例である太陽光発電設備４と、充電ステーション５と、電気自動車６と、電力制御装置７とを備えている。電力管理システム１は、電力消費装置２、火力発電設備３、太陽光発電設備４及び電気自動車６に対する電気の流れを制御する。なお、電力管理システム１を構成する電力消費装置２、火力発電設備３、太陽光発電設備４、充電ステーション５及び電気自動車６の数は、図１で示す数に限られない。 The power management system 1 includes a power consumption device 2, a thermal power generation facility 3 which is an example of a first power supply unit whose power supply amount can be adjusted, and solar power which is an example of a second power supply unit whose power supply amount cannot be adjusted. It includes a power generation facility 4, a charging station 5, an electric vehicle 6, and a power control device 7. The power management system 1 controls the flow of electricity to the power consumption device 2, the thermal power generation facility 3, the photovoltaic power generation facility 4, and the electric vehicle 6. The number of the power consumption device 2, the thermal power generation facility 3, the photovoltaic power generation facility 4, the charging station 5, and the electric vehicle 6 constituting the power management system 1 is not limited to the number shown in FIG.

電力消費装置２は、電力制御装置７から供給される電力を消費する。電力消費装置２としては、工場や家庭に配置された電子機器、照明等が例示できる。 The power consuming device 2 consumes the power supplied from the power control device 7. Examples of the power consuming device 2 include electronic devices, lighting, and the like arranged in factories and homes.

火力発電設備３は、電力制御装置７からの制御信号を受信する。そして、火力発電設備３は、この制御信号に基づいて、燃料の量を調整することで、電力制御装置７に対する給電量を任意に調整する。この給電量の下限値は、一旦、燃焼を終了してしまうと需要量の増加に対応する際に長時間を要することから、火力を最小限に抑制したときの給電量（以下、「最小給電量」という）に設定されている。 The thermal power generation facility 3 receives a control signal from the power control device 7. Then, the thermal power generation facility 3 arbitrarily adjusts the amount of power supplied to the power control device 7 by adjusting the amount of fuel based on this control signal. The lower limit of this power supply amount is the power supply amount when the thermal power is minimized (hereinafter, "minimum power supply amount") because it takes a long time to respond to the increase in demand once combustion is completed. It is set to "amount").

太陽光発電設備４は、太陽光の強さに応じた量の電力を電力制御装置７に給電する。 The photovoltaic power generation facility 4 supplies electric power to the power control device 7 in an amount corresponding to the intensity of sunlight.

充電ステーション５は、電気自動車６のケーブル６１が接続される図示しない複数の電源コンセントを備えている。本実施の形態では、充電ステーション５が工場に配置されている場合を例示するが、家庭等他の場所に配置されていてもよい。 The charging station 5 includes a plurality of power outlets (not shown) to which the cable 61 of the electric vehicle 6 is connected. In the present embodiment, the case where the charging station 5 is arranged in the factory is illustrated, but it may be arranged in another place such as a home.

電気自動車６は、ケーブル６１と、バッテリ６２と、通信部６３と、バッテリ管理部６４と、走行履歴蓄積部６５と、必要電力量推定部６６と、放電可能量算出部６７とを備えている。 The electric vehicle 6 includes a cable 61, a battery 62, a communication unit 63, a battery management unit 64, a traveling history storage unit 65, a required electric energy estimation unit 66, and a dischargeable amount calculation unit 67. ..

ケーブル６１は、信号を送る図示しない信号線と、電力を送る図示しない電力線と、を備えている。 The cable 61 includes a signal line (not shown) for sending a signal and a power line (not shown) for sending power.

通信部６３は、ケーブル６１の信号線を介して電力制御装置７との間で信号の送受信を行う。 The communication unit 63 transmits / receives a signal to / from the power control device 7 via the signal line of the cable 61.

バッテリ管理部６４は、ケーブル６１の電力線を介して、バッテリ６２と電力制御装置７との間の電気の流れを管理する。バッテリ管理部６４は、通信部６３からバッテリ６２の残量の確認要求信号を受信すると、バッテリ６２の残量確認結果の信号を通信部６３に送信する。 The battery management unit 64 manages the flow of electricity between the battery 62 and the power control device 7 via the power line of the cable 61. When the battery management unit 64 receives the confirmation request signal for the remaining amount of the battery 62 from the communication unit 63, the battery management unit 64 transmits the signal of the remaining amount confirmation result of the battery 62 to the communication unit 63.

走行履歴蓄積部６５は、電気自動車６の走行履歴を蓄積する。走行履歴の蓄積方法としては、周知の方法を用いることができる。この蓄積する走行履歴としては、走行日時及び曜日、出発地、経由地、目的地、走行経路中の坂の有無、走行速度、加速や減速の状態等が例示できるが、これらに限られない。 The travel history storage unit 65 accumulates the travel history of the electric vehicle 6. A well-known method can be used as a method of accumulating the traveling history. Examples of the accumulated travel history include, but are not limited to, the travel date and time, the day of the week, the departure point, the waypoint, the destination, the presence or absence of a slope in the travel route, the travel speed, the state of acceleration or deceleration, and the like.

必要電力量推定部６６は、バッテリ６２の放電可能量の確認要求信号を受信すると、走行履歴蓄積部６５に蓄積された走行履歴に基づいて、所定距離の走行に必要な必要電力量を推定する。例えば、必要電力量推定部６６は、平日の昼間において、通信部６３から必要電力量推定要求の信号を受信すると、その日の退勤時の職場、例えば工場から家までの走行距離と、次の日の出勤時の家から工場までの走行距離とを算出する。さらに、必要電力量推定部６６は、電気自動車６の電費を算出する。この算出のときに、走行経路中の坂の有無、走行速度、加速や減速の状態等の電費に影響を与えるファクターを考慮に入れることが好ましい。そして、必要電力量推定部６６は、工場から家までの往復距離と、この往復時の電費とに基づいて、往復に必要な必要電力量を推定する。 When the required electric energy estimation unit 66 receives the confirmation request signal for the dischargeable amount of the battery 62, the required electric energy estimation unit 66 estimates the required electric energy required for traveling a predetermined distance based on the travel history accumulated in the travel history storage unit 65. .. For example, when the required electric energy estimation unit 66 receives the signal of the required electric energy estimation request from the communication unit 63 in the daytime on weekdays, the mileage from the workplace, for example, the factory to the house at the time of leaving work on that day, and the next day Calculate the mileage from your home to the factory when you go to work. Further, the required electric energy estimation unit 66 calculates the electric cost of the electric vehicle 6. In this calculation, it is preferable to take into consideration factors that affect the electricity cost, such as the presence or absence of a slope in the traveling route, the traveling speed, and the state of acceleration or deceleration. Then, the required electric energy estimation unit 66 estimates the required electric energy for the round trip based on the round-trip distance from the factory to the house and the electric cost at the time of the round trip.

