Title :
A U-model Enhanced PID Controller for Nonlinear Dynamic Plants
Author :
Zhu, Q.M. ; Ma, Z.
Author_Institution :
Fac. of Comput., Eng. & Math. Sci., West of England Univ., Bristol
Abstract :
In this study U-model, a control-oriented prototype, is proposed to represent a wide range of linear and nonlinear dynamic plants. Immediately the merit of the model structure for designing PID controllers is considered in dealing with nonlinear dynamic plants. Mathematically the final solution of the controller output is converted into resolving a polynomial equation in current control term u(t - 1) which significantly reduces the difficulties encountered in nonlinear control system synthesis and computational complexities. The integrated procedure provides a straightforward methodology to use linear control system design techniques to shape up nonlinear control systems. An illustrative example is selected to demonstrate the design procedure and its effectiveness
Keywords :
computational complexity; control system synthesis; linear systems; nonlinear control systems; nonlinear dynamical systems; three-term control; PID controller; U-model; computational complexities; control-oriented prototype; linear control system design techniques; linear dynamic plants; nonlinear control system synthesis; nonlinear dynamic plants; polynomial equation; Computational complexity; Control system synthesis; Current control; Nonlinear control systems; Nonlinear dynamical systems; Nonlinear equations; Polynomials; Prototypes; Shape control; Three-term control; Non-linear control systems; PID control; Pole placement; control oriented plant models;
Conference_Titel :
Intelligent Control and Automation, 2006. WCICA 2006. The Sixth World Congress on
Conference_Location :
Dalian
Print_ISBN :
1-4244-0332-4
DOI :
10.1109/WCICA.2006.1712500
