Heating Control Strategy of VRF with Digital Scroll Compressor

Abstract

A 10HP variable refrigerant flowrate air conditioning system(VRF AC) with digital scroll compressor was developed.Based on the unstable running characteristics of the VRF AC,the new control strategy including the control model of compressor output ratio and control measure of switching between compressors has been proposed.In the control model of compressor output ratio,the average value of discharge pressures in an adjustment period is used as the current discharge pressure to regulate the output capacity ..