Control of combined storage and generation in distributed energy resources
First Claim
1. A controller for controlling an energy storage device and a power generation device used in a distributed energy resource, the controller comprising circuitry:
- to determine a mode of operation for an energy storage device and a power generation device based on an energy level of the energy storage device and on a load to which the energy storage device and the power generation device are operably coupled for power transfer;
to determine a first minimum power set point and a first maximum power set point for the energy storage device based on the determined mode of operation and on a storage output power, wherein the storage output power is measured at a first power bus operably coupled to the energy storage device;
to determine a second minimum power set point and a second maximum power set point for the power generation device based on the determined mode of operation and on a generation output power, wherein the generation output power is measured at a second power bus operably coupled to the power generation device;
to control a first output power of the energy storage device based on the determined first minimum power set point and the determined first maximum power set point; and
to control a second output power of the power generation device based on the determined second minimum power set point and the determined second maximum power set point.
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Accused Products
Abstract
A microsource is provided, which includes an energy storage device, a power generation device, and a controller. The energy storage device is operably coupled for power transfer to a load through a first power bus. The power generation device is operably coupled for power transfer to the load through a second power bus. The controller determines a mode of operation for the energy storage device and the power generation device based on an energy level of the energy storage device and on the load; determines minimum power set points and maximum power set points for the energy storage device and the power generation device based on the determined mode of operation, on a storage output power measured at the first power bus, and on a generation output power measured at the second power bus; and controls an output power of the energy storage device and an output power of the power generation device based on the determined minimum and maximum power set points.
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Citations
19 Claims
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1. A controller for controlling an energy storage device and a power generation device used in a distributed energy resource, the controller comprising circuitry:
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to determine a mode of operation for an energy storage device and a power generation device based on an energy level of the energy storage device and on a load to which the energy storage device and the power generation device are operably coupled for power transfer; to determine a first minimum power set point and a first maximum power set point for the energy storage device based on the determined mode of operation and on a storage output power, wherein the storage output power is measured at a first power bus operably coupled to the energy storage device; to determine a second minimum power set point and a second maximum power set point for the power generation device based on the determined mode of operation and on a generation output power, wherein the generation output power is measured at a second power bus operably coupled to the power generation device; to control a first output power of the energy storage device based on the determined first minimum power set point and the determined first maximum power set point; and to control a second output power of the power generation device based on the determined second minimum power set point and the determined second maximum power set point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of controlling an energy storage device and a power generation device used in a distributed energy resource, the method comprising:
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determining a mode of operation for an energy storage device and a power generation device based on an energy level of the energy storage device and on a load to which the energy storage device and the power generation device are operably coupled for power transfer; determining a first minimum power set point and a first maximum power set point for the energy storage device based on the determined mode of operation and on a storage output power, wherein the storage output power is measured at a first power bus operably coupled to the energy storage device; determining a second minimum power set point and a second maximum power set point for the power generation device based on the determined mode of operation and on a generation output power, wherein the generation output power is measured at a second power bus operably coupled to the power generation device; controlling a first output power of the energy storage device based on the determined first minimum power set point and the determined first maximum power set point; and controlling a second output power of the power generation device based on the determined second minimum power set point and the determined second maximum power set point.
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19. A microsource, the microsource comprising:
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an energy storage device operably coupled for power transfer to a load through a first power bus; a power generation device operably coupled for power transfer to the load through a second power bus; and a controller operably coupled with the energy storage device and the power generation device, the controller including circuitry to determine a mode of operation for the energy storage device and the power generation device based on an energy level of the energy storage device and on the load; to determine a first minimum power set point and a first maximum power set point for the energy storage device based on the determined mode of operation and on a storage output power measured at the first power bus; to determine a second minimum power set point and a second maximum power set point for the power generation device based on the determined mode of operation and on a generation output power measured at the second power bus; to control a first output power of the energy storage device based on the determined first minimum power set point and the determined first maximum power set point; and to control a second output power of the power generation device based on the determined second minimum power set point and the determined second maximum power set point.
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Specification