放電可能量算出部６７は、バッテリ６２の放電後の残量が必要電力量以上となるような放電可能量を算出し、この放電可能量の信号を通信部６３に送信する。放電可能量は、バッテリ６２の残量から、必要電力量推定部６６で推定した必要電力量のみを減じた量であってもよいし、この減じて得られた量からさらに所定量を減じた量であってもよい。 The dischargeable amount calculation unit 67 calculates the dischargeable amount so that the remaining amount of the battery 62 after discharge becomes equal to or more than the required electric energy amount, and transmits a signal of this dischargeable amount to the communication unit 63. The dischargeable amount may be an amount obtained by subtracting only the required power amount estimated by the required power amount estimation unit 66 from the remaining amount of the battery 62, or a predetermined amount is further subtracted from the amount obtained by subtracting the required power amount. It may be a quantity.

電力制御装置７は、蓄電部７１と、需要量認識部７２と、給電量認識部７３と、制御部７４とを備えている。なお、需要量認識部７２と、給電量認識部７３と、制御部７４と、必要電力量推定部６６と、放電可能量算出部６７とは、本開示の電力管理装置１０を構成している。 The power control device 7 includes a power storage unit 71, a demand amount recognition unit 72, a power supply amount recognition unit 73, and a control unit 74. The demand amount recognition unit 72, the power supply amount recognition unit 73, the control unit 74, the required power amount estimation unit 66, and the dischargeable amount calculation unit 67 constitute the power management device 10 of the present disclosure. ..

蓄電部７１は、火力発電設備３及び太陽光発電設備４から給電される電力を蓄電する。 The power storage unit 71 stores the electric power supplied from the thermal power generation facility 3 and the solar power generation facility 4.

需要量認識部７２は、電力消費装置２の電力の需要量を認識する。需要量の認識方法としては、周知の方法を用いることができる。 The demand amount recognition unit 72 recognizes the power demand amount of the power consumption device 2. A well-known method can be used as a method for recognizing the amount of demand.

給電量認識部７３は、蓄電部７１の蓄電状態に基づいて、火力発電設備３及び太陽光発電設備４のそれぞれの給電量を認識する。 The power supply amount recognition unit 73 recognizes the power supply amount of each of the thermal power generation facility 3 and the solar power generation facility 4 based on the power storage state of the power storage unit 71.

制御部７４は、需要量認識部７２で認識した電力消費装置２の需要量と、給電量認識部７３で認識した給電量と、電気自動車６のバッテリ６２の蓄電量とに基づいて、電気の流れを制御する。 The control unit 74 is based on the demand amount of the power consumption device 2 recognized by the demand amount recognition unit 72, the power supply amount recognized by the power supply amount recognition unit 73, and the electricity storage amount of the battery 62 of the electric vehicle 6. Control the flow.

［電力管理システムを用いた電力管理方法］
次に、電力管理システム１を用いた電力管理方法について説明する。なお、本実施の形態では、少なくとも１台の電気自動車６が充電ステーション５に接続されていることを前提にして、説明を行う。充電ステーション５に電気自動車６が１台も接続されていない場合、電力管理システム１は、一部が以下の説明とは異なる処理を行うが、ここでは、その説明を省略する。図２及び図３は、電力管理方法のフローチャートである。 [Power management method using power management system]
Next, a power management method using the power management system 1 will be described. In the present embodiment, the description will be made on the premise that at least one electric vehicle 6 is connected to the charging station 5. When no electric vehicle 6 is connected to the charging station 5, the power management system 1 performs some processing different from the following description, but the description thereof will be omitted here. 2 and 3 are flowcharts of the power management method.

まず、需要量認識部７２は、図２に示すように、電力消費装置２の電力の需要量Ａを認識する（Ｓ１）。次に、給電量認識部７３は、太陽光発電設備４の実際の給電量Ｂを認識する（Ｓ２）。この後、制御部７４は、太陽光発電設備４の給電量Ｂと、火力発電設備３の最小給電量Ｃとの第１の合計給電量Ｘ１が、需要量Ａを超えているか否かを判定する（Ｓ３）。つまり、火力発電設備３の給電量を最小給電量Ｃまで低くしても、火力発電設備３及び太陽光発電設備４の給電量の和が、需要量Ａを超えてしまうか否かを判定する。 First, as shown in FIG. 2, the demand amount recognition unit 72 recognizes the power demand amount A of the power consumption device 2 (S1). Next, the power supply amount recognition unit 73 recognizes the actual power supply amount B of the photovoltaic power generation facility 4 (S2). After that, the control unit 74 determines whether or not the first total power supply amount X1 of the power supply amount B of the photovoltaic power generation facility 4 and the minimum power supply amount C of the thermal power generation facility 3 exceeds the demand amount A. (S3). That is, even if the power supply amount of the thermal power generation facility 3 is lowered to the minimum power supply amount C, it is determined whether or not the sum of the power supply amounts of the thermal power generation facility 3 and the solar power generation facility 4 exceeds the demand amount A. ..

