Hybrid electric generating power plant that uses a combination of real-time generation facilities and energy storage system
First Claim
1. A method of controlling power supplied to an electric grid using at least one energy storage device to store energy, the method comprising:
- receiving, in a grid indication receiver, an indication of power to be supplied to the electric grid;
generating power from at least one power generator;
receiving, by a controller, the received indication of power to be supplied to the grid from the grid indication receiving device;
determining, by the controller, an optimum discharge and storage profile of the at least one energy storage device or a predetermined power discharge and storage profile of the at least one energy storage device;
adjusting, by the controller, the storage of energy by the at least one energy storage device according to the optimum discharge and storage profile or the predetermined power discharge and storage profile of the at least one energy storage device; and
adjusting, based on the optimum or predetermined power discharge and storage profile of the at least one energy storage device, power generation from the at least one power generator to satisfy the indication of power to be supplied to the electric grid received from the grid indication receiver,wherein the indication includes at least one of;
(1) a signal that indicates a present power supply level to be supplied to the electric grid,(2) a signal indicating a grid frequency for determining a present adjustment to the power to be supplied to the electric grid, or(3) one or more operating parameters indicating one or more operating set points for operation of a combination of the at least one power generator and the energy storage device, andwherein the optimum or the predetermined power discharge and storage profile of the at least one energy storage device and an optimum or a predetermined ramp profile of the at least one power generator are based on at least two factors selected from the group consisting of;
(1) wear and tear on respective equipment;
(2) an optimum rate of change of the at least one power generator;
(3) a fuel consumption rate profile of the at least one power generator;
(4) a state of charge (SOC) of the at least one energy storage device;
(5) a durability of the respective equipment,(6) costs of initial acquisition and depreciation of the at least one power generator and the at least one energy storage device; and
(7) transmission losses of the power distributed by the electric grid.
3 Assignments
0 Petitions
Accused Products
Abstract
Approaches for controlling power supplied to an electric grid are disclosed. In embodiments, methods and systems control power supplied to an electric grid using an energy storage device. In an embodiment, a method receives an indication of power to be supplied to the electric grid, generates power from a power generator and adjusts, using the generated power, an energy level of the energy storage device to control power supplied to the grid in accordance with the received indication. In another embodiment, a system comprises a grid indication receiver for receiving an indication of power to be supplied to the electric grid; a power generator connected to the grid; an energy storage device coupled to the power generator; and a controller for adjusting, using the generated power from the generator, an energy level of the energy storage device to control power supplied to the grid in accordance with the received indication.
25 Citations
28 Claims
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1. A method of controlling power supplied to an electric grid using at least one energy storage device to store energy, the method comprising:
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receiving, in a grid indication receiver, an indication of power to be supplied to the electric grid; generating power from at least one power generator; receiving, by a controller, the received indication of power to be supplied to the grid from the grid indication receiving device; determining, by the controller, an optimum discharge and storage profile of the at least one energy storage device or a predetermined power discharge and storage profile of the at least one energy storage device; adjusting, by the controller, the storage of energy by the at least one energy storage device according to the optimum discharge and storage profile or the predetermined power discharge and storage profile of the at least one energy storage device; and adjusting, based on the optimum or predetermined power discharge and storage profile of the at least one energy storage device, power generation from the at least one power generator to satisfy the indication of power to be supplied to the electric grid received from the grid indication receiver, wherein the indication includes at least one of; (1) a signal that indicates a present power supply level to be supplied to the electric grid, (2) a signal indicating a grid frequency for determining a present adjustment to the power to be supplied to the electric grid, or (3) one or more operating parameters indicating one or more operating set points for operation of a combination of the at least one power generator and the energy storage device, and wherein the optimum or the predetermined power discharge and storage profile of the at least one energy storage device and an optimum or a predetermined ramp profile of the at least one power generator are based on at least two factors selected from the group consisting of; (1) wear and tear on respective equipment; (2) an optimum rate of change of the at least one power generator; (3) a fuel consumption rate profile of the at least one power generator; (4) a state of charge (SOC) of the at least one energy storage device; (5) a durability of the respective equipment, (6) costs of initial acquisition and depreciation of the at least one power generator and the at least one energy storage device; and (7) transmission losses of the power distributed by the electric grid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 28)
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16. An apparatus for controlling power supplied to an electric grid using at least one power generator and at least one energy storage device coupled to the electric grid, the apparatus comprising:
