Center-Point Voltage Balancing of Hysteresis Current Controlled Three-Level PWM Rectifiers

  title={Center-Point Voltage Balancing of Hysteresis Current Controlled Three-Level PWM Rectifiers},
  author={Luca Dalessandro and S. D. Round and J. W. Kolar},
  journal={IEEE Transactions on Power Electronics},
The output center-point voltage of a hysteresis current-controlled three-level, unidirectional PWM rectifier is not naturally stable. This paper shows that the balancing of the center-point voltage can be realized by adding an offset to the input current-reference and that this offset results in a change of the relative on-times of the redundant switching states. The space-vector representation of the input rectifier voltage and current is used to help explain the effect of the current-offset… CONTINUE READING
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Analysis of variation of neutral point potential in neutral-point-clamped voltage source PWM inverters

  • S. Ogasawara, H. Akagi
  • Proc. Ind. Appl. Conf., 1993, vol. 2, pp. 965–970…
  • 1993
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