| 新型动态控制力矩陀螺操纵律设计 |
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| 引用本文： | 刘向东,辛星,李震,陈振.新型动态控制力矩陀螺操纵律设计[J].控制与决策,2017,32(9):1642-1646. |
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| 作者姓名： | 刘向东 辛星 李震 陈振 |
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| 作者单位： | 1. 北京理工大学自动化学院,北京100081;2. 北京电子工程总体研究所,北京100854,1. 北京理工大学自动化学院,北京100081;2. 北京电子工程总体研究所,北京100854,1. 北京理工大学自动化学院,北京100081;2. 北京电子工程总体研究所,北京100854,1. 北京理工大学自动化学院,北京100081;2. 北京电子工程总体研究所,北京100854 |
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| 基金项目： | 国家自然科学基金项目(51407011,11372034,51207145). |
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| 摘 要： | 首先提出一类新型控制力矩陀螺(CMG)操纵律,改变使用静态数据求逆构造力矩分配矩阵的设计思路,利用近似的动态微分特性构造力矩分配矩阵,进而对新型操纵律奇异性进行分析.基于奇异分析结果,设计一种切换型CMG奇异回避策略,使CMG能在首选力矩分配矩阵接近奇异时,使用非奇异的备选分配矩阵将之替换.仿真结果表明,所设计的CMG操纵律具有较高的计算精度,同时具有一定的奇异适应性.
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| 关 键 词： | 控制力矩陀螺 操纵律 构形奇异 姿态控制 |
Novel dynamic CMG steering law based on differential approximation |
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| LIU Xiang-dong,XIN Xing,LI Zhen and CHEN Zhen.Novel dynamic CMG steering law based on differential approximation[J].Control and Decision,2017,32(9):1642-1646. |
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| Authors: | LIU Xiang-dong XIN Xing LI Zhen and CHEN Zhen |
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| Affiliation: | 1. School of Automation,Beijing Institute of Technology,Beijing 100081,China;2. Beijing Institute of Electronic System Engineering,Beijing100854,China,1. School of Automation,Beijing Institute of Technology,Beijing 100081,China;2. Beijing Institute of Electronic System Engineering,Beijing100854,China,1. School of Automation,Beijing Institute of Technology,Beijing 100081,China;2. Beijing Institute of Electronic System Engineering,Beijing100854,China and 1. School of Automation,Beijing Institute of Technology,Beijing 100081,China;2. Beijing Institute of Electronic System Engineering,Beijing100854,China |
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| Abstract: | To address the control momentum gyros(CMG) control issue, a novel steering law is proposed, characterized by the approximate differential dynamics used in the control allocation to replace the statically calculated pseudo-inverse methods. The analysis is proceeded to figure out the singularity robustness. As a result, a switching strategy is proposed to handle the singularity by replacing the allocation matrix with a nonsingular one. Numerical simulations are applied to verify the performance of the algorithm which provides better accuracy and certain singularity robustness. |
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