Steering Laws Analysis of SGCMGs Based on Singular Value Decomposition Theory
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摘要: 基于奇异值分解理论,对航天器姿态控制系统中使用的单框架控制力矩陀螺(SGCMG)的操纵律进行了分析和比较研究.借助于奇异值分解方法,分析了各种操纵律逃逸奇异的机理,重点分析了各种操纵律对陀螺构型奇异性、输出力矩误差的影响.通过仿真算例定量地分析与比较了各种操纵律的性能,所得结果可供工程设计人员参考.Abstract: The steering laws of single gunbal control moment gyros (SGCMGs) are analyzed and compared for a spacecraft attitude control system based on the singular value decomposition (SVD) theory.The mechanism of the steering laws escaping singularity,espeaally the steering laws of how to affect the singularity ofgimbal configuration and the output toque error,was researched via SVD theory.The perforn}ance of various steering laws was analyzed and compared quantitatively by simulation.The obtained results can be used as a reference for the engineering designers.
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