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超高速电机结构设计及建模仿真分析
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Abstract:
本文根据某型空压机性能指标，设计一台功率为12 kW，转速为120,000 r/min的车用超高速电机。首先根据功率和额定转速确定电机的外形尺寸参数，结合高速运转下电机温升、电磁性能、机械强度等多种情况确定电机的定转子结构及材料，并给出了两种绕组形式的电机设计方案，最后用Motor-CAD软件进行参数化建模与多物理场耦合仿真对比，确定本文所提的设计方案。结果表明电机的功率、转矩、磁感线分布、温升以及效率均符合要求，该超高速电机设计合理。
According to the performance index of a certain type of air compressor, this paper designs an ultra-high-speed motor for vehicles with a power of 12 kW and a speed of 120,000 r/min. Firstly, the external dimension parameters of the motor are determined according to the power and rated speed, and the stator and rotor structure and materials of the motor are determined according to the temperature rise, electromagnetic performance, mechanical strength of the motor under high-speed operation, and the design of the motor with two types of windings is given. Finally, the parametric modeling and multi-physics coupling simulation are compared with Motor-CAD software, and the design scheme proposed in this paper is determined. The results show that the power, torque, magnetic field line distribution, temperature rise and efficiency of the motor all meet the requirements, and the design of the ultra-high-speed motor is reasonable.
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