电工技术学报  2018, Vol. 33 Issue (21): 4962-4970    DOI: 10.19595/j.cnki.1000-6753.tces.171407
电机与电器 |
离散型变增益永磁同步电机超螺旋滑模观测器
张懿1, 吴嘉欣1, 韦汉培1, 张友泉2, 彭艳3
1. 江苏科技大学电子信息学院 镇江 212000;
2. 国网山东省电力公司 济南 255001;
3. 上海大学机电工程与自动化学院 上海 200072
Discrete Variable Gain Super-Twisting Sliding Mode Observer for Permanent Magnet Synchronous Motor
Zhang Yi1, Wu Jiaxin1, Wei Hanpei1, Zhang Youquan2, Peng Yan3
1. College of Electronics and Information Jiangsu University of Science and Technology Zhenjiang 212000 China;
2. State Grid Shandong Electric Power Company Ji’nan 255001 China;
3. College of Mechatronic Engineering and Automation Shanghai University Shanghai 200072 China
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摘要 针对传统滑模观测器存在的固有抖振问题,提出一种离散变增益永磁同步电机超螺旋滑模观测器。首先,该观测器增益随电机转速及系统内部状态动态调整,实现了宽范围变转速工况下的滑模抖振抑制。其次,设计一阶低通滤波器提高滑模控制系统暂态过程中的鲁棒性,基于反证法验证滑模轨迹在有限时间内的收敛性。最后,提出一种新型矢量控制策略对系统电流环d、q轴进行充分解耦,基于混合定向策略从观测器输出提取α、β轴有效反电动势分量,结合反电动势变换矩阵进行电流环内的前馈补偿。实验结果验证了该文所提出控制策略的有效性和实用性。
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张懿
吴嘉欣
韦汉培
张友泉
彭艳
关键词 永磁同步电机超螺旋滑模观测器离散变增益抖振抑制矢量控制    
Abstract:Since traditional sliding mode observer has inherent chattering problem, a discrete variable gain super-twisting sliding mode observer for permanent magnet synchronous motor is proposed. Firstly, the variable gain of the observer is dynamically adjusted with the motor speed and the internal state of system, so that the sliding mode chattering suppression in a wide range of variable speed conditions is achieved. Secondly, a first-order low-pass filter is designed to improve the robustness in the transient process of the sliding mode control system, and the convergence of sliding mode trajectory in finite time is proved based on reduction to absurdity. Finally, a new vector control strategy is proposed to fully decouple the d、q axis of current loop. Based on hybrid orientation, the effective back EMF component of α、β axis is extracted from the observer output, and combine with the back EMF transformation matrix, feedforward compensation in the current loop is realized. Experimental results verify the effectiveness and practicability of the control strategy proposed in this paper.
Key wordsPermanent magnet synchronous motor    super-twisting sliding mode observer    discrete variable gain    chattering suppression    vector control   
收稿日期: 2017-10-20      出版日期: 2018-11-12
PACS: TM301  
基金资助:国家自然科学基金(61503161, 91648119, 51809128)、江苏省省重点研发计划产业前瞻与共性关键技术重点项目(BE2018007)和上海市科委能力建设项目(14500500400)资助
作者简介: 张 懿 女,1982年生,博士,研究方向为电机驱动控制以及复杂控制系统。E-mail:zyi82@126.com(通信作者)吴嘉欣 女,1994年生,硕士,研究方向为永磁同步电机无传感器控制。E-mail:jiaxinwu94@126.com
引用本文:   
张懿, 吴嘉欣, 韦汉培, 张友泉, 彭艳. 离散型变增益永磁同步电机超螺旋滑模观测器[J]. 电工技术学报, 2018, 33(21): 4962-4970. Zhang Yi, Wu Jiaxin, Wei Hanpei, Zhang Youquan, Peng Yan. Discrete Variable Gain Super-Twisting Sliding Mode Observer for Permanent Magnet Synchronous Motor. Transactions of China Electrotechnical Society, 2018, 33(21): 4962-4970.
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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.171407          https://dgjsxb.ces-transaction.com/CN/Y2018/V33/I21/4962