| 引用本文: | 王要强,朱亚昌,冯玉涛,田兵.永磁同步电机新型趋近律滑模控制策略[J].电力自动化设备,2021,41(1): |
| WANG Yaoqiang,ZHU Yachang,FENG Yutao,TIAN Bing.New reaching law sliding mode control strategy for permanent magnet synchronous motor[J].Electric Power Automation Equipment,2021,41(1): |
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| 摘要: |
| 为了提高永磁同步电机(PMSM)调速系统的动态性能，提出一种新型趋近律滑模控制策略。所提出的新型趋近律在幂次趋近律的基础上加入指数项，并且在幂次项指数中引入系统状态变量使幂次项指数与系统状态关联，解决幂次趋近律在远离滑模面时趋近速度慢的问题，同时使系统能平滑进入滑模面。然后，基于扩张状态观测器观测系统负载扰动，并将观测值前馈补偿至滑模控制器，降低负载扰动对系统的影响，提高系统的鲁棒性。仿真与实验结果表明，所提出的新型趋近律滑模控制策略能够有效地提高系统的动态性和鲁棒性。 |
| 关键词: 永磁同步电机 滑模控制 新型趋近律 鲁棒性 |
| DOI：10.16081/j.epae.202010005 |
| 分类号:TM341 |
| 基金项目:国家自然科学基金资助项目(51507155)；河南省高等学校青年骨干教师项目(2019GGJS011)；郑州大学研究生教育研究项目(YJSJY201964) |
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| New reaching law sliding mode control strategy for permanent magnet synchronous motor |
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WANG Yaoqiang1, ZHU Yachang1, FENG Yutao1, TIAN Bing2
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1.School of Electrical Engineering, Zhengzhou University, Zhengzhou 450001, China;2.School of Automation, Nanjing University of Aeronautics and Astronautics, Nanjing 210000, China
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| Abstract: |
| In order to improve the dynamic performance of PMSM(Permanent Magnet Synchronous Motor) speed regulation system, a new reaching law sliding mode control strategy is proposed. Based on the power reaching law, an exponential term is added, and the system state variable is introduced into the power term index to associate the power term index with the system state, so as to solve the problem of slow approa-ching speed when the system state is far from the sliding surface, and meanwhile make the system enter the sliding surface smoothly. Then, the extended state observer is applied to observe the load disturbance, and the feedforward compensation of the observation value is employed to the sliding mode controller, which can reduce the impact of load disturbance on the system and improve the system robustness. The simulative and experimental results show that the proposed new reaching law sliding mode control strategy can improve the dynamic performance and robustness of the system effectively. |
| Key words: permanent magnet synchronous motor sliding mode control new reaching law robustness |
