电工技术学报  2017, Vol. 32 Issue (2): 125-134    DOI:
电机与电器 |
高过载永磁同步电机的电磁特性
1. 哈尔滨工业大学电气工程及自动化学院 哈尔滨 150001;
2. 中国运载火箭技术研究院 北京 100076
Electromagnetic Characteristics on High Overload Permanent Magnet Synchronous Motor
Li Liyi1, Zhang Jiangpeng1, Yan Haiyuan2, Yu Jikun1
1. School of Electrical Engineering and Automation Harbin Institute of Technology Harbin 150001 China;
2. The China Academy of Launch Vehicle Technology Beijing 100076 China
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摘要 定子铁心饱和、电枢反应限制了永磁同步电机(PMSM)输出转矩的进一步提高,在一些应用场合电机的转矩密度无法满足需求。研究了永磁同步电机的转矩特性,提高了恒转速下的转矩过载能力。首先从PMSM的输出功率入手,分析PMSM的极限输出功率与输入电流、直交轴电抗和空载反电动势的关系。接着通过改变PMSM定子和转子结构参数,分析了不同槽、极比对电机转矩过载的影响;磁钢厚度对气隙磁密以及直交轴电感的影响;定子裂比对电机电磁转矩的影响;不同齿宽对电机输出转矩的影响。由此得到高过载永磁电机的设计方法。最后进行有限元分析和电磁设计,并研制了一台10倍转矩过载的PMSM。搭建了测功机实验平台,对比测试了高过载电机以及常规设计PMSM的电阻、电感与转矩-电流特性曲线。实验分析结果与有限元计算结果基本一致,验证了理论分析的正确性。
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李立毅
张江鹏
闫海媛
于吉坤
关键词 永磁同步电机高过载电枢反应结构参数电磁特性    
Abstract:The stator core saturation and armature reaction restrict the permanent magnet synchronous motor (PMSM) to improve the output torque, which is unable to meet the demand in some applications. In this article, the torque overload ability of PMSM was enhanced. Firstly, according to the output power of the PMSM, the contributions of phase current, d-axis reactance and no-load back EMF to the output power were analyzed. Secondly, by changing the stator and rotor structural parameters, the influence of the slot/pole combination, magnets depth, stator split-ratio and stator tooth width on the output torque was analyzed. The design method of high overload PM motor is obtained. Finally, the finite element analyses and electromagnetic design were carried out, and a PMSM with 10 times torque-overload ability was developed. With the dynamometer test platform, the resistance, inductance and torque-current curves of the high torque-overload motor and the conventional motor were tested and compared. The experimental results verified the correctness of the theory.
Key wordsPermanent    magnet    synchronous    motor    high    overload    armature    reaction    structural    parameters    electromagnetic    characteristic   
收稿日期: 2015-03-10      出版日期: 2017-02-08
PACS: TM351  
基金资助:国家杰出青年科学基金资助项目(51225702)
作者简介: 李立毅 男,1968年生,教授,博士生导师,研究方向为特种电机。E-mail: liliyi@hit.edu.cn(通信作者);张江鹏 男,1985年生,博士研究生,研究方向为高效率高功率密度电机系统。E-mail: jpzhang.hit@163.com
引用本文:   
李立毅,张江鹏, 闫海媛, 于吉坤. 高过载永磁同步电机的电磁特性[J]. 电工技术学报, 2017, 32(2): 125-134. Li Liyi, Zhang Jiangpeng, Yan Haiyuan, Yu Jikun. Electromagnetic Characteristics on High Overload Permanent Magnet Synchronous Motor. Transactions of China Electrotechnical Society, 2017, 32(2): 125-134.
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https://dgjsxb.ces-transaction.com/CN/Y2017/V32/I2/125