A Concept of Accelerating the Demagnetization of Switched Reluctance Motor

IF 1.7 Q2 Engineering

Canadian Journal of Electrical and Computer Engineering-Revue Canadienne De Genie Electrique et Informatique Pub Date : 2020-01-01 DOI:10.1109/CJECE.2020.3002243

Jiayi Fan, Yongkeun Lee

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引用次数: 1

Abstract

The demagnetization of switched reluctance motor (SRM) is usually a nonnegligible problem as the speed increases due to large back electromotive force (EMF). A slow demagnetization causes long tail current and negative torque, which reduces the efficiency and the output capability of SRM. In the conventional SRM design method, the inductance slope is normally designed to be high. However, it causes the problems of slow demagnetization in the negative torque region and low utilization efficiency of the torque-generative region. This article proposed a totally contrary way of SRM design, a small value of the inductance slope is chosen. Therefore, the effect of the back EMF can be diminished and the demagnetization is improved. The utilization of the torque-generative region is also improved due to the delayed turn-off angle. Simulation results are provided to verify the advantages of the proposed idea compared with the conventional one.

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加速开关磁阻电机退磁的概念

开关磁阻电动机由于背电动势大，转速增加，因此其退磁问题是一个不可忽视的问题。缓慢的退磁会导致长尾电流和负转矩，降低了SRM的效率和输出能力。在传统的SRM设计方法中，电感斜率通常设计得很高。但存在负转矩区退磁慢、转矩区利用效率低等问题。本文提出了一种完全相反的SRM设计方法，即选择较小的电感斜率值。因此，可以减少反电动势的影响，提高退磁性能。由于延时关断角的存在，提高了转矩产生区域的利用率。仿真结果验证了该方法与传统方法相比的优越性。

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

Canadian Journal of Electrical and Computer Engineering-Revue Canadienne De Genie Electrique et Informatique 工程技术-工程：电子与电气

自引率

0.00%

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期刊介绍： The Canadian Journal of Electrical and Computer Engineering (ISSN-0840-8688), issued quarterly, has been publishing high-quality refereed scientific papers in all areas of electrical and computer engineering since 1976