Assessment and Analysis of Harmonics for Multiple RES with Grid Connected Three Phase Inverter

ABSTRACT Powerelectronic interfacing based devices for conversion of DC to AC for grid integration of multiple renewable energy sources (RES) causes voltage/current harmonic distortions on the power grid. This paper presents simulation for harmonic current profiles for three phase inverters of these interfacing for individual source. In this context, we present harmonic mitigation for multiple RES while grid integration. The system is proposed for 10 KW capacities for loads with switching of shunt connected capacitor by programming in the DSP. The signals for switching the capacitor are performed through digital signal processing (DSP) by sending voltage and current status through hall-effect sensors. The harmonics are mitigated for total harmonics distortion (THD) level and reported in results of testing. Keywords - Solar PV, Wind Energy, Total Harmonic Distortion(THD), DSP, IGBT, Hall-Effect Sensors