卫星姿态控制系统的可重构性量化评价方法研究

发布时间：2018-04-21 05:54

本文选题：卫星姿态控制系统 + 可重构性　；参考：《航天控制》2016年04期

【摘要】：控制可重构性本质上度量了不利条件下被控系统剩余的能控性。鉴于此,本文以卫星姿态控制系统为研究对象,研究了故障系统可重构性和剩余能控性之间的关系,提出了一种基于能控性格莱姆矩阵的可重构评价方法。首先,对标准能控性格莱姆矩阵的局限性进行了分析:由于该方法需要求解李雅普诺夫方程,故只适用于稳定系统或特征值和不为0的非稳定系统;然后,引入经验能控性格莱姆矩阵,不用直接求解李雅普诺夫方程即可获取格莱姆矩阵,使得该方法可扩展应用于卫星姿态控制系统;其次,考虑到经验格莱姆矩阵计算量大,采用精细积分方法提高了计算效率;最后,通过3个仿真算例,验证了本文所提方法的有效性和正确性。
[Abstract]:Control reconfiguration essentially measures the remaining controllability of the controlled system under unfavorable conditions. In view of this, the relationship between reconfiguration and residual controllability of the fault system is studied, and a reconfigurable evaluation method based on controllable character Lym matrix is proposed. Firstly, the limitations of the standard controllable character Lyme matrix are analyzed: the method is only suitable for stable systems or eigenvalues and non-stable systems with non-zero because of the need to solve Lyapunov equation. With the introduction of experiential controllable character Lyme matrix, the Grimm matrix can be obtained without directly solving Lyapunov equation. The method can be extended to satellite attitude control system. Secondly, considering the large amount of computation of empirical Grimm matrix, The precision integration method is used to improve the computational efficiency. Finally, the validity and correctness of the proposed method are verified by three simulation examples.
【作者单位】：北京控制工程研究所;
【基金】：国家杰出青年科学基金(61525301) 国家自然科学基金(61203093,61573060)
【分类号】：V448.22

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