制御部７４は、第１の合計給電量Ｘ１が需要量Ａを超えていると判定した場合（Ｓ３：ＹＥＳ）、この超えた分の電力量を余剰量Ｄとして算出する（Ｓ４）。第１の合計給電量Ｘ１が需要量Ａを超えるのは、晴れの日である。また、制御部７４は、充電ステーション５に接続された全ての電気自動車６のバッテリ残量を確認する（Ｓ５）。このとき、制御部７４は、充電ステーション５を介して、バッテリ６２の残量確認要求の信号を各電気自動車６に送信する。残量確認要求の信号を受信した各電気自動車６のバッテリ管理部６４は、バッテリ６２の残量確認結果の信号を、充電ステーション５を介して制御部７４に送信する。 When the control unit 74 determines that the first total power supply amount X1 exceeds the demand amount A (S3: YES), the control unit 74 calculates the excess power amount as the surplus amount D (S4). It is a sunny day that the first total power supply amount X1 exceeds the demand amount A. Further, the control unit 74 confirms the remaining battery levels of all the electric vehicles 6 connected to the charging station 5 (S5). At this time, the control unit 74 transmits a signal for confirming the remaining amount of the battery 62 to each electric vehicle 6 via the charging station 5. Upon receiving the signal of the remaining amount confirmation request, the battery management unit 64 of each electric vehicle 6 transmits the signal of the remaining amount confirmation result of the battery 62 to the control unit 74 via the charging station 5.

この後、制御部７４は、バッテリ６２の残量が所定量以下の全ての電気自動車６を、余剰量Ｄの電力を用いた充電対象の電気自動車６として選出する（Ｓ６）。次に、制御部７４は、火力発電設備３に信号を送信して、火力発電設備３の給電量を最小給電量に調整する（Ｓ７）。この火力発電設備３の給電量の調整後、制御部７４は、需要量Ａの電力を電力消費装置２に供給するとともに、余剰量Ｄの電力を充電対象の電気自動車６に充電する（Ｓ８）。なお、各電気自動車６の充電量は、全ての電気自動車６で同じにしてもよいし、充電後の残量が全ての電気自動車６で同じになるように調整してもよい。そして、Ｓ１に戻る。 After that, the control unit 74 selects all the electric vehicles 6 in which the remaining amount of the battery 62 is equal to or less than a predetermined amount as the electric vehicles 6 to be charged using the surplus amount D of electric power (S6). Next, the control unit 74 transmits a signal to the thermal power generation facility 3 to adjust the power supply amount of the thermal power generation facility 3 to the minimum power supply amount (S7). After adjusting the power supply amount of the thermal power generation facility 3, the control unit 74 supplies the power of the demand amount A to the power consumption device 2 and charges the power of the surplus amount D to the electric vehicle 6 to be charged (S8). .. The charge amount of each electric vehicle 6 may be the same for all the electric vehicles 6, or may be adjusted so that the remaining amount after charging is the same for all the electric vehicles 6. Then, it returns to S1.

一方、制御部７４は、第１の合計給電量Ｘ１が需要量Ａを超えていないと判定した場合（Ｓ３：ＮＯ）、第１の合計給電量Ｘ１が需要量Ａと等しいか否かを判定する（Ｓ９）。制御部７４は、第１の合計給電量Ｘ１が需要量Ａと等しいと判定した場合（Ｓ９：ＹＥＳ）、Ｓ７の処理と同様に、火力発電設備３の給電量を最小給電量に調整する（Ｓ１０）。その後、制御部７４は、需要量Ａの電力を電力消費装置２に供給する（Ｓ１１）。そして、Ｓ１に戻る。 On the other hand, when the control unit 74 determines that the first total power supply amount X1 does not exceed the demand amount A (S3: NO), the control unit 74 determines whether or not the first total power supply amount X1 is equal to the demand amount A. (S9). When the control unit 74 determines that the first total power supply amount X1 is equal to the demand amount A (S9: YES), the control unit 74 adjusts the power supply amount of the thermal power generation facility 3 to the minimum power supply amount as in the process of S7 (S9: YES). S10). After that, the control unit 74 supplies the electric power of the demand amount A to the power consuming device 2 (S11). Then, it returns to S1.

一方、制御部７４は、第１の合計給電量Ｘ１が需要量Ａと等しくない、つまり第１の合計給電量Ｘ１が需要量Ａ未満であると判定した場合（Ｓ９：ＮＯ）、図３に示すように、充電ステーション５に接続された全ての電気自動車６の放電可能量を確認する（Ｓ１２）。第１の合計給電量Ｘ１が需要量Ａ未満になるのは、曇りや雨の日あるいは夕方や夜である。このとき、制御部７４は、充電ステーション５を介して、バッテリ６２の放電可能量の確認要求信号を各電気自動車６に送信する。放電可能量の確認要求信号を受信した各電気自動車６は、バッテリ６２の必要電力量に基づき放電可能量を算出し、その算出結果の信号を充電ステーション５を介して制御部７４に送信する。 On the other hand, when the control unit 74 determines that the first total power supply amount X1 is not equal to the demand amount A, that is, the first total power supply amount X1 is less than the demand amount A (S9: NO), FIG. As shown, the dischargeable amounts of all the electric vehicles 6 connected to the charging station 5 are confirmed (S12). The first total power supply amount X1 is less than the demand amount A on a cloudy or rainy day, or in the evening or at night. At this time, the control unit 74 transmits a confirmation request signal for the dischargeable amount of the battery 62 to each electric vehicle 6 via the charging station 5. Each electric vehicle 6 that has received the confirmation request signal for the dischargeable amount calculates the dischargeable amount based on the required electric energy of the battery 62, and transmits the calculated result signal to the control unit 74 via the charging station 5.

この後、制御部７４は、全ての電気自動車６の放電可能量の和を最大許容放電量Ｅとして算出する（Ｓ１３）。次に、制御部７４は、第１の合計給電量Ｘ１と最大許容放電量Ｅとの第２の合計給電量Ｘ２が、需要量Ａを超えているか否かを判定する（Ｓ１４）。 After that, the control unit 74 calculates the sum of the dischargeable amounts of all the electric vehicles 6 as the maximum allowable discharge amount E (S13). Next, the control unit 74 determines whether or not the second total power supply amount X2 of the first total power supply amount X1 and the maximum allowable discharge amount E exceeds the demand amount A (S14).

