An Energy-Saving Control Strategy on Central Air-Conditioning System

An energ- saving control strategy based on predictive control for central air-conditioning systems is proposed in this paper.The cold load model is developed to describe the dynamic characteristic s of temperature control systems,and then paraneters in the cold load model and in the central air-conditioning system model are estimated.Generalized predictive control ( GPC ) is used to establish an optimization model to minimize the consumption of energy and the control error of temperature.The simulated amnealing (SA) algorithm.combined with quadratic programming is adopted to solve the optimal problem.Contrasted with the simulation of traditional PID control the results prove the effectiveness of this proposed strategy.