基于群体热感觉和区域占用率的多区域变风量空调系统优化控制方法

Optimal control method for multi-area VAV air conditioning systemsbased on group thermal sensation and area occupancy rate

为优化多区域变风量空调系统的控制性能,同时使室内环境满足人员的热舒适需求,提出了一种基于群体热感觉和区域占用率的多区域变风量空调系统优化控制方法。根据室内人员的群体热感觉和各区域内的人员数量,采用调控算法调整室温设定值,进而调整各控制区域的末端送风量。搭建了仿真平台,对该控制方法与传统控制方法从控制效果、人员热舒适性、空调系统能耗等方面进行了对比分析。研究结果表明:加入群体热感觉后,该控制方法相较于传统控制方法空调系统节能率为7.5%以上;若同时考虑群体热感觉和区域占用率,该控制方法的节能率高于8.5%。

To optimize the control performance of multi-area variable air volume(VAV)air conditioning systems and make the indoor environment meet the thermal comfort needs of personnel,an optimal control method for multi-area VAV air conditioning systems based on group thermal sensation and area occupancy rate is proposed.According to the group thermal sensation of indoor personnel and the number of personnel in each area,the control algorithm is used to adjust the setting value of room temperature,and then adjust the terminal air supply volume of each controlled area.A simulation platform is built,and the proposed control method is compared with the traditional control method from the aspects of control effect,thermal comfort of personnel and energy consumption of air conditioning systems.The results show that after adding the group thermal sensation,the energy-saving rate of this control method is more than 7.5%compared with that of the traditional control method.If both the group thermal sensation and the area occupancy rate are taken into account,the energy-saving rate of this control method is higher than 8.5%.