Proportional integral plus multi-frequency resonant current controller for grid-connected voltage source converter under imbalanced and distorted supply voltage conditions

J.B. Hu, Wei Zhang, Hong-sheng Wang, Y.K. He, L. Xu

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

This paper proposes a current control scheme for a grid-connected pulse width modulator (PWM) voltage source converter (GC-VSC) under imbalanced and distorted supply voltage conditions. The control scheme is implemented in the positive synchronously rotating reference frame and composed of a single proportional integral (PI) regulator and multi-frequency resonant controllers tuned at the frequencies of 2ω and 6ω, respectively. The experimental results, with the target of eliminating the active power oscillations and current harmonics on a prototype GC-VSC system, validate the feasibility of the proposed current control scheme during supply voltage imbalance and distortion.
Original languageEnglish
Pages (from-to)1532-1540
Number of pages9
JournalJournal of Zhejiang University - Science A
Volume10
Issue number10
DOIs
Publication statusPublished - Oct 2009

Keywords

  • grid-connected voltage source converter
  • GC-VSC
  • proportional integral plus multi-frequency resonant
  • PI+MFR
  • imbalance
  • harmonics distortion

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