System and method for conserving energy resources through storage and delivery of renewable energy
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G05D-003/12
G05D-005/00
G05D-009/00
G05D-011/00
G05D-017/00
G06Q-030/02
G06Q-040/04
H02J-003/28
H02B-001/00
H02J-003/30
H02J-003/32
출원번호
US-0372238
(2012-02-13)
등록번호
US-8965594
(2015-02-24)
발명자
/ 주소
Marcus, David
출원인 / 주소
General Compression, Inc.
대리인 / 주소
Goodwin Procter LLP
인용정보
피인용 횟수 :
0인용 특허 :
47
초록▼
A system for encouraging the use of renewable energy sources and suitable for the conservation of energy resources through the efficient management of energy storage and delivery includes connections to a power source, an energy storage subsystem, and a power grid. The system includes a power routin
A system for encouraging the use of renewable energy sources and suitable for the conservation of energy resources through the efficient management of energy storage and delivery includes connections to a power source, an energy storage subsystem, and a power grid. The system includes a power routing subsystem coupled to the source and grid, and adapted to operate in a bypass mode, in which energy is transferred from the source to the grid. The system includes a conversion subsystem coupled to the routing and storage subsystems, and switchable in substantially real-time between a storage mode, in which energy is transferred from the routing to the storage subsystem, and a generation mode, in which energy is transferred from the storage to the routing subsystem for delivery to the grid. The system also includes a controller for directing the modes based at least in part on a market factor.
대표청구항▼
1. A system for encouraging the use of renewable energy sources and suitable for the conservation of energy resources through the efficient management of energy storage and delivery, the system comprising: a connection to a power source;a connection to an energy storage subsystem;a connection to a p
1. A system for encouraging the use of renewable energy sources and suitable for the conservation of energy resources through the efficient management of energy storage and delivery, the system comprising: a connection to a power source;a connection to an energy storage subsystem;a connection to a power grid;a power routing subsystem coupled to the power source and the power grid, and adapted to operate in a bypass mode, wherein energy is transferred from the power source to the power grid;a conversion subsystem coupled to the power routing subsystem and the storage subsystem, and switchable in substantially real-time between a storage mode, wherein energy is transferred from the power routing subsystem to the storage subsystem, and a generation mode, wherein energy is transferred from the storage subsystem to the power routing subsystem for delivery to the power grid;a trading subsystem for buying power from and selling power to a power trading market;a control subsystem for directing, based at least in part on a market factor comprising a future market price of energy or electricity, at least one of the conversion subsystem and the power routing subsystem to operate in a specific mode, and for directing the system to utilize power available from the power source, the storage subsystem, and the trading subsystem to fulfill contractual power service requirements. 2. The system of claim 1, wherein the power source is an intermittent power source selected from the group consisting of wind energy, solar energy, wave energy, tidal energy, falling water, hydro energy, biomass energy, and geothermal energy. 3. The system of claim 1, wherein the storage subsystem comprises a storage medium selected from the group consisting of fluidic storage, mechanical storage, kinetic storage, electrical storage, electrochemical storage, and thermal storage. 4. The system of claim 1, wherein the storage subsystem comprises a storage volume in a form selected from the group consisting of a pressure vessel, a subterranean cavern, a well, a flywheel, a battery, piping, a bladder, a hydrostatically pressure-compensated container, a lake, a pond, a liquid storage vessel, a water retention structure, and a capacitor. 5. The system of claim 1, wherein the conversion subsystem is adapted to convert energy to compressed gas, and comprises a motor/generator, a hydraulic pump/motor, a hydraulic actuator, and a compressor/expander connected in one of series or parallel. 6. The system of claim 1, wherein the directing, by the control subsystem, the conversion subsystem and the power routing subsystem to operate in a specific mode is further based on a comparison of the market factor to a threshold. 7. The system of claim 6, wherein the directing, by the control subsystem, the conversion subsystem and the power routing subsystem to operate in a specific mode is further based at least in part on an available capacity of the storage subsystem. 8. The system of claim 7, wherein the controller switches the conversion subsystem to operate in the storage mode when the market factor is less than the threshold by at least a predetermined margin and there exists available storage capacity. 9. The system of claim 8, wherein the predetermined margin is decreased when the available capacity is greater than a predetermined value, and wherein the predetermined margin is increased when the available capacity is less than a predetermined value. 10. The system of claim 7, wherein the controller directs the system to operate in at least one of the generation mode and the bypass mode when the market factor is greater than the threshold by at least a predetermined margin. 11. The system of claim 10, wherein the predetermined margin is increased when the available capacity is greater than a predetermined value, and wherein the predetermined margin is decreased when the available capacity is less than a predetermined value. 12. The system of claim 6, wherein the directing is further based at least in part on environmental conditions selected from the group consisting of present local environmental conditions, projected local environmental conditions, present remote environmental conditions, and projected remote environmental conditions. 13. The system of claim 6, wherein the directing is further based at least in part on environmental conditions selected from the group consisting of wind speed, wind direction, air temperature, air pressure, humidity, precipitation, cloud cover, season, length of daylight, tidal status, storage temperature, storage time, storage pressure, and day/night temperature differential. 14. The system of claim 6, wherein the threshold is selected from the group consisting of a present supply, a future supply, a present demand, a future demand, an average market price, and a present market price. 15. The system of claim 1, wherein the market factor further comprises a factor selected from the group consisting of a present market price of electricity, a trending price of electricity, a supply of electricity, and a demand of electricity. 16. The system of claim 1, wherein the controller further comprises a power delivery algorithm adapted to fulfill a power service selected from the group consisting of baseload, intermediate, peaking, load following, frequency regulation, spinning reserve, non-spinning reserve, black start, reactive power control, load source on demand response, and ramp-rate control. 17. The system of claim 16, wherein the power delivery algorithm is adapted to fulfill a long-duration power service simultaneously with at least one ancillary power service. 18. The system of claim 16, wherein the power delivery algorithm is adapted to fulfill the power service by one of simultaneously operating the system in the storage mode and the bypass mode, and simultaneously operating the system in the generation mode and the bypass mode. 19. The system of claim 1, wherein the trading subsystem is adapted to initiate at least one of a purchase of electricity, an offer to purchase electricity, a sale of electricity, and an offer to sell electricity. 20. The system of claim 1, wherein the trading subsystem is adapted to fulfill a power service by buying electricity at a market price, and selling electricity at a contract price.
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