Publication
Juyeon Lee, Young-Min Go, and June-Seok Lee, "A Carrier-Based DPWM Method with Dynamic Clamping State Selection for Neutral-Point Voltage Balance in Vienna Rectifier," IEEE Transactions on Power Electronics, In press.
In Press
2025
PEEMS
-
Nov. 5, 2025
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1. Authors: Juyeon Lee, Young-Min Go, and June-Seok Lee
2. Title: A Carrier-Based DPWM Method with Dynamic Clamping State Selection for Neutral-Point Voltage Balance in Vienna Rectifier
3. Journal: IEEE Transactions on Power Electronics
4. Vol/no/pp: -
5. Date: -
6. Abstract
: In the Vienna rectifier, a common issue of discontinuous pulse-width modulation (DPWM) methods is that the clamping operations induce significant neutral-point (NP) voltage fluctuations which lead to distortion of the input current. In this paper, a carrier-based DPWM (CB-DPWM) method with dynamic clamping state selection (DCSS) for NP voltage balance is proposed. The proposed method selects a combination of a certain phase and switching state as a clamping operation, to mitigate the NP voltage imbalance. The selection of the combination is determined based on the theoretically estimated NP voltage instead of the sensed one, which enables the proposed method to be implemented independent of the voltage sensor accuracy. In addition, an alternative PWM sequence is proposed to minimize additional switching losses by considering the operation of DCSS. The validity of the proposed method is verified through experiments.
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