Managing renewable power generation
First Claim
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1. A method of managing a cumulative power transfer from a renewable power source and a power storage device to a load, the method comprising:
- determining, by processing circuitry, a rate of change in a first power transfer from the renewable power source to the load;
determining, by the processing circuitry, that the rate of change of the first power transfer exceeds a limit; and
then,adjusting, by control circuitry, a second power transfer to or from the power storage device to the load, wherein the adjusting is sufficient to prevent a rate of change of the cumulative power transfer to the load from exceeding the limit,determining, by the processing circuitry, a present state-of-charge of the power storage device; and
adjusting the limit, by the processing circuitry, based on the present state-of-charge of the power storage device.
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Abstract
A power delivery rate from a renewable power source to a load is managed by determining, by processing circuitry, a change in a power generation rate, determining, by the processing circuitry, whether the change in the power generation rate exceeds a limit, and then, adjusting, by control circuitry, a power transfer rate to or from a power storage device, such that the adjusting is sufficient to prevent the power delivery rate from exceeding the limit.
35 Citations
17 Claims
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1. A method of managing a cumulative power transfer from a renewable power source and a power storage device to a load, the method comprising:
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determining, by processing circuitry, a rate of change in a first power transfer from the renewable power source to the load; determining, by the processing circuitry, that the rate of change of the first power transfer exceeds a limit; and
then,adjusting, by control circuitry, a second power transfer to or from the power storage device to the load, wherein the adjusting is sufficient to prevent a rate of change of the cumulative power transfer to the load from exceeding the limit, determining, by the processing circuitry, a present state-of-charge of the power storage device; and adjusting the limit, by the processing circuitry, based on the present state-of-charge of the power storage device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A control system for a bidirectional power device coupled to a dynamic power source converting renewable energy into electrical power, the control system comprising:
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a storage device having stored thereon machine-readable instructions specifying a ramp rate control operation; a set of I/O ports configured to receive information regarding the bidirectional power device and the dynamic power source; a processor coupled to the set of I/O ports and the storage device and configured to execute the machine-readable instructions to perform operations comprising; determining a rate of change of a first power transfer from the dynamic power source to a load; determining that the rate of change exceeds a limit; and
then,adjusting a second power transfer to or from the bidirectional power device to the load, wherein the adjusting is sufficient to prevent a cumulative rate of change of power at the load from exceeding the limit, determining a present state-of-charge of the power storage device; and adjusting the limit based on the present state-of-charge of the power storage device. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A machine-readable storage device having stored thereon instructions operable to cause a power generation control system to perform the operations of:
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determining a rate of change of a first power transfer from a dynamic power source to a load; determining that rate of the change exceeds a limit; and
then,adjusting a second power transfer to or from a power storage device to the load, wherein the adjusting is sufficient to prevent a rate of change of a cumulative power transfer at the load from exceeding the limit, determining a present state-of-charge of the power storage device; and adjusting the limit based on the present state-of-charge of the power storage device. - View Dependent Claims (16, 17)
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Specification