Design of a static reactive power compensator using fuzzy sliding mode control

Shun Yuan Wang*, Chin Ming Hong, Chun Chang Liu, Wei Tzen Yang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)


This paper demonstrates a fuzzy sliding mode control (FSMC) scheme for a static reactive power compensator (static VAR compensator or SVC) to improve the damping of a synchronous generator. A robust sliding regime is derived to guarantee the stability of the proposed FSMC under parameter uncertainties. Two types of FSMC, the fuzzy switching gain compensation and the fuzzy control signal compensation, are recommended to regulate the reactive power of the SVC. A synchronous generator system with the proposed FSMC-SVC has been studied and its dynamic responses are simulated. The results show that the suggested FSMC scheme possesses the advantages of fuzzy control and sliding mode control, e.g. insensitivity to parameter variations and load disturbances. Note that the dynamic performance of the synchronous machine system can be improved dramatically over a wide range of operating conditions. Furthermore, for simplification of practical implementation, the reducing switches (or local feedback) control is adopted.

Original languageEnglish
Pages (from-to)393-413
Number of pages21
JournalInternational Journal of Control
Issue number2
Publication statusPublished - 1996 Jan 20

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Science Applications


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