Abstract
The influences of electromagnetic force with high order on electromagnetic vibration of permanent magnet motor are analyzed by using teeth chopping effect. First, the amplitudes, orders and frequencies of the electromagnetic forces are calculated by using the Maxwell stress tensor method. Then, the teeth chopping effect is introduced to describe the principle of low-mode vibration caused the high-order force. Next, the radial forces of three prototype motors are simulated and compared in detail, and the teeth chopping effect is validated by using the finite element method. Finally, the no-load electromagnetic vibration test is carried out on a 6p/36s permanent magnet motor, and test results are agreement with the simulation results. The results show that the high-order forces can cause the low-mode electromagnetic vibration with a non-negligible amplitude, and the research will provide the idea for the accurate vibration prediction and vibration reduction of the slotted permanent magnet motor.
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This work was supported in part by the National Natural Science Funds of China under Grant 52007091.
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Hong, J., Wang, S., Sun, Y., Cao, H. (2022). The Study of High-Order Force on Electromagnetic Vibration of PMSMs. In: Yang, Q., Liang, X., Li, Y., He, J. (eds) The proceedings of the 16th Annual Conference of China Electrotechnical Society. Lecture Notes in Electrical Engineering, vol 889. Springer, Singapore. https://doi.org/10.1007/978-981-19-1528-4_48
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DOI: https://doi.org/10.1007/978-981-19-1528-4_48
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