| Title |
A Design of Optimal PI Controller of SVC System using Genetic Algorithms |
| Authors |
정형환(Jeong, Hyeong-Hwan) ; 허동렬(Heo, Dong-Ryeol) ; 왕용필(Wang, Yong-Pil) ; 한길만(Han, Gil-Man) ; 김해재(Kim, Hae-Jae) |
| Keywords |
Flexible AC Transmission System(FACTS) ; Genetic Algorithm(GA) ; Optimal PI Controller ; Static VAR Compensator(SVC) |
| Abstract |
This paper deals with a systematic approach to GA-PI controller design for static VAR compensator(SVC) using genetic algorithms(GAs) which are search algorithms based on the mechanics of natural of natural selection and natural genetics, to improve system stability. A SVC, one of the Flexible AC Transmission System(FACTS), constructed by a fixed capacitor(FC) and a thyristor controlled reactor(TCR), is designed and implemented to improve the damping of a synchronous generator, as well as controlling the system voltage. To verify the robustness of the proposed method, considered dynamic response of generator used deviation and generator terminal voltage by applying a power fluctuation and three-phase fault at heavy load, normal load and light load. Thus, we proved usefulness of GA-PI controller design to improve the stability of single machine-infinite bus with SVC system. |