Stability Index and Control Using PLL in Grid Connected Inverter System for Hybrid Renewable Energy System

Abstract

Power generation from Renewable energy sources is another solution for generation. But this Renewable energy generation systems contain many power electronic devices, which arises the power stability issues in the overall systems. Here, Hybrid renewable energy system (solar and wind) is used to generate electricity. This paper deals with the effect of grid connected voltage source inverter system using phase locked loop (PLL) and Proportional Integral controllers and stability index with nonlinear loads. For grid connected systems, a comparison is done with the proportional integral controllers and dq0 to abc transformation is used and then phase locked loop is used for control of inverter and Pulse width modulation is used to produce the gate pulse for the inverter system with the help of the MATLAB Simulink Model.