Jailsingh Bhookya and Ravi Kumar Jatoth
PID controller design, TITO system, multiloop control, simplified decoupling, DE, MDE
In this paper, a proportional integral derivative (PID) controller design technique for the two-input–two-output (TITO) process is proposed based on the pre-defined plant transfer function. To minimize interaction of the multi-loop in the multi-input–multioutput (MIMO) system, a simplified decoupling method is used to have less/minimum interaction of the system between the input and the output. The modified differential evolution (MDE) algorithm is used to obtain the PID controller gain parameters for the TITO system with the specified specification or the desired closed-loop response by an optimized tuning. The MDE algorithm can design a PID controller for giving good time domain specifications, desired response and stability of the TITO system. Here, two benchmark cases demonstrate the effectiveness of the technique for the PID controller design of the TITO process. This PID controller has better improvement of the setpoint tracking and disturbance rejection.
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