为了实现区域供冷系统的冷量传递与末端温度调节，建立了冷量经一个二级冷 量交换站由水系统向风系统传递的理论模型，并结合房间内的温度动态变化模型，推导出 了水系统一次侧流量与空调末端房间温度的传递函数． 采用水系统一次侧变水量与空调 末端变风量结合的技术，根据冷负荷变化，分别采用PI 控制器和PID 控制器实时调整水 泵与风机的转速，并对风机与水泵进行能耗建模与节能分析，以实现空调房内温度的控制 与电量的节约目的． 最后通过Simulink 软件仿真，给出了空调房内温度、水泵转速、水流 量、节能量等参数变化的示意图，展示了文中节能控制方法的有效性．

In order to realize the cold transmitting and terminal temperature adjusting of district cooling systems,a transitive theoretical model of the cold from a water system to an air system by a two-stage cooling exchange station is constructed,and by combining a dynamic change model of indoor temperature,a transfer function from the volume of the water-system primary side to the indoor temperature of the air conditioning terminal is derived.Then,the technology integrating the variable water volume (VWV) of the water-system primary side with the variable air volume (VAV) of the air conditioning terminal is applied,and according to the change of cold load,the PI and PID controllers are respectively employed to adjust the speed of pumps and fans in real-time.Moreover,the energyconsumption modeling and energy-saving analysis of the fans and the pumps are performed,so as to control the indoor temperature and save the electric quantity.Finally,by using the Simulink software,the schematic diagrams of the variation of such parameters as the indoor temperature,the pump speed,the water volume,and the energy-saving quantity are put forward,and the effectiveness of the above energy-saving control method is exhibited.