Power control system and electric device

• US 9,065,301 B2
• Filed: 08/30/2010
• Issued: 06/23/2015
• Est. Priority Date: 09/10/2009
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: Takayama, Hisashi, Usuki, Izumi, Takehara, Kiyotaka, Takamiya, Akiko
• Primary Examiner(s): Fennema, Robert
• Assistant Examiner(s): Whittington, Anthony
• Application Number:
  US13/395,200
• Publication Number:
  US 20120203387A1
• Time in Patent Office: 1,758 Days
• Field of Search: 700/291, 361/62, 702/61
• US Class Current: 1/1
• CPC Class Codes: H01M 10/441 for several batteries or cells simultaneously or sequentially
• CPC Class Codes: H01M 14/00 Electrochemical current or voltage generators not provided for in groups H01M6/00 - H01M12/00; Manufacture thereof
• CPC Class Codes: H01M 16/00 Structural combinations of different types of electrochemical generators
• CPC Class Codes: H02J 2300/20 The dispersed energy generation being of renewable origin
• CPC Class Codes: H02J 2300/24 of photovoltaic origin
• CPC Class Codes: H02J 2300/28 The renewable source being wind energy wind motors F03D
• CPC Class Codes: H02J 2310/14 The load or loads being home appliances
• CPC Class Codes: H02J 3/14 by switching loads on to, or off from, network, e.g. progressively balanced loading
• CPC Class Codes: H02J 3/381 Dispersed generators
• CPC Class Codes: H02J 7/34 Parallel operation in networks using both storage and other dc sources, e.g. providing buffering H02J7/14 takes precedence
• CPC Class Codes: H02J 7/35 with light sensitive cells
• CPC Class Codes: Y02B 10/10 Photovoltaic [PV]
• CPC Class Codes: Y02E 10/56 Power conversion systems, e.g. maximum power point trackers
• CPC Class Codes: Y02E 10/76 Power conversion electric or electronic aspects
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02P 90/50 Energy storage in industry with an added climate change mitigation effect

Abstract

A power control system controls electric devices so as to consume a power generated by a self-generated power facility using a natural energy, which is provided with a surplus power detection unit that detects the surplus portion of power generated by the self-generated power facility, and a device control unit that controls the operation of a plurality of electric devices. When the surplus power detection unit detects the surplus power, the device control unit controls one or more of a plurality of electric devices to perform predetermined operations so as to consume the surplus power.

Claims

1. A power control system configured to control electric appliances to consume a power generated by a self-generated electrical power facility using a natural energy, comprising:

a surplus power detection unit for detecting a surplus power generated by the self-generated electrical power facility; and

an appliance control unit for controlling operations of the electric appliances,

wherein the appliance control unit performs a control such that when the surplus power detection unit detects the surplus power, one or more of the electric appliances respectively execute predetermined operations and consume the surplus power,

wherein the power control system further comprises a surplus power prediction unit for predicting a time at which the surplus power is generated and an amount of the surplus power, based on an amount of a power generated by the self-generated electrical power facility and a demand for the power, and

wherein the appliance control unit activates said one or more of the electric appliances according to a time taken to activate each of said one or more of the electric appliances based on the time at which the surplus power is generated and the amount of the surplus power predicted by the surplus power prediction unit.

2. The power control system of claim 1, wherein the electric appliances include one or more chargeable electric appliances, each having a secondary cell as a power source, and, when the surplus power detection unit detects the surplus power, the appliance control unit performs a control such that the surplus power is supplied to the chargeable electric appliances and each of the chargeable electric appliances executes a charging operation.

3. The power control system of claim 1, further comprising an appliance information storage unit for storing information on predetermined operations that are executed by electric appliances in power usage candidates for the surplus power,

wherein, when the surplus power detection unit detects the surplus power, the appliance control unit performs a control such that a combination of electric appliances which efficiently consumes the surplus power is selected among the power usage candidates on the basis of the information on the predetermined operations stored in the appliance information storage unit, and the selected electric appliances consume the surplus power by executing the respective predetermined operations.

4. The power control system of claim 3,

wherein the appliance information storage unit stores information on times taken to activate the electric appliances in the power usage candidates for the surplus power, together with the information on the predetermined operations, and

wherein the appliance control unit selects a combination of electric appliances which efficiently consume the surplus power among the power usage candidates, based on the amount of the surplus power predicted by the surplus power prediction unit, the information on the predetermined operations stored in the appliance information storage unit, and the information on the times taken to activate the electric appliances, thus activating the selected electric appliances according to a time taken to activate each of the selected electric appliances before the surplus power generation time predicted by the surplus power prediction unit, and enables the surplus power to be supplied to the selected electric appliances when the surplus power detection unit detects the surplus power to allow the electric appliances to execute the predetermined operations.

5. The power control system of claim 2, further comprising an appliance information storage unit for storing information on predetermined operations that are executed by electric appliances in power usage candidates for the surplus power,

wherein, when the surplus power detection unit detects the surplus power, the appliance control unit performs a control such that a combination of electric appliances which efficiently consumes the surplus power is selected among the power usage candidates on the basis of the information on the predetermined operations stored in the appliance information storage unit, and the selected electric appliances consume the surplus power by executing the respective predetermined operations.

6. The power control system of claim 5,

wherein the appliance information storage unit stores information on times taken to activate the electric appliances in the power usage candidates for the surplus power, together with the information on the predetermined operations, and

wherein the appliance control unit selects a combination of electric appliances which efficiently consume the surplus power among the power usage candidates, based on the amount of the surplus power predicted by the surplus power prediction unit, the information on the predetermined operations stored in the appliance information storage unit, and the information on the times taken to activate the electric appliances, thus activating the selected electric appliances according to the times taken to activate each of the selected electric appliances before the surplus power generation time predicted by the surplus power prediction unit, and enables the surplus power to be supplied to the selected electric appliances when the surplus power detection unit detects the surplus power to allow the electric appliances to execute the predetermined operations.