Decentralized Active Disturbance Rejection Control for the Benchmark Refrigeration System

Abstract In this paper, decentralized linear active disturbance rejection control (LADRC) method is applied to the benchmark refrigeration system presented at the 3 rd IFAC Conference on Advances in Proportional-Integral-Derivative Control (PID18). Two second-order LADRCs are tuned by trial and error without the knowledge of the benchmark refrigeration system. To overcome the saturation of the actuators, an anti-windup scheme for LADRC is adopted. Simulation results show that LADRC technique is simple to apply in practice and can achieve good performance compared with the given PID controllers for the benchmark system.