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Multilevel Inverter to Reduce Common Mode Voltage in AC Motor Drives Using SPWM Technique

  • Renge, Mohan M. (Dept. of Electrical Eng., Shri Ramdeobaba Kamla Nehru Engineering College) ;
  • Suryawanshi, Hiralal M. (Dept. of Electrical Eng., Visvesvaraya National institute of Technology)
  • Received : 2009.08.04
  • Published : 2011.01.20

Abstract

In this paper, an approach to reduce common-mode voltage (CMV) at the output of multilevel inverters using a phase opposition disposed (POD) sinusoidal pulse width modulation (SPWM) technique is proposed. The SPWM technique does not require computations therefore, this technique is easy to implement on-line in digital controllers. A good tradeoff between the quality of the output voltage and the magnitude of the CMV is achieved in this paper. This paper realizes the implementation of a POD-SPWM technique to reduce CMV using a five-level diode clamped inverter for a three phase induction motor. Experimental and simulation results demonstrate the feasibility of the proposed technique.

Keywords

References

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