The optimal control strategy for chilled water system in central air-conditioning systems

In this paper, Simulink model is built to simulate the chilled water system of a real building. The optimal chilled water flow rate and chilled water supply temperature are found out by traversing the constrained parameter values under different working conditions. The simple optimal control rules are developed based on the optimal solutions. Optimal control rules can reduce the total energy consumption of the chillers, chilled water pumps, and air handling units by 17.55% compared with tradition control.