Transient response of three-phase voltage-source converters under grid-side faults

Yu Peng, Jianjun Sun, Meng Huang, Xiaoming Zha, Zhong Xu, Xiaofei Cui, Chi Kong Tse

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

2 Citations (Scopus)


Three-phase voltage-source converters (VSC) are commonly used as a power flow interface in AC/DC hybrid power systems. The system may suffer from unpredictable transient disturbance from DC-side or grid-side faults. The nonlinear characteristics of VSCs have already been identified as exhibiting catastrophic bifurcation when there is a DC-side disturbance. In this paper, the transient response of a three-phase VSC under practical grid fault condition is studied. The converter will also exhibit a catastrophic bifurcation after the transient disturbance. The expanded AC current will cause excessive devise stress. A large-signal analysis is adopted to reveal the physical origin of the phenomenon and to locate the boundary of the instability. The phenomenon and the stability boundaries are verified by cycle-by-cycle simulations.
Original languageEnglish
Title of host publication2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015
Number of pages6
ISBN (Electronic)9781467371506
Publication statusPublished - 27 Oct 2015
Event7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015 - Palais des Congres de Montreal (Montreal Convention Centre), Montreal, Canada
Duration: 20 Sep 201524 Sep 2015


Conference7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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