磁悬浮三轴惯性稳定平台姿态稳定控制

IF 5.2 2区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Measurement Pub Date : 2025-05-14 DOI:10.1016/j.measurement.2025.117858

Biao Xiang , Zitong Shi , Tong Wen , Hu Liu

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引用次数: 0

摘要

针对三轴惯性稳定平台中方位架的3-DoF悬浮和2-DoF倾斜，设计了集成式5自由度主动磁轴承（AMB），并设计了电流分布控制以实现5-DoF悬浮。首先介绍了集成五自由度电磁轴承方位框架的原型，并分别分析了轴向和径向电磁轴承单元的受力特性。在此基础上，基于平移和倾斜控制回路中的等效磁路，设计了轴向电磁轴承单元的电流分配原理，以合理分配控制电流。仿真结果表明，集成五自由度电磁轴承能够稳定地悬浮方位角框架，提高了方位角框架绕径向和轴向的旋转精度。在实验中，有效地分配了集成五自由度AMB不同控制回路的控制电流，提高了效率，降低了功耗。利用集成五自由度磁悬浮系统的磁力，将方位架的稳态误差从0.018°减小到0.0099°，机动时间缩短了5 s。因此，采用电流分布法的五自由度AMB可以提高方位角框架的视线跟踪精度。

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Attitude stabilization control of three-axis inertial stabilized platform using magnetically suspension system

An integrated 5-DoF (degree of freedom) active magnetic bearing (AMB) is designed for 3-DoF suspension and 2-DoF tilting of an azimuth frame in a three-axis inertially stabilized platform, and the current distribution control is designed to realize the 5-DoF suspension. The prototype of the azimuth frame with the integrated 5-DoF AMB is first introduced, and the force characteristics of axial and radial AMB units are respectively analyzed. Furthermore, based on the equivalent magnetic circuits of the axial AMB units in translation and tilting control loops, the current distribution principle is designed for axial AMB units to distribute the control currents reasonably. The simulations are conducted to demonstrate that the integrated 5-DoF AMB could stably suspend the azimuth frame, and the rotating accuracies of the azimuth frame around radial and axial axes are improved. In the experiment, the control currents in different control loops of the integrated 5-DoF AMB are effectively distributed to enhance efficiency and reduce power costs. The steady-state error of the azimuth frame is reduced from 0.018° to 0.0099° using magnetic forces of the integrated 5-DoF AMB system, and the maneuver time is shortened by 5 s. Therefore, the 5-DoF AMB using the current distribution method could improve the line-of-sight tracking precision of the azimuth frame.

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来源期刊

Measurement 工程技术-工程：综合

CiteScore

10.20

自引率

12.50%

发文量

1589

审稿时长

12.1 months

期刊介绍： Contributions are invited on novel achievements in all fields of measurement and instrumentation science and technology. Authors are encouraged to submit novel material, whose ultimate goal is an advancement in the state of the art of: measurement and metrology fundamentals, sensors, measurement instruments, measurement and estimation techniques, measurement data processing and fusion algorithms, evaluation procedures and methodologies for plants and industrial processes, performance analysis of systems, processes and algorithms, mathematical models for measurement-oriented purposes, distributed measurement systems in a connected world.