Design Of Optimal Disturbance Rejection Controller For CSTR Using Particle Swarm Optimization
This paper proposes design methodology for a disturbance rejection optimal PID controller for Continuous stirred tank reactor (CSTR), posing the controller design problem as optimization problem and, then, solving it using particle swarm optimization algorithm (PSO). The performance index to be minimized is the H2 - norm of the tracking error and constraint is the frequency domain performance of disturbance rejection. The problem boils down to the minimization of H2 performance index under the inequality constraint of H∞ norm of closed loop transfer function. The PSO is used to solve the constrained optimization problem.
Keywords- Disturbance rejection controller, CSTR, PID. Particle swarm optimization, global optimization, optimal