一类质心突变飞行器的姿态控制律重构设计

空间控制技术与应用 ›› 2009, Vol. 35 ›› Issue (2): 24-28.

一类质心突变飞行器的姿态控制律重构设计

李晓云1, 姜苍华2, 段广仁2

1. 北京空间飞行器总体设计部, 北京 100094; 2. 哈尔滨工业大学控制理论与制导技术研究中心, 哈尔滨 150001

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-04-25 发布日期:2009-04-25

Attitude Controller Reconfiguration for Spacecrafts with Abrupt Change of Centroid

LI Xiaoyun1, JIANG Canghua2, DUAN Guangren2

1. Beijing Institute of Spacecraft System Engineering, Beijing 100094, China;
2. Center for Control Theory and Guidance Technology, Harbin Institute of Technology, Harbin 150001, China

Received:1900-01-01 Revised:1900-01-01 Online:2009-04-25 Published:2009-04-25

摘要/Abstract

摘要： 研究了一类质心突变飞行器姿态控制系统在发生故障时的一种控制律重构方法。采用以Unscented卡尔曼滤波为基本估计单元且用输出残差为故障诊断指标的交互式多模型算法实时地对飞行器故障情况进行检测与诊断。当诊断出故障时，重构控制律的参数对系统进行补偿控制，使得故障下飞行器的姿态跟踪精度得以维持。通过数值仿真验证了该方法的有效性。

关键词: 控制律重构, 交互式多模型, Unscented卡尔曼滤波, 姿态跟踪

Abstract: This paper proposes a fault-tolerant reconfigurable controller for attitude control system of spacecrafts with abrupt changes of centroid. A novel interacting multiple model algorithm, based on the Unscented Kalman filter and a performance index using output residuals, is presented to diagnose the faults. Once a fault is detected and isolated, controller parameters can be reconfigured to compensate the loss of performance and keep the good attitude tracking accuracy of the spacecraft. Numerical simulations validate the effectiveness of the proposed method.

Key words: controller reconfiguration, interactive multiple model, Unscented Kalman filter, attitude tracking

中图分类号:

TP277

李晓云1, 姜苍华2, 段广仁2. 一类质心突变飞行器的姿态控制律重构设计[J]. 空间控制技术与应用, 2009, 35(2): 24-28.

LI Xiaoyun1, JIANG Canghua2, DUAN Guangren2. Attitude Controller Reconfiguration for Spacecrafts with Abrupt Change of Centroid[J]. , 2009, 35(2): 24-28.

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