Analytical model of no-load axial force for electric propulsion conical motor in electric aircraft

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-11-14 DOI:10.1049/elp2.12392

Yukun Fan, Peixin Liang, Lihao Liang, Dian Zhang, Weiguo Liu, Xiaoke Zhang

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Abstract

In the field of electric aircraft, the axial force of the conical motor is used to offset propeller thrust and reduce bearing wear. For the problem of accurate calculation of the no-load axial force of the conical motor, combined with the characteristics that the rotor magnetic bridge of the hybrid conical inner-mounted permanent magnet synchronous motor (HC-IPMSM) is easy to be saturated and difficult to be calculated analytically, an equivalent analytical calculation method is proposed. According to the principle of constant air-gap magnetic flux, the HC-IPMSM is equivalent to many cylindrical surface-mounted permanent magnet synchronous motors (CY-SPMSM), and an analytical model is gained. Combining with the scalar magnetic potential Laplace equation and Poisson equation, the air-gap flux density distribution on the rotor surface is calculated. And finally, the no-load axial force of the motor is obtained by using the cone angle and the Maxwell stress method. Simulation and experiments verify the correctness and validity of the analytical model.

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电动飞机锥形电机空载轴向力分析模型

在电动飞机领域，锥形电机的轴向力用于抵消螺旋桨推力和减少轴承磨损。针对锥形电机空载轴向力的精确计算问题，结合混合式锥形内装永磁同步电机（HC-IPMSM）转子磁桥易饱和、难以解析计算的特点，提出了一种等效解析计算方法。根据气隙磁通恒定的原理，HC-IPMSM 等同于许多圆柱形表面安装永磁同步电机（CY-SPMSM），并得到了一个解析模型。结合标量磁势拉普拉斯方程和泊松方程，计算了转子表面的气隙磁通密度分布。最后，利用锥角和麦克斯韦应力法获得了电机的空载轴向力。仿真和实验验证了分析模型的正确性和有效性。

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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.