Evaluation of Carrier-Based Modulation Techniques With Common-Mode Voltage Reduction for Neutral Point Clamped Converter

  title={Evaluation of Carrier-Based Modulation Techniques With Common-Mode Voltage Reduction for Neutral Point Clamped Converter},
  author={Meng-Jiang Tsai and Hsin-Chih Chen and Meng-Ru Tsai and Yao-bang Wang and Po-Tai Cheng},
  journal={IEEE Transactions on Power Electronics},
Common-mode voltage output is closely associated with switching states in three-phase three-wire neutral point clamped converter. Detailed analysis shows avoiding redundant states can effectively improve the common-mode voltage, so this paper proposes a pulse width modulation (PWM) technique with zero redundant state to reduce the common-mode voltage output, and evaluates their performance with the conventional PWM schemes. This paper also takes the compensation of neutral point potential… CONTINUE READING


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