Design of the Power System Stabilizer Using Parallel Structured Fuzzy Adaptive Controller

병렬형 구조의 적응 퍼지 제어기를 이용한 전력계통 안정화 장치의 설계

In this paper, using a new adaptive fuzzy controller we have designed a power system stabilizer. The adaptive fuzzy controller constitutes of several parallel fuzzy controller. Each of them can maintain the robust stability for a specified parametric uncertainty region. If the parametric variation is so large that a rule-base cannot cope with that parametric region, the other appropriate rule-base is selected to control. Applying adaptive fuzzy controller to single machine infinite bus system, we simulate the stability of the system and compare the performance with conventional PSS controller.