制御部７４は、第２の合計給電量Ｘ２が需要量Ａを超えていると判定した場合（Ｓ１４：ＹＥＳ）、第２の合計給電量Ｘ２が需要量Ａと等しくなるように、各電気自動車６の調整放電量を算出する（Ｓ１５）。Ｓ１５の処理を行う場合、全ての電気自動車６から放電可能量の電力を放電させなくても、需要量Ａの電力を確保できる。このため、少なくとも１台の電気自動車６の調整放電量は、放電可能量未満となるように、つまり放電後のバッテリ６２の残量が必要電力量を超えるように算出される。なお、各電気自動車６の調整放電量は、全ての電気自動車６で同じにしてもよいし、異なるようにしてもよい。また、全ての電気自動車６から放電させなくても需要量Ａの電力を確保できる場合には、少なくとも１台の電気自動車６の調整放電量を０に設定してもよい。 When the control unit 74 determines that the second total power supply amount X2 exceeds the demand amount A (S14: YES), each electric vehicle so that the second total power supply amount X2 becomes equal to the demand amount A. The adjusted discharge amount of 6 is calculated (S15). When the processing of S15 is performed, the power of the demand amount A can be secured without discharging the power of the dischargeable amount from all the electric vehicles 6. Therefore, the adjusted discharge amount of at least one electric vehicle 6 is calculated so as to be less than the dischargeable amount, that is, the remaining amount of the battery 62 after discharge exceeds the required electric energy amount. The adjusted discharge amount of each electric vehicle 6 may be the same or different for all the electric vehicles 6. Further, if the electric power of the demand amount A can be secured without discharging from all the electric vehicles 6, the adjusted discharge amount of at least one electric vehicle 6 may be set to 0.

制御部７４は、各電気自動車６に調整放電量の放電を要求する（Ｓ１６）。放電の要求を受けた各電気自動車６のバッテリ管理部６４は、調整放電量の電力をバッテリ６２から放電し、電力制御装置７に供給する。制御部７４は、各電気自動車６で放電された電力の供給を受けると、Ｓ１０及びＳ１１の処理を行い、Ｓ１に戻る。なお、Ｓ１６の処理後にＳ１１の処理を行う場合、電力制御装置７は、火力発電設備３と電気自動車６から供給された電力を電力消費装置２に供給する。また、制御部７４は、太陽光発電設備４から電力の供給を受けている場合、この太陽光発電設備４から供給された電力も、電力消費装置２に供給する。 The control unit 74 requests each electric vehicle 6 to discharge an adjusted discharge amount (S16). Upon receiving the discharge request, the battery management unit 64 of each electric vehicle 6 discharges the adjusted discharge amount of power from the battery 62 and supplies it to the power control device 7. When the control unit 74 receives the electric power discharged from each electric vehicle 6, the control unit 74 processes S10 and S11 and returns to S1. When the processing of S11 is performed after the processing of S16, the power control device 7 supplies the electric power supplied from the thermal power generation facility 3 and the electric vehicle 6 to the power consumption device 2. When the control unit 74 receives power from the photovoltaic power generation facility 4, the control unit 74 also supplies the power supplied from the photovoltaic power generation facility 4 to the power consumption device 2.

一方、制御部７４は、第２の合計給電量Ｘ２が需要量Ａを超えていないと判定した場合（Ｓ１４：ＮＯ）、第２の合計給電量Ｘ２が需要量Ａと等しいか否かを判定する（Ｓ１７）。制御部７４は、第２の合計給電量Ｘ２が需要量Ａと等しいと判定した場合（Ｓ１７：ＹＥＳ）、各電気自動車６に放電可能量の放電を要求する（Ｓ１８）。放電要求を受けた各電気自動車６のバッテリ管理部６４は、放電可能量の電力をバッテリ６２から放電し、電力制御装置７に供給する。制御部７４は、各電気自動車６で放電された電力の供給を受けると、Ｓ１０及びＳ１１の処理を行い、Ｓ１に戻る。なお、Ｓ１８の処理後にＳ１１の処理を行う場合、Ｓ１６の処理後にＳ１１の処理を行う場合と同様に、火力発電設備３、電気自動車６、太陽光発電設備４から供給された電力を供給する。 On the other hand, when the control unit 74 determines that the second total power supply amount X2 does not exceed the demand amount A (S14: NO), the control unit 74 determines whether or not the second total power supply amount X2 is equal to the demand amount A. (S17). When the control unit 74 determines that the second total power supply amount X2 is equal to the demand amount A (S17: YES), the control unit 74 requests each electric vehicle 6 to discharge a dischargeable amount (S18). The battery management unit 64 of each electric vehicle 6 that receives the discharge request discharges a dischargeable amount of electric power from the battery 62 and supplies it to the electric power control device 7. When the control unit 74 receives the electric power discharged from each electric vehicle 6, the control unit 74 processes S10 and S11 and returns to S1. When the processing of S11 is performed after the processing of S18, the power supplied from the thermal power generation facility 3, the electric vehicle 6, and the photovoltaic power generation facility 4 is supplied in the same manner as in the case of performing the processing of S11 after the processing of S16.

制御部７４は、第２の合計給電量Ｘ２が需要量Ａと等しくない、つまり第２の合計給電量Ｘ２が需要量Ａ未満であると判定した場合（Ｓ１７：ＮＯ）、Ｓ１８の処理と同様に、各電気自動車６に放電可能量の放電を要求する（Ｓ１９）。また、制御部７４は、火力発電設備３に信号を送信して、第２の合計給電量Ｘ２が需要量Ａと等しくなるように、火力発電設備３の給電量を増やす（Ｓ２０）。この火力発電設備３の給電量の調整後、制御部７４は、Ｓ１１の処理を行い、Ｓ１に戻る。なお、Ｓ１９の処理後にＳ１１の処理を行う場合、Ｓ１６の処理後にＳ１１の処理を行う場合と同様に、火力発電設備３、電気自動車６、太陽光発電設備４から供給された電力を供給する。 When the control unit 74 determines that the second total power supply amount X2 is not equal to the demand amount A, that is, the second total power supply amount X2 is less than the demand amount A (S17: NO), the process is the same as in S18. In addition, each electric vehicle 6 is required to discharge a dischargeable amount (S19). Further, the control unit 74 transmits a signal to the thermal power generation facility 3 to increase the power supply amount of the thermal power generation facility 3 so that the second total power supply amount X2 becomes equal to the demand amount A (S20). After adjusting the power supply amount of the thermal power generation facility 3, the control unit 74 performs the process of S11 and returns to S1. When the processing of S11 is performed after the processing of S19, the power supplied from the thermal power generation facility 3, the electric vehicle 6, and the photovoltaic power generation facility 4 is supplied in the same manner as in the case of performing the processing of S11 after the processing of S16.

