卫星控制系统离散积分滑模容错控制

被引:11
作者
段文杰
王大轶
刘成瑞
机构
[1] 北京控制工程研究所
[2] 空间智能控制技术重点实验室
关键词
卫星; 滑模; 容错控制; 不确定性; 健康因子;
D O I
暂无
中图分类号
V448.2 [航天器制导与控制];
学科分类号
摘要
卫星控制系统是采样控制系统,对它来讲,不确定性离散系统容错控制方法非常重要.本文提出了一种离散积分滑模容错控制方案,用于调节动量轮有故障的卫星姿态,其主要部分是设计控制器和控制分配方法.本文对含有匹配和不匹配的不确定性的离散多输入多输出系统,设计了一种离散积分滑模控制器,分析了匹配的和不匹配的不确定性对闭环系统稳定性的影响,得出了系统状态的界.应用可达集方法确定控制分配方案时,本文改变可达集表面的搜索顺序,提高了求解速度.以五动量轮卫星模型为例,将本文方法应用于含多故障、健康因子不准确、匹配不确定性和不匹配不确定性的卫星控制系统中,理论和仿真的结果一致.
引用
收藏
页码:133 / 141
页数:9
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