变风量空调系统静压设定值重置方法及控制策略研究

Static pressure set point resetting method and control strategy in VAV systems

分析了已有的变风量空调系统送风机控制方法,提出了基于实测主风管风量的静压设定值重置方法。在小型变风量系统实验室中分别进行了定静压法和静压重置法实验,比较了两种控制方法。针对实验室实验的局限性,在仿真平台上进行了一系列的仿真实验。最后从系统稳定性、风机节能潜力以及适用范围等方面评价了静压重置法。

Analyses the existing control methods of supply fans for VAV system, and puts forward a static pressure resetting method based on the air flow rate measured in the main supply air duct. Performs tests with the fixed static pressure method and static pressure resetting method in a small VAV system laboratory, and compares the two control methods. Considering the limitation of laboratory study, performs a series of simulation tests on a simulation platform. Evaluates static pressure resetting control method from aspects of system stability, energy saving potential of fan and application range.