扇区实时优化的开关磁阻电机直接转矩控制方法

doi:10.19595/j.cnki.1000-6753.tces.180935

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摘要

基于开关磁阻电机（SRM）传统直接转矩控制方法,根据转子特定的位置信息,对电空间的划分进行重组和实时优化,使得优化后的扇区能够反映电机真实的工作状态,辅助电压矢量选择时也更加准确。同时,通过采用饱和电流解析模型,在线实时优化特定的扇区宽度,最大程度地减少瞬时负转矩的产生,在实现转矩脉动抑制功能的同时提高电机的转矩电流比。仿真与实验结果均证实了所提方法的有效性。

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	曹鑫
	户红艳
	颜宁
	邓智泉

关键词 ：开关磁阻电机, 直接转矩控制, 扇区优化, 转矩脉动, 转矩电流比

Abstract：

Based on the conventional direct torque control method, this paper restructures and optimize the electric space according to the special position information of the rotor. As a result, each sector can reflect the actual working status of the motor, making voltage vector selected more accurately. The application of saturated current analytical model, optimizes the width of sectors in real time, minimizes the generation of instantaneous negative torque, and increases the Torque/Ampere ratio while reducing the torque ripple. The simulation and experimental results proved that the proposed method was effective.

Key words： Switched reluctance motor direct torque control sectors optimization torque ripple torque/ampere ratio

收稿日期: 2018-05-31 出版日期: 2018-10-15

PACS:

TM352

基金资助:

国家自然科学基金面上项目（51477074,51577087）和中央高校基本科研业务费专项资金（XCA17003-02）资助

作者简介: 曹鑫男,1981年生,副教授,硕士生导师,研究方向为开关磁阻电机、磁悬浮无轴承电机、新能源分布式发电和电动汽车充电技术。E-mail：caoxin@nuaa.edu.cn（通信作者）;户红艳女,1997年生,硕士研究生,研究方向为开关磁阻电机控制。E-mail：1964816008@qq.com

引用本文:

曹鑫, 户红艳, 颜宁, 邓智泉. 扇区实时优化的开关磁阻电机直接转矩控制方法[J]. 电工技术学报, 2018, 33(19): 4526-4534. Cao Xin, Hu Hongyan, Yan Ning, Deng Zhiquan. Direct Torque Control of Switched Reluctance Motor with Real-Time Optimization of Sectors. Transactions of China Electrotechnical Society, 2018, 33(19): 4526-4534.

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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.180935 https://dgjsxb.ces-transaction.com/CN/Y2018/V33/I19/4526

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