Research on parallel switching device current sharing of Switched Reluctance Motor

Based on the application of Switched Reluctance Motor, select asymmetrical half bridge topology structure, selection of four parallel MOSFETs as power switching devices to construct a low cost power converter. The main hardware parameters which may cause the uneven flow are studied. Further through the software optimization control, the current sharing results are corrected. That in turns chopper control mode MOSFETs current sharing result is the best. In this paper, the design idea of the power converter with hardware layout current sharing and software control frequency sharing is proposed, which can meet the requirements of the design of the power converter.