Intelligent Engineering Systems through Artificial Neural Networks, Volume 16
111 A Design Method of Modified PID Conteroller for Unstable Plants
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In this paper, we examine a design method of modified PID (Proportional-Integral-Derivative) controllers for unstable plants. PID controller structure is the most widely used one in industrial applications. If there exists a stabilizing PID controller, the parametrization of all stabilizing PID controller has been considered. However no method has been published to guarantee the stability of PID control system for any unstable plants and the admissible sets of P-parameter, I-parameter and D-parameter to guarantee the stability of PID control system are independent each other. In this paper, we propose a design method of modified PID controllers such that the modified...