Comparative study of a high-speed permanent magnet motor when powered by different methods

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-05-20 DOI:10.1049/elp2.12449

Zhenning Qi, Yue Zhang

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Abstract

The authors present the multi-physical field performances comparative research for a 30 kW, 30,000 r/min high-speed permanent magnet motor (HSPMM) when the motor is powered by the sinusoidal pulse width modulation (SPWM) voltage inverter and sinusoidal voltage source, respectively. Firstly, electromagnetic performances including torque, voltage and current of the HSPMM with different driving methods are compared and analysed by the finite element method (FEM). Considering the effects of high operation frequency, power losses of the HSPMM with different driving methods under full-load conditions are calculated and compared with the skin effect and the proximity effect considered for HSPMM winding copper loss estimation. Based on the above analysis, a prototype driven by the SPWM voltage inverter is manufactured, with its electromagnetic and thermal performances tested and verified. In addition, several influencing factors of the HSPMM rotor eddy current loss are studied, with their effects on the HSPMM under different driving methods further analysed and compared as well. A novel equivalent power supply method is proposed to effectively save the calculation time with a negligible error. Finally, in order to further improve the heat dissipation capacity of the HSPMM, a novel cooling method is intensively studied with its influencing factors further analysed. The cooling effect of the novel cooling method and the temperature of the motor components are verified and calculated by the computational fluid dynamics (CFD) method.

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采用不同方法驱动高速永磁电机的比较研究

作者介绍了分别采用正弦脉宽调制（SPWM）电压逆变器和正弦电压源供电的 30 kW、30,000 r/min 高速永磁电机（HSPMM）的多物理场性能比较研究。首先，通过有限元法（FEM）比较和分析了不同驱动方式下高速永磁电机的电磁性能，包括转矩、电压和电流。考虑到高工作频率的影响，计算了采用不同驱动方法的 HSPMM 在满载条件下的功率损耗，并与 HSPMM 绕组铜损估算中考虑的趋肤效应和邻近效应进行了比较。在上述分析的基础上，制造了由 SPWM 电压逆变器驱动的原型，并对其电磁和热性能进行了测试和验证。此外，还研究了 HSPMM 转子涡流损耗的几个影响因素，并进一步分析和比较了这些因素在不同驱动方法下对 HSPMM 的影响。提出了一种新型等效电源方法，可有效节省计算时间，且误差可忽略不计。最后，为了进一步提高 HSPMM 的散热能力，深入研究了一种新型冷却方法，并进一步分析了其影响因素。通过计算流体动力学（CFD）方法验证和计算了新型冷却方法的冷却效果和电机部件的温度。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.