PID CONTROLLER DESIGN FOR DECENTRALIZED TITO PROCESS USING MODIFIED DIFFERENTIAL EVOLUTION ALGORITHM

Jailsingh Bhookya, and Ravi Kumar Jatoth

Keywords

PID Controller Design, TITO System, Multiloop Control, Simplified Decoupling, DE

Abstract

In this paper, a Proportional Integral Derivative (PID) controller design technique for Two-Input-Two-Output (TITO) process is proposed based on pre-defined plant transfer function. To minimize interaction of the multi-loop in Multi-Input-Multi-Output (MIMO) system, a simplified decoupling method is used to have less/minimum interaction of the system between the input and output. The Modified Differential Evolution (MDE) algorithm is to obtain the PID controller gain parameters for TITO system with the specified specification or desired closed loop response by an optimized tuning. The modified DE algorithm can design PID controller, for giving a good time domain specifications, desired response and stability of TITO system. Here, two benchmark cases demonstrate the effectiveness of the technique for PID controller design of TITO process. This PID controller has better improvement of the setpoint tracking and disturbance rejection.

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