Abstract
The major problem in the field of control system design is to develop a control design procedure which is simple to implement and reliable in performance for complex control problems. Yet, the design of an effective controller for highly complicated, Non-minimum phase, higher order and unstable system is a challenging problem in the control community. The classical control procedure using PID controller is only effective for ordinary control problems and fails, when it is applied to some complex. In the present work, an algorithm is proposed to calculate the PID parameters. Coefficient Diagram Method (CDM) of controller design has been proposed that keeps a good balance of stability, speed of response and robustness. In this work, a CDM controller is designed and implemented to a fourth order non-minimum unstable system. The results of proposed CDM method depict a better disturbance rejection property, stability and speed of response as compared to the PID controller.
Published Version
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