Current Synchronous Detection based control of grid interfaced Solar Photovoltaic power generating system

In this paper, a CSD (Current Synchronous Detection) based control of a grid interfaced SPV (Solar Photovoltaic) power generating system is proposed with an improved power quality at ac mains. A two-stage SPV based grid interfaced three-phase four-leg VSC (Voltage Source Converter) based system is designed and modeled in order to achieve the compensation of reactive power for ZVR (Zero Voltage Regulation) or for PFC (Power Factor Correction) along with load balancing, elimination of load harmonics currents and mitigation of neutral current at the PCC in a four-wire distribution system. The performance of SPV generating system is simulated using MATLAB/simulink and sim-power system.