SINGULARITY ROBUST STEERING OF REDUNDANT SINGLE GIMBAL CONTROL MOMENT GYROS FOR SMALL SATELLITES

SINGULARITY ROBUST STEERING OF REDUNDANT SINGLE GIMBAL CONTROL MOMENT GYROS FOR SMALL SATELLITES
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发表时间：
2005
期刊：
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影响因子：
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通讯作者：
H. Okubo;Yuki Tani
H. Okubo;Yuki Tani
中科院分区：
其他
文献类型：
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作者：
H. Okubo;Yuki Tani

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提出了一种小型单框架控制力矩陀螺（SGCMG）集群作为小卫星高速机动姿态控制执行机构。研究了金字塔构型4-SGCMG系统的奇异性问题，给出了三维角动量空间中的奇异面。本文提出了一种简单的奇异避免控制逻辑使用奇异值分解算法。以小卫星姿态控制为例进行了数值仿真，验证了该方法的奇异回避能力。
A cluster of small-sized single-gimbal control moment gyros (SGCMGs) is proposed as an attitude control actuator for high-speed maneuver of small satellites. Singularity problem of the system of 4-SGCMGs in pyramid configuration is investigated to show the singularity surfaces in the three-dimensional angular momentum space. This paper presents a simple singularity avoidance control logic using the singular value decomposition algorithm. Capability of the present steering method in singularity avoidance is demonstrated with numerical simulations for attitude control of a small satellite.