基于特征模型和跟蹤微分器的主動磁軸承自適應(yīng)控制方法

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關(guān)鍵詞：特征模型；跟蹤微分器；主動磁軸承；自適應(yīng)控制

中圖分類號：TP273

DOI：10.3969/j.issn.1004-132X.2025.06.024 開放科學(xué)（資源服務(wù)）標(biāo)識碼（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

主動磁軸承（activemagnetic bearing，AMB）是一種利用可控電磁力使轉(zhuǎn)子穩(wěn)定懸浮于設(shè)定位置的新型軸承。（剩余8188字）