Loss Analysis of High Speed Permanent Magnet Synchronous Motor

Abstract

The research in this paper focuses on the core loss and rotor eddy current loss of high speed permanent magnet synchronous motor. The influence of stator outer diameter on core loss is analyzed. The effects of air gap width, slot width and jacket on rotor eddy current loss are studied. The winding copper loss and air friction loss are calculated and qualitatively analyzed, and the effects of rotor speed, air gap width, temperature and axial wind speed on air friction loss on rotor surface are analyzed. Finally, the loss distribution data are summarized, which provides a reference basis for motor thermal design.