GPIO‐based robust control of magnetic levitation system subject external disturbance

Lan, Qixun; Cai, Yujie; Xu, Hai‐Bing; Yang, Yuqian; Li, Yanan

doi:10.1049/joe.2019.1064

Cited by 2 publications

(1 citation statement)

References 15 publications

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“…Due to the characteristics of noncontact and high energy efficiency, magnetic levitation technologies have been applied to many fields, such as maglev train [1,2], magnetic bearing [3], thin steel plate processing [4], vibration isolation system [5,6], biomedicine [7], and aerospace microgravity devices [8,9]. For maglev systems, most of the established models are second-order current models [10][11][12][13] and third-order voltage models [14][15][16][17]. Among them, the second-order current models are easy to implement but not close to reality, while the third-order voltage models are close to reality but relatively complex.…”

Section: Introductionmentioning

confidence: 99%

Global fast terminal integral sliding mode control based on magnetic field measurement for magnetic levitation system

Ren

et al. 2021

Asian Journal of Control

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Magnetic levitation systems are widely applied in many fields. In this paper, a global fast terminal integral sliding mode controller (GFTISMC) based on the second‐order flux linkage model is proposed to improve the response speed and steady‐state error of the maglev system. Firstly, the dynamic model of the maglev system is deduced, and the second‐order flux state model is established. Secondly, to improve the global response speed of the system and reduce the steady‐state error, a GFTISMC is constructed. A position model based on magnetic field measurement is determined to achieve closed‐loop control. Finally, compared with the traditional sliding mode control, the simulation and experimental results show that the proposed controller has better global response speed, stronger robustness, and smaller steady‐state error.

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