Interacting bifurcation phenomenon in three-phase voltage source converter connected to non-ideal power grid

Meng Huang, Chi Kong Tse, Siu Chung Wong, Xinbo Ruan, Cheng Wan

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

5 Citations (Scopus)


Three-phase voltage source converters are commonly used to convert ac power from a three-phase grid to a regulated dc voltage with controlled unity input power factor. However, the non-ideal power grid may drive the converter to enter a low-frequency instability region. As a result of the emergence of low-frequency oscillation, the stability boundary leading to a catastrophic bifurcation shrinks dramatically. Simulation results show the interaction of the low-frequency oscillation and the catastrophic bifurcation. Analytical calculations based on harmonic balance are adopted to show how the stability margin is affected.
Original languageEnglish
Title of host publicationProceedings, IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society
Number of pages6
Publication statusPublished - 1 Dec 2013
Event39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013 - Vienna, Austria
Duration: 10 Nov 201314 Nov 2013


Conference39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013


  • catastrophic bifurcation
  • Grid interaction
  • Hopf bifurcation
  • low-frequency instability
  • three-phase voltage source converter

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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