高速非晶合金永磁电机设计受电磁、机械、温升的制约,因此高速非晶合金永磁电机的设计是一个多物理场综合设计的过程。针对高速非晶合金永磁电机设计受多物理场制约的问题,基于多物理场的分析方法,分析了非晶合金材料对高速永磁电机电磁性能的影响；研究了内置式永磁转子在高速运行状态下的应力分布,并分析了轴承支撑刚度对转子系统临界转速的影响；针对高速非晶合金永磁电机损耗分布特点研究了其温度场的分布。基于提出的多物理场综合设计方法,设计并制造了一台额定功率15 kW、最高转速30 000 r/min的高速内置式非晶合金永磁电机,并对样机进行了试验,验证了仿真分析与设计方法的可行性,为高速非晶合金永磁电机的设计提供参考。

Due to the constraints of electromagnetic, mechanical and thermal, the design of highspeed permanent magnet motor with amorphous alloy core is an integrated process. Based on the method of multiphysics analysis, the influence of amorphous alloy to the motor was analyzed, the stress distribution of interior permanent magnet rotor was studied. Also, the influence of bearing stiffness for critical speed of rotor system was analyzed. In consider of the distribution of loss, thermal analysis was shown. Based on the method of integrated design, a highspeed permanent magnet motor with amorphous alloy core rated as 15 kW, 30 000 r/min was designed and fabricated. Through the test of the motor, the multiphysics field analysis and integrated design was proved feasible and the theory for the design of highspeed permanent magnet motor with amorphous alloy core was provided.

TM 351

国家自然科学基金项目(51307111)；国家科技支撑计划(2013BAE08B00)；辽宁省教育厅科学技术研究项目(L2013049)