Research On Variable Frequency Drive Applying In Centralised Air Conditioning System

Centralised air conditioning chilled water system and air system should select variable frequency drive technology correctly and reasonably, which is of positive significance for reducing the energy consumption of air conditioning system. Discusses variable frequency technology applying in four types of air conditioning system which are not clearly defined by national standard. Analyzes the rationality of variable frequency technology applying in reconstruction projects, puts forward some new concepts of static VFD and dynamic VFD, analyzes these two kinds of variable frequency technology applying in correct reconstruction and variable flow reconstruction projects. Compares with variable frequency drive and other methods of frequency conversion transformation, think that should not be all choose variable frequency drive, advocates of variable flow reconstruction as far as possible, to achieve better energy saving effect.