common mode voltage

Dear Everybody! I developed a new vienna rectifier based PMG generator rectifier solution. My vienna rectifier input is connect to the PMG generator across the 3 boost inductor. I developed the control algorithm in matlab simulink, and I recognized that the PMG star point (N) and the vienna...

Dear all, What is common mode voltage in a H bridge inverter ? from sources I understand that Vcm=(Vao+Vbo+Vco)/3 but what is its physical significance ... especially in Transformerless inverter. How this common mode voltage will be made constant .. How or why it will not be constant FYI:I...