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首页> 外文会议>Mediterranean Conference on Control and Automation >State Observer with Relaxed Excitation Conditions with Application to MagLev System
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State Observer with Relaxed Excitation Conditions with Application to MagLev System

机译：具有轻松激励条件的国家观察者，应用于Maglev系统

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摘要

This paper presents a modified state observer for a nonlinear system. Recently presented parameter estimation-based observer for such system uses Dynamic Regressor Extension and Mixing (DREM) procedure and requires non-square integrability property for the regressor to guarantee that an observer error convergences to zero. However, it is not satisfied in some operating modes. For example, when the object is stabilized in a constant position. As an application a model of one degree of freedom magnetic levitation system is considered. Only the electromagnet coil current and voltage are measured, and the flux, speed and position values are reconstructed with observers. The proposed finite time modification for the flux observer requires the weaker interval excitation condition, which is fulfilled during the transient process. The simulation results demonstrate the efficiency of the algorithm.
机译：本文介绍了非线性系统的修改状态观察者。 最近呈现的基于参数估计的这些系统的观察者使用动态回归扩展和混合（DREM）过程，并且需要对回归的非方形积分属性来保证观察者误差会聚到零。 但是，在某些操作模式下不满足。 例如，当物体以恒定位置稳定时。 作为应用，考虑了一种自由度磁悬浮系统的模型。 仅测量电磁铁线圈电流和电压，并用观察者重建通量，速度和位置值。 用于磁通观测器的提出的有限时间修改需要较弱的间隔激励条件，在瞬态过程中满足。 仿真结果展示了算法的效率。

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