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

비선형 퍼지 PID 제어기의 성능 개선에 관한 연구

  • 김인환 (진주산업대학교 기계공학과) ;
  • 이병결 (한국해양대학교 대학원 제어계측공학과) ;
  • 김종화 (한국해양대학교 기계ㆍ정보공학부)
  • Published : 2003.11.01


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.


  1. Stable Adaptive Systems Kumpati S. Narendra;Anuradha M. Annaswamy
  2. IEEE. Trans. on Systems, Man, and Cybernetics v.SMC-15 Fuzzy Identification of Systems and Its Applications to Modeling and Control T.Tagaki;M.Sugeno
  3. Automatica v.26 no.3 Fuzzy Control Theory : A Nonlinear Case Hao Ying;William Siler;James J. Buckley
  4. 한국퍼지 및 지능 시스템학회 논문지 v.5 no.4 A Suggestion of Nonlinear Fuzzy PID Controller to Improve Transient Responses of Nonlinear or Uncertain Systems JongHwa Kim
  5. Adaptive Fuzzy Systems and Control : Design and Stability Analysis Li-Xin Wang
  6. IEEE Trans. on Systems. Man, and Cybernetics v.20 no.2 Fuzzy Logic in Control Systems Chuen Chien Lee
  7. Information Sciences v.123 Fuzzy PID controller James Carvajal;Guanrong Chen;Haluk Ogmen
  8. Automatica v.29 no.2 A Nonlinear Fuzzy Controller Linear Control Rules is The Sum of a Global Two-dimensional Multilevel Relay and a Local Nonlinear Proportional-integral Contoller Hao Ying