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A Study on the Performance Improvement of a Nonlinear Fuzzy PID Controller  

김인환 (진주산업대학교 기계공학과)
이병결 (한국해양대학교 대학원 제어계측공학과)
김종화 (한국해양대학교 기계ㆍ정보공학부)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.27, no.7, 2003 , pp. 852-861 More about this Journal
Abstract
In this paper, in order to improve the disadvantages of the fixed design-parameter fuzzy PID controller. a new fuzzy PID controller named a variable design-parameter fuzzy PID controller is suggested. The main characteristic of the suggested controller is to adjust design-parameters of the controller by comparing magnitudes between fuzzy controller inputs at each sampling time when controller inputs are measured. As a result. all fuzzy input partitioned spaces converge within a time-varying normalization scale. and the resultant PID control action can always be applied precisely regardless of operating input magnitudes. In order to verify the effectiveness of the suggested controller. several a computer simulations for a nonlinear system are executed and the control parameters of the variable design-parameter fuzzy PID controller are throughly analyzed.
Keywords
Nonlinear Control; Fuzzy Control; Fuzzy PID Controller;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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