A series of new control methods for single-phase z-source inverters and the optimized operation

Wenzheng Xu, Ming Liu, Junwei Liu, Ka Wing Chan, Ka Wai Eric Cheng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

3 Citations (Scopus)

Abstract

This paper proposes a series of new control methods for single-phase Z-source inverters. A detailed description of the concept and principle of each method is first presented, then a comparison among them is conducted comprehensively. Afterwards, an optimized closed-loop control scheme with better harmonic elimination performance is derived. Experimental results obtained from a 1kW un-isolated Zsource inverter prototype have demonstrated the effectiveness of the proposed control method. Compared to the conventional boost control, the proposed scheme has better performance with reduced harmonics, more fiexible voltage gain, and simple algorithm.

Original languageEnglish
Article number2935023
Pages (from-to)113786-113800
Number of pages15
JournalIEEE Access
Volume7
DOIs
Publication statusPublished - 2019

Keywords

  • Closed-loop control
  • Harmonics suppression
  • Shoot-through states
  • Voltage boosting
  • Z-source inverters

ASJC Scopus subject areas

  • Computer Science(all)
  • Materials Science(all)
  • Engineering(all)

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