基于模糊逻辑的航天器信息融合预见姿态控制

包燕伟 ,  管萍 ,  戈新生 ,  曹彧腾

应用力学学报 ›› 2025, Vol. 42 ›› Issue (6) : 1246 -1253.

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应用力学学报 ›› 2025, Vol. 42 ›› Issue (6) : 1246 -1253. DOI: 10.11776/j.issn.1000-4939.2025.06.004
航空航天工程专栏

基于模糊逻辑的航天器信息融合预见姿态控制

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Fuzzy logic-based information fusion preview attitude control for spacecraft

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摘要

大挠性航天器所携带的大型挠性附件具有体积大和刚度低等特点,导致大挠性附件振动会严重影响航天器的姿态控制。对此,将模糊控制和信息融合预见控制结合,设计了基于模糊的信息融合预见姿态控制器。依据信息融合理论,通过融合航天器期望轨迹和动态方程等信息推导了航天器的最优预见姿态控制律。此控制策略具有设计过程简单、计算量小且易于实现的特点。针对在实际工程中执行机构存在输出力矩受限问题,采用模糊控制在线调整控制律的相关参数,以使控制量满足受限要求。仿真结果表明所设计的控制策略可使挠性附件振动快速衰减,航天器姿态角能准确、快速地达到期望值,具有较好的控制性能,可为大挠性航天器姿态控制的工程应用提供借鉴。

Abstract

Large flexible appendages of flexible spacecraft are characterised by their large scale and low stiffness, resulting in vibration of large flexible appendages that can seriously affect the attitude precision of the spacecraft.Information fusion preview control is combined with fuzzy control to construct the attitude controller.According to the information fusion theory, the spacecraft's desired trajectory and system dynamics information are fused, the optimal preview control law is derived.The optimal preview control law can be easily obtained due to the information fusion control has a simple design process and low computational burden.In real engineering, the control torque generated by the actuator is limited.The fuzzy controller is employed to adjust the parameters of the control law on-line in order to satisfy the requirements of limitation.Simulation results show that the designed control strategy with high control performance can effectively suppress the vibration of the flexible appendages, and the attitude angle can reach the desired value accurately and quickly.The proposed control strategy can be served as a reference for the engineering application of large flexible spacecraft attitude control.

关键词

大挠性航天器 / 姿态控制 / 信息融合 / 预见控制 / 模糊逻辑

Key words

large flexible spacecraft / attitude control / information fusion / preview control / fuzzy logic

引用本文

引用格式 ▾
包燕伟,管萍,戈新生,曹彧腾. 基于模糊逻辑的航天器信息融合预见姿态控制[J]. 应用力学学报, 2025, 42(6): 1246-1253 DOI:10.11776/j.issn.1000-4939.2025.06.004

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基金资助

国家自然科学基金重点资助项目(11732005)

国家自然科学基金资助项目(12372004)

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