［実施の形態の作用効果］
電力管理システム１は、太陽光発電設備４の給電量が多すぎるために、第１の合計給電量Ｘ１が需要量Ａを超えてしまう場合、余剰量Ｄの電力を充電対象の電気自動車６に充電する。このため、余剰量Ｄの電力を有効活用できる。一方、電力管理システム１は、太陽光発電設備４の給電量が少なすぎるために、第１の合計給電量Ｘ１が需要量Ａ未満となってしまう場合、この需要量Ａに対する不足量を電気自動車６から放電された電力でまかなう。このため、不足量をまかなうために、火力発電設備３の給電量を必要以上に増やす必要がなく、火力発電設備３の稼働コストの増加を抑制できる上、環境負荷の増加も抑制できる。さらに、電力管理システム１は、走行履歴に基づいて、所定距離の走行に必要な必要電力量を推定し、この必要電力量の電力がバッテリ６２に残るように電気自動車６に放電させる。このため、放電後に電気自動車６を利用する場合、バッテリ６２の残量が足りなくて、目的地までたどり着けないという不具合を抑制できる。また、運転手が利用前に充電を行う必要がないため、出発が遅れてしまうこともない。したがって、電気自動車６の利用に影響を及ぼすことなく、需要に応じた電力の発生と供給を適切に制御できる電力管理システム１を提供できる。 [Action and effect of the embodiment]
In the power management system 1, when the first total power supply amount X1 exceeds the demand amount A because the power supply amount of the photovoltaic power generation facility 4 is too large, the surplus amount D of the electric power is supplied to the electric vehicle 6 to be charged. Charge. Therefore, the surplus amount D of electric power can be effectively utilized. On the other hand, in the power management system 1, when the power supply amount of the photovoltaic power generation facility 4 is too small and the first total power supply amount X1 becomes less than the demand amount A, the shortage amount for the demand amount A is used as the electric vehicle. It is covered by the power discharged from 6. Therefore, in order to cover the shortage, it is not necessary to increase the power supply amount of the thermal power generation facility 3 more than necessary, and it is possible to suppress an increase in the operating cost of the thermal power generation facility 3 and also suppress an increase in the environmental load. Further, the electric power management system 1 estimates the required electric power required for traveling a predetermined distance based on the traveling history, and discharges the electric vehicle 6 so that the required electric power remains in the battery 62. Therefore, when the electric vehicle 6 is used after discharging, it is possible to suppress a problem that the remaining amount of the battery 62 is insufficient and the destination cannot be reached. In addition, since the driver does not need to charge the battery before use, the departure will not be delayed. Therefore, it is possible to provide the electric power management system 1 capable of appropriately controlling the generation and supply of electric power according to the demand without affecting the use of the electric vehicle 6.

電力管理システム１は、充電ステーション５が配置された工場から家までの往復に必要な電力量を必要電力量として推定する。このため、目的地である家に充電設備が配置されていない場合でも、工場から家までの往復走行が可能となる。 The power management system 1 estimates the amount of power required for the round trip from the factory where the charging station 5 is located to the house as the required power amount. Therefore, even if the charging equipment is not installed in the destination house, the round trip from the factory to the house is possible.

電力管理システム１は、必要電力量の推定時に、走行履歴に基づき電費を推定する。電費に影響を与えるファクターとしては、走行経路中の坂の有無、走行速度、加速や減速の状態等が挙げられるが、これらのファクターは、運転手や走行経路や車種等によって異なる。本実施の形態では、これらの運転手等によって異なるファクターを考慮に入れて電費を推定することによって、電気自動車６毎にバッテリ６２から適切な電力量を放電できる。 The power management system 1 estimates the power cost based on the traveling history when estimating the required power amount. Factors that affect the electricity cost include the presence or absence of a slope in the driving route, the traveling speed, the state of acceleration and deceleration, and the like, but these factors differ depending on the driver, the traveling route, the vehicle type, and the like. In the present embodiment, an appropriate amount of electric power can be discharged from the battery 62 for each electric vehicle 6 by estimating the electric power cost in consideration of factors different depending on these drivers and the like.

電力管理システム１は、太陽光発電設備４の給電量Ｂと火力発電設備３の最小給電量Ｃとの和を、第１の合計給電量Ｘ１として算出し、この第１の合計給電量Ｘ１が需要量Ａを超える場合、最小給電量Ｃの電力を給電するように火力発電設備３を制御する。そして、電力管理システム１は、需要量Ａの電力を電力消費装置２に供給するとともに、余剰量Ｄの電力を充電対象の電気自動車６に充電する。このように、火力発電設備３の給電量を最小給電量Ｃに制御することによって、火力発電設備３の稼働コストと環境負荷を最小限に抑制できる。 The power management system 1 calculates the sum of the power supply amount B of the photovoltaic power generation facility 4 and the minimum power supply amount C of the thermal power generation facility 3 as the first total power supply amount X1, and the first total power supply amount X1 is When the demand amount A is exceeded, the thermal power generation facility 3 is controlled so as to supply the electric power of the minimum power supply amount C. Then, the power management system 1 supplies the power of the demand amount A to the power consumption device 2, and charges the power of the surplus amount D to the electric vehicle 6 to be charged. By controlling the power supply amount of the thermal power generation facility 3 to the minimum power supply amount C in this way, the operating cost and environmental load of the thermal power generation facility 3 can be minimized.

