Multi-objective Optimization and Performance Analysis of Dual-Rotor Hub Motor Based on Comprehensive Sensitivity Stratification

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-04-18 DOI:10.1007/s12239-024-00084-w

Junmin Li, Ren He, Wenguang Guo, Yibo Wang, Hongxuan Sun

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引用次数: 0

Abstract

To solve the shortcomings of the existing hub motors in the practical application of electric vehicles, an integrated dual-rotor hub motor (DRHM) was proposed, which can realize multiple drive modes to adapt to the vehicle's variable driving conditions. Aiming at the complex structure of the DRHM, a multi-objective optimization method of design variables stratification based on comprehensive sensitivity was proposed. The design variables with medium and high sensitivity were optimized by the response surface method and genetic algorithm, respectively. After overall weighing the optimization objectives of output torque, torque ripple, usage amount of permanent magnets and magnetic coupling coefficient, three candidate design were screened out. By the comprehensive performance evaluation of the motor, the optimal structural sizes were determined. Based on a two-dimensional model, the electromagnetic performances of the DRHM were analyzed. The simulation results show that the motor has a small cogging torque and low magnetic coupling degree, and the independent control and stable operation of the internal and external motors can be realized. Besides, the basic characteristics of the DRHM prototype were tested. The experimental results accords well with the simulation results, which show that the proposed motor structure is reasonable and the multi-objective optimization method is effective.

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基于综合灵敏度分层的双转子轮毂电机多目标优化与性能分析

为解决现有轮毂电机在电动汽车实际应用中的不足，提出了一种集成式双转子轮毂电机（DRHM），该电机可实现多种驱动模式，以适应车辆多变的行驶条件。针对 DRHM 的复杂结构，提出了基于综合灵敏度的设计变量分层多目标优化方法。分别采用响应面法和遗传算法对中灵敏度和高灵敏度的设计变量进行优化。在综合权衡输出转矩、转矩纹波、永磁体用量和磁耦合系数等优化目标后，筛选出三个候选设计方案。通过对电机的综合性能评估，确定了最佳结构尺寸。基于二维模型，分析了 DRHM 的电磁性能。仿真结果表明，该电机具有较小的齿槽转矩和较低的磁耦合度，可实现内外电机的独立控制和稳定运行。此外，还测试了 DRHM 原型的基本特性。实验结果与仿真结果吻合，表明所提出的电机结构合理，多目标优化方法有效。

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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.