Active Power Curtailment Paper.pdf

PV inverters provide voltage support using active power curtailment (Active power – Voltage droop control). There is an inherent unfairness in the active power curtailment scheme. When generation is high and consumption is low, voltages at the end of the feeder tend to be the highest. This results in high curtailment of active power output of the inverters located at the end of the feeder, and low or even no curtailment for the inverts located closer to the transformer.  A Secondary voltage controller has been implemented to mitigate this unfairness in active power curtailment based voltage support schemes. The focus of this work is to quantify this unfairness and develop methods that enable any two house owners serviced by the same feeder intending to install rooftop PV systems as a potential source of revenue have equal opportunity in PV generation and equal participation in voltage regulation.