電力管理システム１は、第１の合計給電量Ｘ１が需要量Ａ未満であり、かつ、第２の合計給電量Ｘ２が需要量Ａを超える場合、第２の合計給電量Ｘ２が需要量Ａと等しくなるような調整放電量を算出する。そして、電力管理システム１は、各電気自動車６から調整放電量の電力を放電させるとともに、最小給電量Ｃの電力を給電するように火力発電設備３を制御し、需要量Ａの電力を電力消費装置２に供給する。このように、火力発電設備３の給電量を最小給電量Ｃに制御することによって、火力発電設備３の稼働コストと環境負荷を最小限に抑制できる。また、第２の合計給電量Ｘ２が需要量Ａと等しくなるように、各電気自動車６から放電量を調整するため、電気自動車６からの無駄な放電をなくすことができる。 In the power management system 1, when the first total power supply amount X1 is less than the demand amount A and the second total power supply amount X2 exceeds the demand amount A, the second total power supply amount X2 is the demand amount A. Calculate the adjusted discharge amount so that they are equal. Then, the power management system 1 discharges the adjusted discharge amount of electric power from each electric vehicle 6, controls the thermal power generation facility 3 so as to supply the electric power of the minimum power supply amount C, and consumes the electric power of the demand amount A. Supply to device 2. By controlling the power supply amount of the thermal power generation facility 3 to the minimum power supply amount C in this way, the operating cost and environmental load of the thermal power generation facility 3 can be minimized. Further, since the discharge amount is adjusted from each electric vehicle 6 so that the second total power supply amount X2 becomes equal to the demand amount A, unnecessary discharge from the electric vehicle 6 can be eliminated.

電力管理システム１は、第１の合計給電量Ｘ１が需要量Ａ未満であり、かつ、第２の合計給電量Ｘ２が需要量Ａ未満の場合、全ての電気自動車６の放電量から放電可能量の電力を放電させる。つまり、電気自動車６からの放電量の総和が最大許容放電量Ｅとなるように、電気自動車６から放電させる。また、電力管理システム１は、第２の合計給電量Ｘ２が需要量Ａと同じになるように、火力発電設備３の給電量を制御し、需要量Ａの電力を電力消費装置２に供給する。このように、電気自動車６から最大許容放電量Ｅの電力の供給を受けることで、火力発電設備３の給電量の増加を最小限に抑制できる。 In the power management system 1, when the first total power supply amount X1 is less than the demand amount A and the second total power supply amount X2 is less than the demand amount A, the dischargeable amount from the discharge amount of all the electric vehicles 6 Discharge the power of. That is, the electric vehicle 6 is discharged so that the total amount of discharges from the electric vehicle 6 is the maximum allowable discharge amount E. Further, the power management system 1 controls the power supply amount of the thermal power generation facility 3 so that the second total power supply amount X2 is the same as the demand amount A, and supplies the power of the demand amount A to the power consumption device 2. .. In this way, by receiving the power supply of the maximum allowable discharge amount E from the electric vehicle 6, it is possible to minimize the increase in the power supply amount of the thermal power generation facility 3.

電力管理装置１０を構成する必要電力量推定部６６及び放電可能量算出部６７を、電気自動車６に配置している。このため、電力制御装置７において、電気自動車６毎の必要電力量の推定処理や、放電可能量の算出処理を行う必要がなく、電力管理システム１を構成する電気自動車６の台数が多くても、電力制御装置７の処理負荷の増加を抑制できる。 The required electric energy estimation unit 66 and the dischargeable amount calculation unit 67 that constitute the electric power management device 10 are arranged in the electric vehicle 6. Therefore, in the power control device 7, it is not necessary to perform estimation processing of the required electric energy for each electric vehicle 6 and calculation processing of the dischargeable amount, and even if the number of electric vehicles 6 constituting the electric power management system 1 is large. , It is possible to suppress an increase in the processing load of the power control device 7.

［実施の形態の変形例］
本開示は、これまでに説明した実施の形態に示されたものに限られないことは言うまでも無く、その趣旨を逸脱しない範囲内で、種々の変形を加えることができる。 [Modified example of the embodiment]
Needless to say, the present disclosure is not limited to that shown in the embodiments described above, and various modifications can be made without departing from the spirit of the present disclosure.

例えば、本開示の第１の給電部としては、火力発電設備３に限定されず、水力発電設備、原子力発電設備及び燃料電池のうち少なくともいずれか１つであってもよい。本開示の第２の給電部としては、太陽光発電設備４に限定されず、風力発電設備、波力発電設備、太陽熱発電設備及び地熱発電設備のうち少なくともいずれか１つであってもよい。 For example, the first power feeding unit of the present disclosure is not limited to the thermal power generation facility 3, and may be at least one of a hydroelectric power generation facility, a nuclear power generation facility, and a fuel cell. The second power feeding unit of the present disclosure is not limited to the photovoltaic power generation facility 4, and may be at least one of a wind power generation facility, a wave power generation facility, a solar thermal power generation facility, and a geothermal power generation facility.

必要電力量は、工場から家までの片道の走行に必要な電力量であってもよいし、出発地から目的地を経由して出発地以外の地点までの走行に必要な電力量であってもよいし、片道又は往復を選択できるようにしてもよい。また、走行履歴に基づき推定される経由地への走行距離を含めて、必要電力量を推定してもよい。さらに、走行履歴に基づいて、所定の曜日や時刻や天気の日に、他の曜日や時刻や天気の日とは違う経路を走行することを把握できる場合には、この経路に基づき必要電力量を推定してもよい。また、休日の前日に放電を行う場合には、工場と家との往復距離に加えて、走行履歴に基づき推定される休日の走行距離を考慮に入れて、必要電力量を推定してもよい。また、走行履歴に、カーナビゲーション装置、カーオーディオ装置、空調装置、ヘッドランプやテールランプあるいはウインカーの使用状況を含め、これらの使用状況を考慮に入れて、必要電力量を推定してもよい。さらに、退勤予定時刻や出勤予定時刻を運転手に設定させ、この設定時刻に基づいて、必要電力量を推定してもよい。 The required electric energy may be the electric energy required for one-way traveling from the factory to the house, or the electric energy required for traveling from the starting point to a point other than the starting point via the destination. It may be possible to select one-way or round-trip. Further, the required electric energy may be estimated including the mileage to the waypoint estimated based on the traveling history. Furthermore, if it is possible to know that the vehicle will travel on a route different from other days of the week, time, or weather on a predetermined day, time, or weather day based on the travel history, the amount of power required based on this route. May be estimated. Further, when discharging is performed on the day before the holiday, the required electric energy may be estimated by taking into consideration the mileage of the holiday estimated based on the mileage in addition to the round-trip distance between the factory and the house. .. In addition, the required electric energy may be estimated in consideration of the usage status of the car navigation device, the car audio device, the air conditioner, the head lamp, the tail lamp, or the blinker in the travel history. Further, the driver may be allowed to set the scheduled time to leave work or the scheduled time to go to work, and the required power amount may be estimated based on the set time.

