Nonlinear Behavior and Instability in a Three-Phase Boost Rectifier Connected to a Nonideal Power Grid With an Interacting Load

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Cheng Wan
  • Meng Huang
  • Chi K. Tse
  • Siu-Chung Wong
  • Xinbo Ruan

Detail(s)

Original languageEnglish
Article number6353249
Pages (from-to)3255-3265
Journal / PublicationIEEE Transactions on Power Electronics
Volume28
Issue number7
Online published16 Nov 2012
Publication statusPublished - Jul 2013
Externally publishedYes

Abstract

Three-phase voltage source converters (VSCs) are commonly used to convert ac power from a three-phase grid to a regulated dc voltage with unity input power factor. The control of the VSC is normally achieved by an outer voltage feedback loop and a sinusoidal pulsewidth-modulated inner current loop. However, the nonideal power grid and the presence of other interacting loads give rise to nonlinear operation and drive the VSC to enter an irreversible instability region. In this paper, an irreversible bifurcation phenomenon in a three-phase VSC connected to a power grid with an interacting load is reported. The converter can also be regarded as exhibiting a catastrophic bifurcation in which the input current expands to impose undesirable component stress. A large-signal analysis is adopted to identify the physical origin of the phenomenon and to locate the boundary of the instability. Experimental results on a 4-kVA ac/dc converter prototype provide verification of the instability phenomenon. © 1986-2012 IEEE.

Research Area(s)

  • Bifurcation, instability, power grid, three-phase voltage source converter (VSC)

Citation Format(s)

Nonlinear Behavior and Instability in a Three-Phase Boost Rectifier Connected to a Nonideal Power Grid With an Interacting Load. / Wan, Cheng; Huang, Meng; Tse, Chi K. et al.

In: IEEE Transactions on Power Electronics, Vol. 28, No. 7, 6353249, 07.2013, p. 3255-3265.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review