Reactive power regulation and voltage support for renewable energy plants
AssigneeGeneral Electric Company
InventorsMark Edward Cardinal, Einar V. Larsen
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Abstract
Systems and methods are provided for reactive power regulation and voltage support for renewable energy plants. In one embodiment, a system and method are provided for coordinating voltage and reactive power output of a plant with one or more requirements associated with a utility. The method can include generating a VAR regulator output signal based at least in part on a reactive power control signal received from a utility, controlling reactive power and voltage output of the one or more power sources based at least in part on the generated VAR regulator output signal, aggregating reactive power output or the one or more power sources, and providing the aggregated reactive power to the utility.
Claims20
A method for coordinating voltage and reactive power output of a plant comprising one or more power sources with one or more requirements associated with a utility, the method comprising:
- generating, at a first response rate, a VAR regulator output signal based at least in part on a reactive power control signal received from a utility;
- controlling, at a second response rate, reactive power and voltage output of the one or more power sources based at least in part on the generated VAR regulator output signal, wherein the second response rate is greater than the first response rate;
- aggregating reactive power output of the one or more power sources;
- and,
- providing the aggregated reactive power to the utility.
A system for coordinating voltage and reactive power output of one or more power sources with one or more requirements associated with a utility, the system comprising:
- one or more power sources;
- a reactive power controller comprising:
- a reactive power regulator operable to:
- receive a reactive power control signal from the utility;
- and,
- generate, at a first response rate, a VAR regulator output signal voltage reference based at least in part on the reactive power control signal;
- and,
- a voltage regulator operable to:
- receive the VAR regulator output signal voltage reference generated by the reactive power regulator;
- receive a voltage reference from the utility;
- and,
- adjust, at a second response rate, the reactive power output of the one or more power sources in response to the VAR regulator output signal voltage reference received from the reactive power regulator or the voltage reference received from the utility, wherein the second response rate is greater than the first response rate;
- an aggregator to sum the real and reactive power output from the one or more power sources;
- and,
- a transmission device to transmit aggregated real and reactive power to the utility.
An apparatus for coordinating voltage and reactive power output of one or more power sources with one or more requirements associated with a utility, the apparatus comprising:
- a reactive power controller comprising:
- a reactive power regulator operable to:
- receive a reactive power control signal from the utility;
- and,
- generate, at a first response rate, a VAR regulator output signal voltage reference-based at least in part on the reactive power control signal;
- and,
- a voltage regulator operable to:
- receive the VAR regulator output signal voltage reference generated by the reactive power regulator;
- receive a voltage reference from the utility;
- and,
- adjust, at a second response rate, the reactive power output of the one or more power sources in response to the VAR regulator output signal voltage reference received from the reactive power regulator or the voltage reference received from the utility, wherein the second response rate is greater than the first response rate;
- and,
- an aggregator to sum the real and reactive power output from the one or more power sources.
Dependencies are inferred from the claim text.