Impact of zero-voltage notches on outputs of soft-switching pulsewidth modulation converters

Zhengfeng Ming, Mengchu Zhou

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

Motivated by the method to analyze the impact of dead time in hard-switching converters, this paper, for the first time, analyzes the impact of zero-voltage notches on the outputs of soft-switching pulsewidth modulation (PWM) converters. It proves that the output distortion of soft-switching converters due to their deviation voltage is independent of the direction of their output current. Hence, their compensation strategies require no sensor to detect the current's direction, which is required by dead-time compensation methods in hard-switching converters. A simple yet effective compensation algorithm is presented for soft-switching converters. The analysis result and effectiveness of the proposed algorithm are experimentally verified via a three-phase inverter that represents an important class of converters.

Original languageEnglish (US)
Article number5510169
Pages (from-to)2345-2354
Number of pages10
JournalIEEE Transactions on Industrial Electronics
Volume58
Issue number6
DOIs
StatePublished - Jun 2011

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Keywords

  • Compensation strategies
  • converters
  • distortion
  • inverters
  • power electronics
  • sensor
  • soft-switching technique
  • zero-voltage notch

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