考虑边端效应的双边直线永磁游标电机模型预测电流控制

doi:10.19595/j.cnki.1000-6753.tces.L80217

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摘要提出一种考虑双边直线永磁游标（DSLVPM）电机边端效应的两矢量模型预测电流控制。有限控制集模型预测控制在电机驱动领域具有许多优点,但传统实现方式的矢量选择范围较小。两矢量模型预测控制在一个控制周期内同时作用两个任意电压矢量,扩大电压矢量选择范围,可以提高电流控制性能。由于直线电机存在边端效应,绕组互感的差异造成等效d、q轴电感随着电机位置而波动,并且参数失配会造成模型预测控制性能下降。针对这一问题,使用遗忘因子递归最小二乘算法在线辨识电机的等效d、q轴电感,补偿边端效应的影响,从而进一步改善两矢量模型预测电流控制的性能。基于dSPACE快速控制原型系统构建了DSLVPM电机的实验平台,并通过实验验证了该文所提算法的有效性。

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	陈晓
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关键词 ：双边直线永磁游标电机, 模型预测控制, 两矢量, 边端效应, 递归最小二乘

Abstract：In this paper, a two-vectors model predictive current control of double-side linear vernier permanent magnet machines is presented, in which the end effect is considered. Finite control set model predictive control has many advantages in the field of motor drive, but the vector selection range of the traditional implementation is relatively small. Two-vectors model predictive control simultaneously operates two arbitrary voltage vectors in single control cycle that enlarges the selection range of voltage vectors and improves the current control performance. Due to the end effect of the linear machines and the differences of mutual inductance between the windings, the equivalent dq axis inductance fluctuates with the change of position, and the parameter mismatch will cause the deterioration of the model predictive control performance. In order to solve this problem, the forgetting factor recursive least square method is used to identify the equivalent dq axis inductance online and compensates the end effect, so as to further improve the performance of the two-vectors model predictive current control. Based on the dSPACE rapid control prototype system, the effectiveness of the proposed algorithm is verified by experiments.

Key words： Double-side linear vernier permanent magnet machines model predictive control two-vectors end effect recursive least squares

收稿日期: 2018-06-29 出版日期: 2019-01-10

PACS:

TM351

基金资助:国家自然科学基金（51777090）和江苏省自然科学基金（BK20171298）资助项目

通讯作者: 赵文祥男,1976年生,教授,博士生导师,研究方向为电机设计与电磁分析、复杂系统及其控制。E-mail：zwx@ujs.edu.cn

作者简介: 陈晓男,1993年生,硕士,研究方向为永磁直线电机的驱动和控制。E-mail：cx_chenxiao@qq.com

引用本文:

陈晓, 赵文祥, 吉敬华, 陶涛, 薛瑞. 考虑边端效应的双边直线永磁游标电机模型预测电流控制[J]. 电工技术学报, 2019, 34(1): 49-57. Chen Xiao, Zhao Wenxiang, Ji Jinghua, Tao Tao, Xue Rui. Model Predictive Current Control of Double-Side Linear Vernier Permanent Magnet Machines Considering End Effect. Transactions of China Electrotechnical Society, 2019, 34(1): 49-57.

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