A DC Inrush Current Minimisation Method using Modified Z-source Inverter in Adjustable Speed Drives

S. Renukadevi, M. Rathinakumar

Abstract


The adjustable speed drives employ PWM converter – inverter system in order to obtain unity power factor.The DC inrush current in DC link capacitors of the rectifier limits the operation of power devices.Hence, this paper proposes a new approach to reduce the DC inrush current by employing modified Z-source inverter in a Adjustable Speed Drive system. The operating principles, design procedure and simulation results are shown and compared with the conventional Z-Source inverter.


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DOI: http://doi.org/10.11591/ijpeds.v7.i4.pp1228-1232
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