비선형 시스템 제어를 위한 퍼지 PID 제어기의 설계 및 해석

• 영문명: Design and Analysis of Fuzzy PID Controller for Control of Nonlinear System
• 발행기관: 강원대학교 산업기술연구소
• 저자명: 이철희(Lee Chul Heui) 김성호(Kim Sung Ho)
• 간행물 정보: 『산업기술연구』vol.20, 1~8쪽, 전체 8쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2000.09.30

영문 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 to 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 the resultant rule base is Macvicar-Whelan type. And the membership function is a Gaussian function. The frequency response information is used in tuning of the membership functions. Also a tuning strategy for the scaling factors is proposed based on the relationship between PID gain and the scaling factors. Simulation results show better performance and the effectiveness of the proposed method.

목차

Abstract

1. 서론

2. 퍼지 PID 제어기의 구조

3. 주파수 응답을 이용한 제어기 동조

4. 모의 실험

5. 결론

참고문헌

키워드

퍼지 PID 제어기 주파수 응답 Fuzzy PID Controller Frequency Response