Instability and bifurcation in parallel-connected buck converters under a master-slave current sharing scheme

Herbert H C Iu, Chi Kong Tse

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

26 Citations (Scopus)


This paper describes the bifurcation phenomena of a system of parallel-connected dc/dc buck converters. The results provide useful information for the design of stable current sharing in a master-slave connection configuration. Computer simulations are performed to capture the effects of variation of some chosen parameters on the qualitative behaviour of the system. It is found that while variation of the voltage feedback gains leads to standard period-doubling bifurcation, variation of the current sharing ratio leads to border collision bifurcation. Analysis is presented to establish the possibility of the bifurcation phenomena and to locate the current sharing ratio at which border collision occurs.
Original languageEnglish
Title of host publicationPESC Record - IEEE Annual Power Electronics Specialists Conference
Number of pages6
Publication statusPublished - 1 Dec 2000
Event2000 IEEE 31st Annual Power Electronics Specialists Conference (PESC) - Galway, United Kingdom
Duration: 1 Dec 2000 → …
Conference number: 31


Conference2000 IEEE 31st Annual Power Electronics Specialists Conference (PESC)
Country/TerritoryUnited Kingdom
Period1/12/00 → …

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this