Modeling and active disturbance rejection control of a single effect LiBr-H2O absorption chiller

摘要

In this paper, a dynamic model of a single effect LiBr-H₂O absorption chiller has been developed to explore the transient characteristics for the purpose of control design. Dynamic performance of the absorption chiller is tested to determine an appropriate control strategy. Active disturbance rejection control (ADRC) is implemented to achieve cooling capacity control and disturbance rejection. Comparison with conventional PID control shows that ADRC delivers better performance when different disturbances occur.