Three-phase PV inverter based on segmentation fuzzy PID control

Abstract

The method of three-phase PV inverter has the deficiency such as wave distortion and long adjustment time. Aimed at this situation, we propose a modified fuzzy PID control strategy. According to the characteristics of the running, we devise a modified fuzzy PID controller parameter setting principle, which add the power coefficient to Fuzzy Inference Engine with the error and error rate, to make the dynamic and steady-state performances of the method superior. At last, the simulation and experiment results verifies the feasibility and effectiveness of the proposed method.