Study of stability regions in parallel connected boost converters

Yuehui Huang, Chi Kong Tse

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

Abstract

This paper describes the coexisting attractors of parallel connected boost switching converters under a master-slave current sharing scheme. We present the basins of attraction of desired and undesired attractors, which provide design information on the conditions for hot-swap operations. The system employs a typical proportional-integral (PI) controller for regulation. It is shown that the system will converge to different attractors for different initial conditions with the same control parameters. Simulation results are given to illustrate the phenomenon. This study is relevant to practical design. Specifically, we show that the stability regions obtained from linear methods (i.e., considering only local stability) can be over-optimistic as the global stability regions are found to be more restrictive in the parameter space.
Original languageEnglish
Title of host publicationConference Proceedings - IPEMC 2006
Subtitle of host publicationCES/IEEE 5th International Power Electronics and Motion Control Conference
Pages580-584
Number of pages5
Volume1
DOIs
Publication statusPublished - 1 Dec 2007
EventIPEMC 2006: CES/IEEE 5th International Power Electronics and Motion Control Conference - Shanghai, China
Duration: 14 Aug 200616 Aug 2006

Conference

ConferenceIPEMC 2006: CES/IEEE 5th International Power Electronics and Motion Control Conference
Country/TerritoryChina
CityShanghai
Period14/08/0616/08/06

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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