H6-type Igbt Configuration for Single Phase Grid Connected Transformerless Photovoltaic Applications

All active switches is presented for a proposed high-efficiency photovoltaic inverter, no isolated, grid connected photovoltaic applications. The proposed H6-type configuration features high efficiency over a wide load range, low ground leakage current, no need for split capacitors, and low-output ac-current distortion. The detailed SPWM scheme, photovoltaic power supply and the power stage of operating principle are described. In this paper not only IGBT, but also MOSFET switch inverter topology explained. The proposed H6 type transformerless inverter topology can be able to reduce strong ground leakage current. The single phase IGBT H6-type transformerless grid connected PV system is simulated using MATLAB/SIMULINK