Renewable energy system with integrated home power supply system
First Claim
1. A renewable energy system coupleable to each of a utility grid and a load, the renewable energy system comprising:
- a renewable energy source configured to generate a power output;
a power supply system connected to the renewable energy source to selectively receive at least a portion of the power output, the power supply system comprising;
a voltage modification circuit configured to condition power received thereby to generate a DC power output;
at least one energy storage device configured to store the DC power output from the voltage modification circuit; and
a power supply inverter connected to the at least one energy storage device to receive DC power therefrom and convert the DC power to an AC power output; and
a controller in operable communication with the renewable energy source, the power supply system and the utility grid to control a transfer of power therebetween, the controller being programmed to;
receive a power transfer request from the utility grid, the power transfer request including at least one of a desired power transfer level, power factor and energy or time duration of the power transfer;
compare a state-of-charge (SOC) of the at least one energy storage device and the power output of the renewable energy source to respective pre-determined SOC and power output thresholds;
complete the power transfer request from the utility grid if one or both of the SOC of the at least one energy storage device and the power output of the renewable energy source are greater than the respective SOC and power output thresholds; and
deactivate the power transfer request from the utility grid if one or both of the SOC of the at least one energy storage device and the power output of the renewable energy source are less than the respective SOC and power output thresholds.
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Accused Products
Abstract
A method for regulating a power transfer between a utility grid and a renewable energy system includes receiving a power transfer request from the utility grid at a controller of the renewable energy system that includes at least one of a desired power transfer level, power factor and energy or time duration of the power transfer. A SOC of an energy storage device of the renewable energy system and a power output of the renewable energy source are compared to respective SOC and power output thresholds, with the power transfer request being completed if the SOC and the power output are greater than the respective SOC and power output thresholds so as to cause the requested power to be transferred to the utility grid, and the power transfer request being denied if the SOC and the power output are less than the respective SOC and power output thresholds.
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Citations
21 Claims
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1. A renewable energy system coupleable to each of a utility grid and a load, the renewable energy system comprising:
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a renewable energy source configured to generate a power output; a power supply system connected to the renewable energy source to selectively receive at least a portion of the power output, the power supply system comprising; a voltage modification circuit configured to condition power received thereby to generate a DC power output; at least one energy storage device configured to store the DC power output from the voltage modification circuit; and a power supply inverter connected to the at least one energy storage device to receive DC power therefrom and convert the DC power to an AC power output; and a controller in operable communication with the renewable energy source, the power supply system and the utility grid to control a transfer of power therebetween, the controller being programmed to; receive a power transfer request from the utility grid, the power transfer request including at least one of a desired power transfer level, power factor and energy or time duration of the power transfer; compare a state-of-charge (SOC) of the at least one energy storage device and the power output of the renewable energy source to respective pre-determined SOC and power output thresholds; complete the power transfer request from the utility grid if one or both of the SOC of the at least one energy storage device and the power output of the renewable energy source are greater than the respective SOC and power output thresholds; and deactivate the power transfer request from the utility grid if one or both of the SOC of the at least one energy storage device and the power output of the renewable energy source are less than the respective SOC and power output thresholds. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for regulating a power transfer between a utility grid and a renewable energy system that includes a renewable energy source and a power supply system configured to selectively store and condition power provided thereto via an arrangement of a voltage modification circuit, energy storage system and power supply DC-AC inverter in the power supply system, the method comprising:
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receiving a power transfer request from the utility grid at a controller of the renewable energy system, the power transfer request including at least one of a desired power transfer level, power factor and energy or time duration of the power transfer to the utility grid; comparing, via the controller, a state-of-charge (SOC) of one or more energy storage devices of the energy storage system and a power output of the renewable energy source to respective pre-determined SOC and power output thresholds; completing the power transfer request from the utility grid if one or both of the SOC of the one or more energy storage devices and the power output of the renewable energy source are greater than the respective SOC and power output thresholds, so as to cause the requested power to be transferred to the utility grid; and denying the power transfer request from the utility grid if one or both of the SOC of the one or more energy storage devices and the power output of the renewable energy source are less than the respective SOC and power output thresholds. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification