短时高过载永磁同步电机电磁热研究  

Electromagnetic Thermal Analysis for Short-Term High-Overload Permanent Magnet Synchronous Motor

作　　者：刘毓希 李立毅[2] 曹继伟[2] 高钦和 孙曌续 Liu Yuxi;Li Liyi;Cao Jiwei;Gao Qinhe;Sun Zhaoxu(Military Key Laboratory for Armament Launch Theory & Technology Rocket Forces Engineering University Xi’ an 710025 China;School of Electrical Engineering and Automation Harbin Institute of Technology Harbin 150001 China)

机构地区：[1]火箭军工程大学兵器发射理论与技术军队重点实验室,西安710025 [2]哈尔滨工业大学电气工程及自动化学院,哈尔滨150001

出　　处：《电工技术学报》2019年第11期2296-2305,共10页Transactions of China Electrotechnical Society

基　　金：伺服驱动及电机测试规范/标准研究与测试平台(2012ZX04001051)资助

摘　　要：短时高过载永磁同步电机广泛应用于航空航天等应用领域,具有高过载倍数、高动态响应和高可靠性等特点。为提高电机的极限转矩输出能力,研究分析了电负荷和磁负荷对电机过载能力的影响以及恒转速条件下绕组匝数对极限功率输出的影响;分析了过载倍数对电机损耗分布规律的影响,并分析了在常温和高温环境下,电机运行工况为长时工作制、短时周期工作制和短时高过载工作制时温升变化情况以及机壳热容量对电机温升分布的影响;最后搭建了不同环境下电机实验平台,通过实验验证了电机在不同环境温度和不同工况下温升变化情况和极限转矩条件下电流的过载倍数情况,实验和仿真分析基本一致,从而验证了理论的正确性,为短时高过载电机的设计提供了一定的理论参考依据。Short-term high-overload permanent magnet synchronous motors with high overload ratio,high dynamic response,and high reliability are widely used in aerospace and other applications.To improve the ability to the maximum torque output of the motor,the effect of magnetic and electric load on the motor of the overload capacity,and winding turns on the output of the extreme power at a constant speed were researched.The influence of the overload times on the loss distribution law of the motor was analyzed.The temperature rises of long-term work at room temperature and high temperature,short-term cycle work and short-term high overload conditions at room temperature,were obtained.The temperature rise of the heat capacity of housing was analyzed.Equipped with a motor experiment platform in different environments,the changes of the temperature rise at different ambient temperatures and at different working conditions was verified and current overload times at extreme torque conditions was tested.As the experimental results are consistent with the simulation,the theory is correct that can be theoretical reference for the short-time high overload motor.

关 键 词：永磁同步电机 极限转矩 短时高过载 动态响应 环境温度 

分 类 号：TM359[电气工程—电机]