Patent ID: 8427118
Filing Date: 2013-04-23
Classification: H02J,Y02E

Abstract:
1. A method for controlling power produced by a renewable energy source, the method comprising: regulating active power produced by the renewable energy source towards an apparent power setpoint; determining that a state of switch corresponds to a power factor foldback or a voltage foldback; and based on the determination, selectively regulating voltage based on the power factor foldback, the power factor being regulated based at least in part on a power factor angle magnitude setpoint, or based on the voltage foldback, the voltage being regulated based at least in part on measured volts-amps reactives (VARs) and an apparent power ratio, the apparent power ratio being about equal to an apparent power divided by the apparent power setpoint, wherein the power factor foldback and the voltage foldback are associated with the renewable energy source.