必要電力量の推定に用いる電費として、走行履歴に含まれるファクターを考慮に入れずに、電気自動車６の車種や使用年数等に応じてあらかじめ設定された値を用いてもよい。 As the electric power cost used for estimating the required electric energy, a preset value may be used according to the vehicle type, the number of years of use, and the like of the electric vehicle 6 without taking into consideration the factors included in the traveling history.

第１の合計給電量Ｘ１として、太陽光発電設備４の実際の給電量Ｂと火力発電設備３の最小給電量Ｃとの和を用いたが、太陽光発電設備４の実際の給電量Ｂと火力発電設備３の実際の給電量との和を用いてもよい。このような構成でも、第１の合計給電量が需要量Ａ未満となってしまう場合、火力発電設備３の給電量を増やすことなく、需要量Ａに対する不足量を電気自動車６から放電された電力でまかなうことができる。 As the first total power supply amount X1, the sum of the actual power supply amount B of the photovoltaic power generation facility 4 and the minimum power supply amount C of the thermal power generation facility 3 was used, but the actual power supply amount B of the photovoltaic power generation facility 4 was used. The sum of the actual power supply amount of the thermal power generation facility 3 may be used. Even with such a configuration, when the first total power supply amount is less than the demand amount A, the electric power discharged from the electric vehicle 6 is insufficient for the demand amount A without increasing the power supply amount of the thermal power generation facility 3. Can be covered by electricity.

走行履歴蓄積部６５や必要電力量推定部６６や放電可能量算出部６７を、電気自動車６に配置せずに、電力制御装置７やサーバ装置に配置してもよい。この場合、走行履歴やバッテリ６２の残量に関する情報を、電気自動車６から電力制御装置７やサーバ装置に送信すればよい。 The traveling history storage unit 65, the required electric energy estimation unit 66, and the dischargeable amount calculation unit 67 may be arranged in the power control device 7 or the server device instead of being arranged in the electric vehicle 6. In this case, information on the traveling history and the remaining amount of the battery 62 may be transmitted from the electric vehicle 6 to the power control device 7 or the server device.

本開示の構成は、電力消費装置、給電量を調整可能な第１の給電部、給電量を調整不能な第２の給電部及び電気自動車に対する電気の流れを制御する電力管理装置及び電力管理システムに適用することができる。 The configuration of the present disclosure includes a power consumption device, a first power supply unit whose power supply amount can be adjusted, a second power supply unit whose power supply amount cannot be adjusted, and a power management device and a power management system for controlling the flow of electricity to an electric vehicle. Can be applied to.

１ 電力管理システム
２ 電力消費装置
３ 火力発電設備（第１の給電部）
４ 太陽光発電設備（第２の給電部）
５ 充電ステーション
６ 電気自動車
７ 電力制御装置
１０ 電力管理装置
６１ ケーブル
６２ バッテリ
６３ 通信部
６４ バッテリ管理部
６５ 走行履歴蓄積部
６６ 必要電力量推定部
６７ 放電可能量算出部
７１ 蓄電部
７２ 需要量認識部
７３ 給電量認識部
７４ 制御部 1 Power management system 2 Power consumption device 3 Thermal power generation equipment (first power supply unit)
4 Solar power generation equipment (second power supply unit)
5 Charging station 6 Electric vehicle 7 Power control device 10 Power management device 61 Cable 62 Battery 63 Communication unit 64 Battery management unit 65 Travel history storage unit 66 Required electric energy estimation unit 67 Dischargeable energy calculation unit 71 Storage unit 72 Demand amount recognition unit 73 Power supply amount recognition unit 74 Control unit

Claims (10)

