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首页> 外文会议>2011 International Conference on Electrical Machines and Systems >The research of the novel bearingless levitation system based on Extended State Observer (ESO)
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The research of the novel bearingless levitation system based on Extended State Observer (ESO)

机译：基于扩展状态观测器（ESO）的新型无轴承悬浮系统的研究

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摘要

At present, the classical control strategy of PID is widely adopted in the bearingless levitation system. However, it is hard to realize high performance of levitation control, due to the influence of disturbance, parameters perturbation etc. Aiming at the problem above, the novel bearingless levitation system based on Extended State Observer (ESO) is suggested in this paper. According to the basic principle that ESO can obverse the total disturbance, the mathematical model of the system is built. The stability of the system is analyzed, and the parameters adjustment is demonstrated theoretically, which provides a new method for the levitation control system. Meanwhile, the range of the parameters is specified in the stable region. Moreover, combining with the physical significance of the main parameters, the principle of the parameters adjusting in the nonlinear Extended State Observer is improved. Finally, by simulation, it is verified that ESO makes a significant contribution to the disturbance rejection of the bearingless levitation system, and the validity of the scheme above is proved.
机译：目前，无轴承悬浮系统广泛采用PID的经典控制策略。然而，由于扰动，参数扰动等因素的影响，难以实现高性能的悬浮控制。针对上述问题，本文提出了一种基于扩展状态观测器（ESO）的新型无轴承悬浮系统。根据ESO能够克服总扰动的基本原理，建立了系统的数学模型。分析了系统的稳定性，并从理论上说明了参数的调整，为悬浮控制系统提供了一种新的方法。同时，在稳定区域中指定参数的范围。此外，结合主要参数的物理意义，改进了非线性扩展状态观测器中参数调整的原理。最后，通过仿真验证了ESO对无轴承悬浮系统的抗扰性做出了重要贡献，并证明了以上方案的有效性。

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