[특허]Energy storage device power consumption management

Energy storage device power consumption management 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02J-007/00 H02J-003/14 H02J-003/28 H02J-007/34 G05F-001/66 H02J-013/00
출원번호	US-0110898 (2015-01-16)
등록번호	US-10186879 (2019-01-22)
국제출원번호	PCT/US2015/011779 (2015-01-16)
국제공개번호	WO2015/116408 (2015-08-06)
발명자 / 주소	Steffes, Paul J. Steffes, Thomas P. Zeller, Austin P.
출원인 / 주소	Steffes Corporation
대리인 / 주소	Kaul, Brian D.
인용정보	피인용 횟수 : 0 인용 특허 : 34

초록 ▼

An energy storage device includes a device controller, an electrical energy converter, an energy storage medium and a power metering device. In a method of managing electrical power consumption by a group of the energy storage devices, a measured power level is output from the power metering device of each energy storage device. The power level represents a rate of electrical energy consumption by the electrical energy converter of the device. The measured power levels of each of the devices are communicated to a system controller using the device controllers. An aggregate power level is calculated based on the measured power levels, and is stored in memory using the system controller. In some embodiments, the aggregate power level is communicated to a remote location, such as an electrical power distribution system.

대표청구항 ▼

1. A method of managing electrical power consumption by a group of energy storage devices, each energy storage device comprising a device controller, an electrical energy converter, an energy storage medium and a power metering device, the method comprising: outputting a measured power level from the power metering device of each energy storage device, each power level representing a rate of electrical energy consumption by the electrical energy converter of the energy storage device;communicating the measured power levels of each of the energy storage devices to a system controller using the device controllers;calculating an aggregate power level based on the measured power levels using the system controller;storing the aggregate power level in memory using the system controller; andconsuming electrical energy using the electrical energy converters of the energy storage devices comprising: a) receiving a first charge level from each of the energy storage devices using the system controller, each charge level indicating a level of charge of the energy storage medium;b) calculating a first aggregate charge level of the energy storage devices based on the first charge levels using the system controller;c) calculating a group energy consumption rate based on the first aggregate charge level using the system controller;d) consuming electrical energy using the electrical energy converters of the energy storage devices at individual rates that are based on the group energy consumption rate;e) receiving a second charge level from a subset of the energy storage devices using the system controller;f) calculating a second aggregate charge level of the energy storage devices based on the received second charge levels and the first charge levels of the energy storage devices from which a second charge level was not received in step e);g) determining a second group energy consumption rate based on the second aggregate charge level using the system controller; andh) consuming electrical energy using the electrical energy converters of the energy storage devices at a rate that is based on the second group energy consumption rate. 2. The method according to claim 1, further comprising communicating the aggregate power level to an electrical power distribution system using the system controller. 3. The method according to claim 1, wherein: the method further comprises communicating a control signal indicating the group energy consumption rate from the system controller to the device controllers; andthe consuming step d) comprises consuming electrical energy using the electrical energy converters of the energy storage devices at the individual rates, which are based on the control signal. 4. The method according to claim 1, wherein for each energy storage device, the consuming step d) comprises: calculating the individual rate based on the group energy consumption rate and the first charge level of the energy storage device; andconsuming electrical energy at the individual rate using the electrical energy converter of the energy storage device. 5. The method of claim 4, wherein calculating the individual rate for each energy storage device based on the group energy consumption rate comprises calculating a difference between the group energy consumption rate and the first charge level of the energy storage device. 6. The method according to claim 1, wherein: the method further comprises receiving a command signal from an electrical power distribution system using the system controller, the command signal including a commanded power consumption rate; andcalculating a group energy consumption rate comprises calculating the group energy consumption rate based on the aggregate charge level, the commanded power consumption rate and a charge level index, using the system controller. 7. The method according to claim 1, wherein the energy storage medium includes one of a heat storage medium, a battery, and a chemical storage medium.

이 특허에 인용된 특허 (34)

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