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http://dx.doi.org/10.5302/J.ICROS.2006.12.3.221

A New Design of Fuzzy controller for HVDC system with the aid of GAs  

Wang Zhong-Xian (원광대학교 제어계측공학과)
Yang Jueng-Je (원광대학교 제어계측공학과)
Rho Seok-Beom (원광대학교 제어계측공학과)
Ahn Tae-Chon (원광대학교 전기전자및정보공학부)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.12, no.3, 2006 , pp. 221-226 More about this Journal
Abstract
In this paper, we study an approach to design a Fuzzy PI controller in HVDC(High Voltage Direct Current) system. In the rectifier of traditional HVDC system, turning on, turning off, triggering and protections of thyristors have lots of problems that can make the dynamic instability and cannot damp the dynamic disturbance efficiently. In order to solve the above problems, we adapt Fuzzy PI controller for the fire angle control of rectifier. The performance of the Fuzzy PI controller is sensitive to the variety of scaling factors. The design procedure dwells on the use of evolutionary computing(Genetic Algorithms, GAs). Then we can obtain factors of the Fuzzy PI controller by Genetic Algorithms. A comparative study has been performed between Fuzzy PI controller and traditional PI controller, to prove the superiority of the proposed scheme.
Keywords
fuzzy PI and PI controllers; HVDC system; Genetic Algorithms(GAs); simulation;
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