Comparative Analysis for an Electric Power Steering System

2018 XIII International Conference on Electrical Machines (ICEM) Pub Date : 2018-09-01 DOI:10.1109/ICELMACH.2018.8507038

P. Florin, R. Mircea, Pop Adrian-Cornel, R. Martis, C. Martis

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引用次数: 3

Abstract

This paper presents a comparative analysis of three different motor structures designed for an electric power steering system (EPS) used in automotive industry. For automotive applications, high torque and power density, low torque ripple and wide speed range are needed. In order to make the comparison as transparent as possible, at first, the existing Interior Permanent Magnet Synchronous Motor (IPMSM) has been modeled by means of Finite Element Method (FEM) so as to check the electromagnetic behavior, (i.e. flux density, cogging and electromagnetic torque) weight and costs of active materials. In fact, the specifications for the new designed motors coincide with the characteristics of the IPMSM mentioned above (mounted on an actual EPS unit). Next step was the design, optimization and modelling of the two new machines i.e. one PMSM with a different rotor structure regarding the magnets shape (V-shape design) and finally a synchronous reluctance machine (SynRM). Moreover, real-time model in the loop (RTMiL) programs are created to simulate transient behavior of the machines.

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电动助力转向系统的比较分析

本文对汽车电动助力转向系统的三种不同电机结构进行了比较分析。对于汽车应用，需要高扭矩和功率密度，低扭矩脉动和宽速度范围。为了使比较尽可能透明，首先采用有限元法对现有的内嵌式永磁同步电动机(IPMSM)进行建模，以校核活性材料的电磁性能(即磁通密度、齿槽和电磁转矩)、重量和成本。事实上，新设计电机的规格符合上述IPMSM的特性(安装在实际的EPS单元上)。下一步是两个新机器的设计、优化和建模，即一个永磁同步电机具有不同的转子结构，关于磁铁形状(v形设计)，最后是一个同步磁阻电机(SynRM)。此外，还创建了实时循环模型(RTMiL)程序来模拟机器的瞬态行为。

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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2018 XIII International Conference on Electrical Machines (ICEM)

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