SRM power density improvement utilising rotor conducting screens and DC-link voltage boosting for EV applications

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2021-02-22 DOI:10.1049/els2.12012

Aly A. Abdel-Aziz, Khaled H. Ahmed, Ahmed M. Massoud, Barry W. Williams

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引用次数: 2

Abstract

The power density enhancement of a four-phase switched reluctance motor using rotor conducting screens and DC-link voltage boosting for electric vehicle applications is studied. The effect of conducting screen thickness and material electrical conductivity on current rise time, developed torque, and output power is studied. Different screen shapes are compared that elicit the optimum screen design by formulating a multi-objective optimisation problem based on maximising the developed torque and efficiency and minimising added material weight. A double arm common switch converter with a DC-link voltage-boosting capacitors is deployed. The boosted voltage provided by the capacitors aids the winding current to rapidly build-up; thus, increasing the motor base speed, whence power rating. Finite element analysis results confirm the SRM drive's effectiveness in increasing the motor base speed and improving the torque range; hence make the power capability of SRMs to be competitive with an equivalent volume permanent magnet synchronous motor.

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利用转子导电屏和用于电动汽车应用的直流链路升压提高SRM功率密度

本文研究了电动汽车应用中使用转子导电屏和直流环节升压的四相开关磁阻电机的功率密度增强。研究了导电屏厚度和材料电导率对电流上升时间、发展转矩和输出功率的影响。通过在最大化开发扭矩和效率以及最小化添加材料重量的基础上制定多目标优化问题，比较不同的筛网形状，以得出最佳筛网设计。部署了一种带有直流环节升压电容器的双臂公共开关转换器。由电容器提供的升压电压有助于绕组电流快速增加；从而提高电机的基本速度，从而提高额定功率。有限元分析结果证实了SRM驱动器在提高电机基本速度和改善转矩范围方面的有效性，因此SRM的功率能力与等效体积的永磁同步电机具有竞争力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.