Measurement of Magnet Losses in a Surface Mounted Permanent Magnet Synchronous Machine
作者： Adam C. Malloy , Ricardo F. Martinez-Botas , Michael Lamperth
关键词: Harmonic 、 Voltage 、 Electrical engineering 、 Magnetomotive force 、 Waveform 、 Acoustics 、 Magnet 、 Electropermanent magnet 、 Permanent magnet synchronous generator 、 DC-BUS 、 Materials science
摘要: Magnet losses in permanent magnet synchronous machines (PMSMs) decrease efficiency and increase thermal loading. This paper presents a measurement technique for measuring the PMSMs. Losses were determined by initial temperature rise rate of magnets. Measurement was achieved via calibration relating to voltage constant. Measurements made on an inverter driven axial flux PMSM at number different operating points. The results used validate finite-element analysis, which decomposed total loss into component parts based source variation analysis showed that although magnetomotive force (MMF) induced increased with current loading, harmonic content waveform decreased, leading only small changes loss. dc bus voltages; 60% 32%.
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