Single Phase Photovoltaic Power Generation System For Compensation Harmonic Current

摘要

PURPOSE: A single phase photovoltaic power generation system is provided to prevent the deterioration of power quality by compensating a harmonic element through an MPPT(Maximum Power Point Tracking). CONSTITUTION: A solar cell(110) generates DC power. A first measuring instrument(125) measures a DC voltage and a DC current of the DC power. A DC-AC converter(130) changes the DC power to AC power. An MPPT controller(163) generates a reference voltage. A second measuring instrument measures a system voltage and a system current of the AC power. A third measuring instrument measures the load current of the AC power supplied to the load. A second PI(Proportional Integral) controller(184) generates a first control signal. A control signal generator generates a phase control signal according to the first control signal.