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.
|Number of pages||21|
|Journal||International Journal of Control|
|Publication status||Published - 1996 Jan 20|
ASJC Scopus subject areas
- Control and Systems Engineering
- Computer Science Applications