퍼지이론을 적용한 전력계통안정화 장치 설계

Design of Power System Stabilizer applying fuzzy theory

The problem of small-signal stability is usually one of insufficient damping of system oscillations. The use of power system stabilizers to control generator excitation system os the most cost effective method of enhancing the small-signal stability of power system. This paper presents the fuzzy type stabilizing controller to damp out the sustained oscillation, which is observed in normal operation. through the comparative simulation with PI type power stabilizer under various system operating condition, the efficiency of fuzzy stabilizing controller with respect to nonlinear power system is verified.