Transient disturbance rejection improvement by a combined variable structure-model following control approach

K. M. Tsang, G. Li, Siu Lau Ho

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

2 Citations (Scopus)

Abstract

The attractive invariance features of Variable Structure Control (VSC) systems are present only during the sliding motion and not in the initial phase of reaching the sliding manifold. If the transient at initial phase is not negligible, the overall system performance, e.g., the overall disturbance rejection, may not be satisfactory. In this paper, a novel combined Variable Structure-Model Following Control (VS-MFC) scheme which is quite different from the general Variable Structure Model Following Control (VSMFC) is proposed to improve the load disturbance rejection of a variable structure control brushless DC motor speed drive. Numerical results demonstrate that the proposed VS-MFC scheme can greatly improve the transient load rejection of the speed drive during the non-sliding recovery process resulting from the suddenly added load disturbance while maintaining the robustness of the sliding mode control to motor parameter variations.
Original languageEnglish
Title of host publicationProceedings of the International Conference on Power Electronics and Drive Systems
PublisherIEEE
Pages1128-1133
Number of pages6
Publication statusPublished - 1 Dec 1999
EventProceedings of the 1999 3rd IEEE International Conference on Power Electronics and Drive Systems (PEDS'99) - Kowloon, Hong Kong
Duration: 27 Jul 199929 Jul 1999

Conference

ConferenceProceedings of the 1999 3rd IEEE International Conference on Power Electronics and Drive Systems (PEDS'99)
Country/TerritoryHong Kong
CityKowloon
Period27/07/9929/07/99

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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