基于特征模型和跟踪微分器的主动磁轴承自适应控制方法

打开文本图片集

关键词：特征模型；跟踪微分器；主动磁轴承；自适应控制

中图分类号：TP273

DOI：10.3969/j.issn.1004-132X.2025.06.024 开放科学（资源服务）标识码（OSID）：

Adaptive Control Method of AMB Based on Characteristic Model and Tracking Differentiator

JI Li CHEN Meihao* Information Engineering College，Hangzhou Dianzi University，Hangzhou，311305

Abstract： In order to improve the robustness of AMB systems in the face of noise interference and external shocks，an adaptive control method was proposed based on characteristic model and tracking differentiator. The characteristic model parameters of AMB systems were identified online through the input and output data of the control system，and the golden section adaptive controler was designed based on the identified characteristic model. The range of characteristic parameters of AMB systems was derived，the projection gradient method with nonlinear saturation function was used to identify the parameters of the systems，and the tracking differentiator was used to track and filter the measurement data of the control system，which further improved the robustness of AMB systems in the face of noise interference. The proposed control method was tested on the test platform of high-speed magnetic levitation motor. The experimental results show that the tracking diferentiator may effectively filter out the interference of external noises on the measured data.Compared with the commonly used incomplete differential PID control method，the proposed adaptive control method may effectively improve the control accuracy and robustness of AMB systems，and the vibration peak values of the magnetic suspension rotor are reduced by 51.4% ：

Key words： characteristic model; tracking differentiator; active magnetic bearing（AMB）； adaptive control

0 引言

主动磁轴承（activemagnetic bearing，AMB）是一种利用可控电磁力使转子稳定悬浮于设定位置的新型轴承。（剩余8188字）