電力消費装置、給電量を調整可能な第１の給電部、給電量を調整不能な第２の給電部及び電気自動車に対する電気の流れを制御する電力管理装置であって、
前記電力消費装置における電力の需要量を認識する需要量認識部と、
前記第１の給電部の給電量及び前記第２の給電部の給電量を認識する給電量認識部と、
前記電気自動車の走行履歴に基づいて、前記電気自動車の走行に必要な必要電力量を推定する必要電力量推定部と、
前記電気自動車のバッテリの放電後の残量が前記必要電力量以上となるような放電可能量を算出する放電可能量算出部と、
制御部と、を備え、
前記制御部は、
前記第１の給電部及び前記第２の給電部の第１の合計給電量が前記需要量を超える場合、前記需要量の電力を前記電力消費装置に供給するとともに、前記第１の合計給電量と前記需要量の差の電力を前記電気自動車のバッテリに充電し、
前記第１の合計給電量が前記需要量未満の場合、前記放電可能量に基づいて、前記電気自動車のバッテリを残量が前記必要電力量以上になるように放電させ、前記バッテリから放電された電力と前記第１の給電部及び前記第２の給電部が給電した電力とによって、前記需要量の電力を前記電力消費装置に供給する、
電力管理装置。 A power consumption device, a first power supply unit whose power supply amount can be adjusted, a second power supply unit whose power supply amount cannot be adjusted, and a power management device that controls the flow of electricity to an electric vehicle.
A demand amount recognition unit that recognizes the demand amount of electric power in the power consumption device,
A power supply amount recognition unit that recognizes the power supply amount of the first power supply unit and the power supply amount of the second power supply unit, and
A required electric energy estimation unit that estimates the required electric energy required for the electric vehicle to travel based on the traveling history of the electric vehicle.
A dischargeable amount calculation unit that calculates a dischargeable amount so that the remaining amount of the battery of the electric vehicle after discharge becomes equal to or more than the required electric energy amount.
With a control unit
The control unit
When the first total power supply amount of the first power supply unit and the second power supply unit exceeds the demand amount, the power of the demand amount is supplied to the power consumption device and the first total power supply amount is supplied. And the electric power of the difference between the demand amount is charged to the battery of the electric vehicle,
When the first total power supply amount is less than the demand amount, the battery of the electric vehicle is discharged so that the remaining amount becomes equal to or more than the required power amount based on the dischargeable amount, and the battery is discharged from the battery. The electric power and the electric power supplied by the first power supply unit and the second power supply unit supply the electric power of the required amount to the power consuming device.
Power management device. 前記必要電力量は、前記充電及び前記放電を行う１つの地点から目的地を経由して所定の地点までに必要な電力量である、
請求項１に記載の電力管理装置。 The required electric energy is the electric energy required from one point at which the charging and the discharging are performed to a predetermined point via the destination.
The power management device according to claim 1. 前記必要電力量推定部は、前記走行履歴に基づき前記電気自動車の電費を推定し、当該推定した電費に基づいて、前記必要電力量を推定する、
請求項１又は２に記載の電力管理装置。 The required electric energy estimation unit estimates the electric energy of the electric vehicle based on the traveling history, and estimates the required electric energy based on the estimated electric energy.
The power management device according to claim 1 or 2. 前記第１の合計給電量は、前記第１の給電部で調整可能な最小給電量と前記第２の給電部の実際の給電量との和であり、
前記制御部は、
前記第１の合計給電量が前記需要量を超える場合、前記最小給電量の電力を給電するように前記第１の給電部を制御してから、前記電力消費装置に対する前記需要量の電力の供給と前記バッテリへの充電とを行う、
請求項１から３のいずれかに記載の電力管理装置。 The first total power supply amount is the sum of the minimum power supply amount that can be adjusted by the first power supply unit and the actual power supply amount of the second power supply unit.
The control unit
When the first total power supply amount exceeds the demand amount, the first power supply unit is controlled so as to supply the power of the minimum power supply amount, and then the power supply of the demand amount to the power consumption device is performed. And charging the battery,
The power management device according to any one of claims 1 to 3. 前記第１の合計給電量は、前記第１の給電部で調整可能な最小給電量と前記第２の給電部の実際の給電量との和であり、
前記制御部は、
前記第１の合計給電量が前記需要量未満であり、かつ、前記第１の合計給電量及び前記放電可能量の第２の合計給電量が前記需要量を超える場合、前記最小給電量の電力を給電するように前記第１の給電部を制御するとともに、前記第２の合計給電量が前記需要量と同じになるように前記バッテリの放電量を制御しつつ、前記電力消費装置に対する前記需要量の電力の供給を行う、
請求項１から４のいずれかに記載の電力管理装置。 The first total power supply amount is the sum of the minimum power supply amount that can be adjusted by the first power supply unit and the actual power supply amount of the second power supply unit.
The control unit
When the first total power supply amount is less than the demand amount and the second total power supply amount of the first total power supply amount and the dischargeable amount exceeds the demand amount, the power of the minimum power supply amount. The demand for the power consuming device while controlling the first power supply unit so as to supply power and controlling the discharge amount of the battery so that the total power supply amount of the second power supply becomes the same as the demand amount. Supply a large amount of electricity,
The power management device according to any one of claims 1 to 4. 前記第１の合計給電量は、前記第１の給電部で調整可能な最小給電量と前記第２の給電部の実際の給電量との和であり、
前記制御部は、
前記第１の合計給電量が前記需要量未満であり、かつ、前記第１の合計給電量及び前記放電可能量の第２の合計給電量が前記需要量未満の場合、前記バッテリの放電量を前記放電可能量に制御するとともに、前記第２の合計給電量が前記需要量と同じになるように前記第１の給電部の給電量を制御しつつ、前記電力消費装置に対する前記需要量の電力の供給を行う、
請求項１から５のいずれかに記載の電力管理装置。 The first total power supply amount is the sum of the minimum power supply amount that can be adjusted by the first power supply unit and the actual power supply amount of the second power supply unit.
The control unit
When the first total power supply amount is less than the demand amount and the second total power supply amount of the first total power supply amount and the dischargeable amount is less than the demand amount, the discharge amount of the battery is determined. While controlling the dischargeable amount and controlling the power supply amount of the first power supply unit so that the second total power supply amount becomes the same as the demand amount, the power of the demand amount for the power consuming device. Supply,
The power management device according to any one of claims 1 to 5. 前記第２の給電部は、太陽光発電設備、風力発電設備、波力発電設備、太陽熱発電設備及び地熱発電設備のうち少なくともいずれか１つである、
請求項１から６のいずれかに記載の電力管理装置。 The second power feeding unit is at least one of a solar power generation facility, a wind power generation facility, a wave power generation facility, a solar thermal power generation facility, and a geothermal power generation facility.
The power management device according to any one of claims 1 to 6. 前記第１の給電部は、火力発電設備、水力発電設備、原子力発電設備及び燃料電池のうち少なくともいずれか１つである、
請求項１から７のいずれかに記載の電力管理装置。 The first power feeding unit is at least one of a thermal power generation facility, a hydroelectric power generation facility, a nuclear power generation facility, and a fuel cell.
The power management device according to any one of claims 1 to 7. 前記必要電力量推定部は、前記電気自動車に配置されている、
請求項１から８のいずれかに記載の電力管理装置。 The required electric energy estimation unit is arranged in the electric vehicle.
The power management device according to any one of claims 1 to 8. 電力消費装置と、
給電量を調整可能な第１の給電部と、
給電量を調整不能な第２の給電部と、
電気自動車と、
請求項１から９のいずれかに記載の電力管理装置と、を備える、
電力管理システム。 Power consuming device and
The first power supply unit that can adjust the power supply amount,
A second power supply unit whose power supply amount cannot be adjusted,
With an electric car
The power management device according to any one of claims 1 to 9 is provided.
Power management system.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102505182B1 (en) * 2022-08-31 2023-03-03 (주)원프랜트 Electric vehicle bi-directional charging and discharging system using pumped-storage hydroelectricity and photovoltaics
CN116923156A (en) * 2023-08-18 2023-10-24 安徽中科源起科技有限公司 Cloud platform-based intelligent monitoring system for safety of photovoltaic energy storage charging station

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102505182B1 (en) * 2022-08-31 2023-03-03 (주)원프랜트 Electric vehicle bi-directional charging and discharging system using pumped-storage hydroelectricity and photovoltaics
CN116923156A (en) * 2023-08-18 2023-10-24 安徽中科源起科技有限公司 Cloud platform-based intelligent monitoring system for safety of photovoltaic energy storage charging station
CN116923156B (en) * 2023-08-18 2024-02-06 安徽中科源起科技有限公司 Cloud platform-based intelligent monitoring system for safety of photovoltaic energy storage charging station

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