异构多星电磁编队静态构型设计与保持控制  

Static Configuration Design and Maintenance Control of Heterogeneous Multi-satellite Electromagnetic Formation

作　　者：蔡曜 杨盛庆 吴敬玉 CAI Yao;YANG Shengqing;WU Jingyu(Shanghai Aerospace Control Technology Institute,Shanghai 201109,China;Shanghai Key Laboratory of Aerospace Intelligent Control Technology,Shanghai 201109,China)

机构地区：[1]上海航天控制技术研究所,上海201109 [2]上海市空间智能控制技术重点实验室,上海201109

出　　处：《宇航学报》2024年第3期376-388,共13页Journal of Astronautics

基　　金：上海市优秀学术带头人(23XD1401600);上海市青年科技启明星计划(17QB1401400)。

摘　　要：针对异构多星电磁编队的空间静态构型设计,提出采用精确电磁力模型进行非线性修正的方法,解决了传统方法中由远场电磁力模型造成的构型求解误差问题。考虑编队静态构型设计存在待优化参数较多的问题,基于轨道相对运动方程与电磁力内力特性,可以推导一组关于编队各星质量与空间分布的静态构型必要条件,提出了一种参数降维的四面体构型设计方法,并基于所建精确电磁力模型,对静态构型解进行了非线性修正。针对编队闭环控制问题,设计了包含摄动前馈的滑模控制器,并使用精确电磁力模型修正磁矩,提高了磁矩分配的准确性。仿真结果表明,设计的四面体构型能够满足力和力矩平衡方程,基于精确电磁力模型的修正方法有效提升了构型设计与控制精度。Aiming at the spatial static configuration design of heterogeneous multi-satellite electromagnetic formation,a numerical calculation method using accurate electromagnetic force models is proposed to decrease the error caused by the far-field electromagnetic force model in the traditional method.Considering that there are many parameters to be optimized in the static configuration design,a set of necessary conditions for the mass distribution and spatial arrangement of the satellite formation can be derived based on the orbital relative motion equations and the internal electromagnetic force characteristics.A parameter-reducing tetrahedral configuration design method is proposed,and a nonlinear correction is applied to the static configuration solution based on the accurate electromagnetic force model.To solve the closed-loop control problem of the formation,a sliding mode controller with perturbation feedforward is designed,and the precision of magnetic dipole assignment is improved using the exact electromagnetic force model.Simulation results show that the designed tetrahedral configuration can satisfy the equilibrium of forces and moments,and the correction method based on the exact electromagnetic force model improves the precision of configuration design and control.

关 键 词：卫星编队 异构电磁编队 四面体构型 静态构型设计 精确电磁力 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]