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a grid indication receiver configured to receive an indication of power to be supplied to the electric grid; and a controller configured to receive the indication of power to be supplied to the grid from the grid indication receiver, determine an optimum discharge and storage profile of the at least one energy storage device or a predetermined power discharge and storage profile of the at least one energy storage device, adjust the storage of energy by the at least one energy storage device according to the optimum discharge and storage profile or the predetermined power discharge and storage profile of the at least one energy storage device, and adjust, based on the optimum or predetermined power discharge and storage profile of the at least one energy storage device, power generation from the at least one power generator to satisfy the indication of power to be supplied to the electric grid received from the grid indication receiver, wherein the indication includes at least one of; (1) a signal that indicates a present power supply level to be supplied to the electric grid, (2) a signal indicating a grid frequency for determining a present adjustment to the power to be supplied to the electric grid, or (3) one or more operating parameters indicating one or more operating set points for operation of a combination of the at least one power generator and the energy storage device, and wherein the optimum or the predetermined power discharge and storage profile of the at least one energy storage device and an optimum or a predetermined ramp profile of the at least one power generator are based on at least two factors selected from the group consisting of; (1) wear and tear on respective equipment; (2) an optimum rate of change of the at least one power generator; (3) a fuel consumption rate profile of the at least one power generator; (4) a state of charge (SOC) of the at least one energy storage device; (5) a durability of the respective equipment, (6) costs of initial acquisition and depreciation of the at least one power generator and the at least one energy storage device; and (7) transmission losses of the power distributed by the electric grid. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A system for controlling power supplied to an electric grid, the system comprising:
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a grid indication receiver configured to receive an indication of power to be supplied to the electric grid; at least one power generator configured to generate power, the at least one power generator being connected to the electric grid; at least one energy storage device configured to store energy, the at least one energy storage device being coupled to the at least one power generator and the electric grid; a controller configured to receive the indication of power to be supplied to the grid from the grid indication receiver, determine an optimum discharge and storage profile of the at least one energy storage device or a predetermined power discharge and storage profile of the at least one energy storage device, adjust the storage of energy by the at least one energy storage device according to the optimum discharge and storage profile or the predetermined power discharge and storage profile of the at least one energy storage device, and adjust, based on the optimum or predetermined power discharge and storage profile of the at least one energy storage device, power generation from the at least one power generator to satisfy the indication of power to be supplied to the electric grid received from the grid indication receiver, wherein the indication includes at least one of; (1) a signal that indicates a present power supply level to be supplied to the electric grid, (2) a signal indicating a grid frequency for determining a present adjustment to the power to be supplied to the electric grid, or (3) one or more operating parameters indicating one or more operating set points for operation of a combination of the at least one power generator and the energy storage device, and wherein the optimum or the predetermined power discharge and storage profile of the at least one energy storage device and an optimum or a predetermined ramp profile of the at least one power generator are based on at least two factors selected from the group consisting of; (1) wear and tear on respective equipment; (2) an optimum rate of change of the at least one power generator; (3) a fuel consumption rate profile of the at least one power generator; (4) a state of charge (SOC) of the at least one energy storage device; (5) a durability of the respective equipment, (6) costs of initial acquisition and depreciation of the at least one power generator and the at least one energy storage device; and (7) transmission losses of the power distributed by the electric grid.
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27. A non-transitory computer readable storage medium having instructions stored thereon that, in response to execution by a computing device, cause the computing device to perform operations for controlling power supplied to an electric grid using at least one energy storage device to store energy, the operations comprising:
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receiving an indication of power to be supplied to the electric grid from a grid indication receiving device; generating power from at least one power generator; determining an optimum discharge and storage profile of the at least one energy storage device or a predetermined power discharge and storage profile of the at least one energy storage device; adjusting the storage of energy by the at least one energy storage device according to the optimum discharge and storage profile or the predetermined power discharge and storage profile of the at least one energy storage device; and adjusting, based on the optimum or predetermined power discharge and storage profile of the at least one energy storage device, power generation from the at least one power generator to satisfy the indication of power to be supplied to the electric grid received from the grid indication receiver, wherein the indication includes at least one of; (1) a signal that indicates a present power supply level to be supplied to the electric grid, (2) a signal indicating a grid frequency for determining a present adjustment to the power to be supplied to the electric grid, or (3) one or more operating parameters indicating one or more operating set points for operation of a combination of the at least one power generator and the energy storage device, and wherein the optimum or the predetermined power discharge and storage profile of the at least one energy storage device and an optimum or a predetermined ramp profile of the at least one power generator are based on at least two factors selected from the group consisting of; (1) wear and tear on respective equipment; (2) an optimum rate of change of the at least one power generator; (3) a fuel consumption rate profile of the at least one power generator; (4) a state of charge (SOC) of the at least one energy storage device; (5) a durability of the respective equipment, (6) costs of initial acquisition and depreciation of the at least one power generator and the at least one energy storage device; and (7) transmission losses of the power distributed by the electric grid.
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Specification