一种基于非线性反馈重复控制策略的磁通切换直线电机推力波动抑制方法

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摘要针对初级永磁型磁通切换直线（LFSPM）电机,研究其定动子双凸极结构引起的与位移相关的定位力、摩擦力及参数变化等不确定性对伺服系统的影响,提出一种基于非线性反馈的重复控制策略。首先,在分析LFSPM电机定位力的基础上,通过设计重复控制器对定位力引起的推力波动进行抑制;随后设计非线性反馈控制器,对因摩擦力及参数变化等不确定性因素引起的推力波动进行补偿,同时使逼近误差随周期数的累加而呈现减小的趋势,保证了系统的全局渐近稳定性。最后,通过A&D5435半实物系统搭建了控制模型,实验结果表明,该控制方案有效抑制了因定位力及其他不确定因素引起的推力波动。

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	孟高军
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	胡敏强
	刘海涛
	酒晨霄

关键词 ：永磁型磁通切换直线电机, 双凸极, 定位力, 重复控制, 非线性反馈, 推力波动

Abstract：For the primary permanent magnet linear flux-switching permanent magnet (LFSPM) machine, the position-dependent cogging force caused by double salient structure, friction and parameters uncertainties have impacts on its servo performance. A new repetitive control strategy based on the nonlinear feedback is proposed. Firstly, a repetitive controller (RC) is designed to compensate the thrust ripple arising from the cogging force. Then, the nonlinear feedback controller (NFC) is added into, to compensate the thrust fluctuation caused by friction and parameters uncertainties. Meanwhile, the convergence error gradually decreases with the increasing of periodic numbers. The global asymptotic stability is thereby ensured. Finally, experimental evaluations of the proposed scheme are carried out on A&D5435 LFSPM drive platform. The test of the LFSPM machine control system has verified the proposed scheme.

Key words： Linear flux-switching permanent magnet (LFSPM), double salient, cogging force, repetitive control, nonlinear feedback, thrust fluctuation

收稿日期: 2016-04-22 出版日期: 2017-05-02

PACS:

TM359.4

基金资助:国家自然科学基金（51377074、51507077）,南京工程学院引进人才科研启动基金（YJK2017）,南京工程学院科研基金平台与实验专项基金（PTKJ201610）以及航空科学基金（20130769005）资助项目

作者简介: 孟高军男,1987年生,博士,讲师,研究方向为电力电子装置及其应用、直线电机控制。E-mail: gjun_m@126.com（通信作者）;余海涛男,1965年生,博士,教授,博士生导师,研究方向为直线电机与应用研究、波浪发电技术研究。E-mail: yu_haitao@63.com

引用本文:

孟高军, 余海涛, 胡敏强, 刘海涛, 酒晨霄. 一种基于非线性反馈重复控制策略的磁通切换直线电机推力波动抑制方法[J]. 电工技术学报, 2017, 32(8): 169-177. Meng Gaojun, Yu Haitao, Hu Minqiang, Liu Haitao, Jiu Chenxiao. Thrust Ripple Suppression for Linear Flux-Switching Permanent Magnet Machine Based on a Repetitive Control Strategy of Nonlinear Feedback. Transactions of China Electrotechnical Society, 2017, 32(8): 169-177.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2017/V32/I8/169

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