永磁直线同步电机自适应非奇异快速终端滑模控制

doi:10.19595/j.cnki.1000-6753.tces.181737

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Abstract The position tracking accuracy of permanent magnet linear synchronous motor(PMLSM) servo system is easily affected by uncertainties such as parameter variation and external disturbance. Therefore, an adaptive nonsingular fast terminal sliding mode control(ANFTSMC) method was proposed. Firstly, the PMLSM dynamic model with uncertainty was established. Then, the nonsingular fast terminal sliding mode control(NFTSMC) method was used to suppress the influence of these uncertain factors and avoid the singularity, ensuring the system tracking error to converge quickly in a finite time and weakening the chattering. At the same time, the upper bound of uncertain parameters was estimated by adaptive control, which improved the robust performance of the system. Finally, the effectiveness of the proposed control scheme was verified by experiments. Compared with SMC and NFTSMC, this method significantly weakens the chattering phenomenon and has strong robust performance while ensuring fast convergence and tracking accuracy.

Key words： Permanent magnet linear synchronous motor adaptive nonsingular fast terminal sliding mode control chattering robustness

Received: 08 November 2018 Published: 28 February 2020

PACS:	TP273
	TM351

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	Fu Dongxue
	Zhao Ximei

Cite this article:

Fu Dongxue,Zhao Ximei. Adaptive Nonsingular Fast Terminal Sliding Mode Control for Permanent Magnet Linear Synchronous Motor[J]. Transactions of China Electrotechnical Society, 2020, 35(4): 717-723.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.181737 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/I4/717

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