Fast Fuzzy Adaptive Exciting Control for Generator

Abstract

Linear optimal exciting controller in a multivariable generator was proved which could not only remove low-frequency oscillations and sub-synchronization oscillations, but also improve the stability of a transmission system and the dynamic performance of the system. Because this kind of linear time-invariant feedback controller based on a design of certain normal operating point keeps the optimal control effect only on the operating point. If the real operating point moves from the designed certain normal operating point, the control effect will go worse. A new method is proposed in this paper to design a fuzzy reasoning machine. Based on the linear optimal exciting controller, a fast fuzzy adaptive exciting control of the generator is realized. Digital simulating results had shown the improvement of the control performance.