Analysis, Estimation, and Rejection of Multi-Frequency Unknown Disturbances in CMG Gimbal Servo Systems

被引：0

作者：

Cui, Yangyang ^{[1
]}

Zhu, Yukai ^{[2
]}

Liu, Jun ^{[3
]}

Wang, Chenliang ^{[3
]}

Zhao, Lei ^{[4
]}

机构：

[1] Peking Univ, Coll Engn, Beijing 100871, Peoples R China

[2] Beihang Univ, Sch Astronaut, Beijing 100191, Peoples R China

[3] Beihang Univ, Sch Automat Sci & Elect Engn, Beijing 100191, Peoples R China

[4] Beijing Inst Technol, Sch Automat, Beijing 100081, Peoples R China

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2024年 / 71卷 / 10期

基金：

中国博士后科学基金; 北京市自然科学基金; 中国国家自然科学基金;

关键词：

CMG; servo system; multi-frequency unknown disturbances; closed-loop uncertainty quantification; separation-estimation;

D O I：

10.1109/TCSII.2024.3398066

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This brief aims to deal with the CMG gimbal servo system's velocity tracking problem in the presence of multi-frequency unknown disturbances. To fully comprehend the gimbal servo system, closed-loop uncertainty quantification is first employed. Second, an adaptive refined disturbance observer built on a second-order generalized integrator-frequency locked loop is designed to accurately separate and estimate multiple disturbances in the absence of precise frequency information. Subsequently, the PI controller is integrated to achieve multi-frequency unknown disturbances suppression and compensation. Finally, experimental results demonstrate the effectiveness of this method under multi-frequency unknown disturbances.

引用

页码：4501 / 4505

页数：5

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