Characteristic Analysis and Control of a Rotary Electromagnetic Eddy Current Brake

IF 0.6 4区计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Applied Computational Electromagnetics Society Journal Pub Date : 2021-08-06 DOI:10.47037/2020.aces.j.360623

Qiao Ren, Jimin Zhang, Jinnan Luo

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引用次数: 2

Abstract

This article designs an electromagnetic rotating eddy current brake (ECB), which has the advantages of no wear and low noise compared with traditional friction brake. First, using the magnetic circuit analysis model, a theoretical calculation formula of the ECB’s braking characteristics is given. The results show that the braking torque is negatively correlated with the thickness of the air gap as well as the electrical conductivity and the relative magnetic permeability of the brake disc material, and positively correlated with the number of ampere turns and the number of electromagnet poles. Secondly, a three-dimensional finite element (FE) model of the brake is established. The results of braking torque-speed characteristics between finite element calculation and theoretical analysis are compared, and the reasons for the differences between the two are explained. Using the FE model, the influence of the design parameters on torque characteristics is studied. Combined with the theoretical analysis model, the results are explained accordingly, providing a reference for the optimal design of the brake. Finally, a controller for the electromagnetic rotating eddy current brake is designed to control the amplitude of the desired braking torque.

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旋转电磁涡流制动器的特性分析与控制

本文设计了一种电磁旋转涡流制动器(ECB)，与传统的摩擦制动器相比，它具有无磨损、低噪音的优点。首先，利用磁路分析模型，给出了欧洲央行制动特性的理论计算公式。结果表明:制动转矩与气隙厚度、制动盘材料的电导率和相对磁导率呈负相关，与安培匝数和电磁铁极数呈正相关;其次，建立了制动器的三维有限元模型;对有限元计算和理论分析的制动转矩-速度特性结果进行了比较，并解释了两者差异的原因。利用有限元模型，研究了设计参数对转矩特性的影响。结合理论分析模型，对结果进行了相应的解释，为制动器的优化设计提供了参考。最后，设计了电磁旋转涡流制动器的控制器来控制所需制动力矩的幅值。

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

Applied Computational Electromagnetics Society Journal 工程技术-电信学

CiteScore

1.60

自引率

28.60%

发文量

审稿时长

9 months

期刊介绍： The ACES Journal is devoted to the exchange of information in computational electromagnetics, to the advancement of the state of the art, and to the promotion of related technical activities. A primary objective of the information exchange is the elimination of the need to "re-invent the wheel" to solve a previously solved computational problem in electrical engineering, physics, or related fields of study. The ACES Journal welcomes original, previously unpublished papers, relating to applied computational electromagnetics. All papers are refereed. A unique feature of ACES Journal is the publication of unsuccessful efforts in applied computational electromagnetics. Publication of such material provides a means to discuss problem areas in electromagnetic modeling. Manuscripts representing an unsuccessful application or negative result in computational electromagnetics is considered for publication only if a reasonable expectation of success (and a reasonable effort) are reflected. The technical activities promoted by this publication include code validation, performance analysis, and input/output standardization; code or technique optimization and error minimization; innovations in solution technique or in data input/output; identification of new applications for electromagnetics modeling codes and techniques; integration of computational electromagnetics techniques with new computer architectures; and correlation of computational parameters with physical mechanisms.