多区域变风量空调系统送风温度的优化节能控制

在分析变风量空调系统局部控制的基础上，提出了两种实时的优化控制方案。其一是利用变风量末端风门开度的信号，将它们作为各区域相对负荷的指示信号，对送风温度进行实时优化；其二是针对周边区域采用定风量末端控制太阳辐射热负 空调系统，根据周边区域相对负荷大小，实时优化定风量末端的开／停控制。

On-line Control Strategies of Supply Air Temperature for Multi-Zone VAV Air-Conditioning System

Two on line optimal control strategies were proposed to save energy consumption of multi zone VAV air conditioning system. One is on line optimal reset of supply air temperature set point, which uses the signal of local controller of VAV damper as index of indoor relative load; another is on line optimal on/off control of CAV boxes which are designed for external zones because of solar heat gains. The two strategies were validated by simulation tests under kinds of weather conditions. The results show that comparing with the conventional control strategy, both of them can save energy and maintain indoor thermal comfort. In the part load condition, especially in the condition of low outdoor load, it can not only save the overall energy consumption, but also make indoor air more comfortable.