This paper deals with the p-q theory for the generation of reference current in shunt current compensation and reference voltage in series voltage compensation. Basic p-q theory is use to generate reference current and voltage in shunt and series compensation respectively Clarke transformation i. e. ?-?-0 transformation and inverse Clarke transformation is use in basic p-q theory. The results are supported by detailed simulation studies on a three phase four-wire compensated system using Matlab.

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p-q theory AC power Shunt compensation Series compensation