Optimal tracking control for a peltier refrigeration system based on PSO

Peltier refrigeration system is a typical nonlinear control affine system with unknown bounded perturbations. An optimal tracking control scheme based on PSO is proposed for the refrigeration system. Firstly, the mathematical model of the Peltier refrigeration system is built. Secondly, operator-based robust controller is designed to ensure robust stability of the system by using robust right coprime factorization method. Then, a tracking compensator operator is presented by using PSO (Particle Swarm Optimization) method to satisfy the tracking performance of the system. Finally, numerical simulation and experimental results are given to confirm the effectiveness of the proposed approach.