CONTROL METHOD FOR AIR-COOLED MAGNETIC SUSPENSION UNIT

摘要

Disclosed is a control method for an air-cooled magnetic suspension unit, belonging to the technical field of air conditioning units. The control method comprises: first starting a portion of fixed frequency fans during a starting stage of the unit; obtaining a pressure ratio of the unit; and optionally starting non-operating fixed frequency fans according to the pressure ratio of the unit. The control method can enable the unit to operate more stably, especially in a low temperature environment, and can prevent the unit from failure and shutdown due to a small pressure ratio. Compared with air-cooled magnetic suspension units having multiple variable frequency fans, the cost of the present air-cooled magnetic suspension unit and later maintenance costs are lower.