Independent Controller Design for Non-minimum Phase Two Variable Process with Time Delay

Abstract

Non-minimum phase (NMP) second order with time delay Process (SOPTDP) are stabilized by tuning process. Certain restrictions on the attainable performance when system have right hand side zeros of s-plane. The PID controller had been designed by Enhanced IMC method. The proposed Proportional Integral and Derivative controller (PID) are implemented to non-minimum phase systems like Fermenter, Isothermal CSTR. The performance was analysed under model uncertainty and considering perturbations in one model parameter. The performance of the system under recommend method compare with the existing method in the literature. From the performance detected as present Approach effectively stabilize and advances the performance of process with disturbances. From simulated result of three examples demonstrates present work offers better-quality presentation of the set-point track and Hload rejection than existing method through better time domain specifications.