基于反馈线性化的永磁直线同步电机自适应动态滑模控制

doi:10.19595/j.cnki.1000-6753.tces.L90219

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Abstract In the high-speed and high-precision permanent magnet linear synchronous motor servo system, the nonlinear coupling between direct axis current and quadrature axis current, linear speed and current, as well as parameter perturbation and load disturbance, seriously affected the speed tracking accuracy and response speed. In this paper, the feedback linearization control method was used to decouple and linearize the affine nonlinear model of the motor into independent current subsystem and linear speed subsystem through coordinate transformation and state feedback. Based on the linearization model, a dynamic sliding mode controller was designed to reduce the dependence of the feedback linearization control on the linear motor mathematical model and improve the robustness of the servo system. At the same time, an adaptive control law was designed to estimate the uncertain disturbance and weaken the chattering phenomenon. Simulation and experimental results show that the proposed control strategy can effectively improve the speed tracking performance and enhance the robustness of the system.

Key words： Permanent magnet linear synchronous motor speed tracking feedback linearization dynamic sliding mode control adaptive

Received: 30 June 2020

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TP273

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	Zhang Kang
	Wang Limei

Cite this article:

Zhang Kang,Wang Limei. Adaptive Dynamic Sliding Mode Control of Permanent Magnet Linear Synchronous Motor Based on Feedback Linearization[J]. Transactions of China Electrotechnical Society, 2021, 36(19): 4016-4024.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.L90219 OR https://dgjsxb.ces-transaction.com/EN/Y2021/V36/I19/4016

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