To overcome some disadvantages in traditional Inverter Air-Conditioner Controller for railway vehicles

such as limited storage volume

lack of train communication and humdrum speed regulation mode

a new type of Variable-Frequency Control System for Air Conditioning Compressor is developed by choosing MN103SFE4G as its main control chip and using speed sensorless vector control in Permanent Synchronous Compressor.The project design including main circuit

communication circuit

stator current detection

and roto...