자기조정 퍼지제어기를 이용한 SVC계통의 안정화 장치의 설계

• Published in: 전기학회논문지 P Vol. 51P; no. 2; pp. 60 - 67
• Main Authors: 朱碩珉(Seok-Min Joo), 許東烈(Dong-Ryol Hur), 金海在(Hai-Jai Kim)
• Format: Journal Article
• Language: Korean
• Published: 대한전기학회 2002
• Subjects: Fuzzy Logic Controller(FLC); Static Var Compensator(SVC); Self-Tuning Fuzzy Controller(STF); Power System Stabilization(PSS); Steepest Decent Method
• ISSN: 1229-800X; 2586-7792

This paper presents a control approach for designing a self tuning fuzzy controller for a synchronous generator excitation and SVC system. A combination of thyristor-controlled reactors and fixed capacitors (TCR-FC) type SVC is recognized as having the most flexible control and high speed response, which has been widely utilized in power systems, is considered and designed to improve the response of a synchronous generator, as well as controlling the system voltage. The proposed parameter self tuning algorithm of fuzzy controller is based on the steepest decent method using two direction vectors which make error between inference values of fuzzy controller and output values of the specially selected PSS reduce steepestly. Using input-output data pair obtained from PSS, the parameters in antecedent part and in consequent part of fuzzy inference rules are learned and tuned automatically using the proposed steepest decent method. The related simulation results show that the proposed fuzzy controller is more powerful than the conventional ones.