双联变频空调系统的动态特性研究

Research on the Transient Performance of the Double-Evaporator VRV Air Conditioner

通过引入空泡系数模型方程 ,应用守恒原理 ,建立起以蒸发器、电子膨胀阀、压缩机为一体的双联空调系统的动态分布参数数学模型 ;通过仿真计算对一拖二系统随变频压缩机转速、电子膨胀阀开度以及回风风机转速改变的动态特性进行研究分析 ;为系统的实时控制打下基础。

With an void fraction model equation adopted and conservation priciple applied, an unsteady distributed-parameter mathematical model based on two-phased theory, which can predict the transient performance of the system, is established. The dynamic response to the step change of inverter-aided compressor speed, opening of the EEV and air fan speed is studied.