开关磁阻电机矩角特性模型非线性拟合方法

doi:10.13700/j.bh.1001-5965.2018.0223

北京航空航天大学学报 ›› 2019, Vol. 45 ›› Issue (1): 83-92.doi: 10.13700/j.bh.1001-5965.2018.0223

开关磁阻电机矩角特性模型非线性拟合方法

叶威^1,2, 马齐爽², 徐萍², 张珀铭²

1. 空间物理重点实验室, 北京 100076;
2. 北京航空航天大学自动化科学与电气工程学院, 北京 100083

收稿日期:2018-04-23 修回日期:2018-07-27 出版日期:2019-01-20 发布日期:2019-01-28
通讯作者: 马齐爽 E-mail:qsma304@buaa.edu.cn
作者简介:叶威,男,博士研究生。主要研究方向:磁阻电机建模及控制;马齐爽,男,博士,教授。主要研究方向:电气系统检测、电气系统控制及可靠性、磁阻电机。

Nonlinear fitting method for torque-angle characteristic model of switched reluctance motor

YE Wei^1,2, MA Qishuang², XU Ping², ZHANG Poming²

1. Key Laboratory of Space Physics, Beijing 100076, China;
2. School of Automation Science and Electrical Engineering, Beihang University, Beijing 100083, China

Received:2018-04-23 Revised:2018-07-27 Online:2019-01-20 Published:2019-01-28

摘要/Abstract

摘要： 开关磁阻电机难以采用传统电机分析方法进行建模，通过分析开关磁阻电机电磁转矩生成原理，确定了不同电机饱和状态下电磁转矩与相电感导数之间的关系。用分段函数非线性拟合的方式对电感导数曲线进行建模，再进一步得到开关磁阻电机可逆矩角特性的解析模型，并基于电机的结构参数和约束条件逐一确定和优化了模型的各个参数。利用可逆矩角特性模型，可以方便地计算电机磁化曲线和瞬时磁链，给电机设计及驱动控制带来很大的方便。通过2个样机的实测数据和有限元结果对该模型解析计算结果的准确性进行了验证。

关键词: 开关磁阻电机, 建模, 非线性, 矩角特性, 曲线拟合

Abstract: The modeling method of the switched reluctance motor is different from the traditional motor. By analyzing the principle of electromagnetic torque generation, the relationship between electromagnetic torque and phase inductance derivatives under different motor saturation conditions is determined. The inductance derivative curve is modeled by piecewise function nonlinear fitting. And then, the analytical model for the reversible torque-angle characteristics of switched reluctance motor is obtained. The parameters of the model are determined and optimized by the structural parameters and constraint condition of the motor. The reversible torque-angle model makes the calculation of the magnetization curve and the instantaneous flux linkage possible. It brings great convenience for the design of the motor and the drive control of the motor. The accuracy of the analytical results is verified by the measured data and the finite element method with two prototypes.

Key words: switched reluctance motor, modeling, nonlinear, torque-angle characteristics, curve fitting

中图分类号:

TM352

叶威, 马齐爽, 徐萍, 张珀铭. 开关磁阻电机矩角特性模型非线性拟合方法[J]. 北京航空航天大学学报, 2019, 45(1): 83-92.

YE Wei, MA Qishuang, XU Ping, ZHANG Poming. Nonlinear fitting method for torque-angle characteristic model of switched reluctance motor[J]. JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2019, 45(1): 83-92.

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开关磁阻电机矩角特性模型非线性拟合方法

Nonlinear fitting method for torque-angle characteristic model of switched reluctance motor

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