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

 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.