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원태현,황기현,문경준,이용길 동의공업대학 2000 論文集 Vol.26 No.1
We propose an adaptive Tabu search method changing neighbor solution's range to be searched each iteration according to an objective function and design a PI controller using the proposed Tabu search. We apply it to a time-delay system to evaluate the usefulness of the proposed method. overshoot, rising time, and settling time.
원태현,김문수,이용길,강석규 동의공업대학 2000 論文集 Vol.26 No.1
In this paper, a new approach to modeling of static and dynamic systems using clustering techniques. To express the various and complex behavior of systems, we combine multiple model method. The Gustafson-Kessel algorithm is used in partitioning of system, and Takaei Sugeno rule structure is adopted to form the fuzzy rules. According to simulation, the performance of fuzzy modeling technique is evaulated.
원태현,이용길,손태훈 동의공업대학 1998 論文集 Vol.24 No.1
In this paper, an induction motor control system is used with the indirect vector control method and a modified fuzzy PID control. The fuzzy control scheme consists of a fuzzy PID control and sliding mode control. This control scheme solves the problem of robustness loss during the reaching phase that conventional VSC strategy. The usefulness of this proposed control method shows good steady state characteristics and robust dynamic behavior.