대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2000년도 추계학술대회 논문집 학회본부 D
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- Pages.650-652
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- 2000
비선형 시스템을 위한 퍼지 PID 제어기의 설계 및 해석
Design and Analysis of Fuzzy PID Control for Nonlinear System
- Kim, Sung-Ho (Dept of Electrical Engineering, Kangwon National Univ.) ;
- Lee, Cheul-Heui (Dept of Electrical Engineering, Kangwon National Univ.)
- 발행 : 2000.11.25
초록
Although Fuzzy Logic Controller(FLC) adopted three terms as input gives better performance. FLC is in general composed of two-term control because of the difficulty in the construction of fuzzy rule base. In this paper, a three-term FLC which is similar to PID control but acts as a nonlinear controller is proposed. To reduce the complexity of the rule base design and increase efficiency, a simplified fuzzy PID control is induced from a hybrid velocity/position type PID algorithm by sharing a common rule base for both fuzzy Pi and fuzzy PD parts. It is simple in structure, easy in implementation, and fast in calculation. The phase plane technique is applied to obtain the rule base for fuzzy two-term control and them. The resultant rule base is Macvicar-Whelan type. The frequency response information is used in tuning of membership functions. Also a tuning strategy for the scaling factors is Proposed based on the relationship between PID gain and them. Simulation results show better performance and the effectiveness of the proposed method.
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