| 引用本文: | 刘娇娇,薛婷,钟麦英.基于事件触发强跟踪滤波的卫星系统故障估计[J].控制理论与应用,2025,42(2):272~280.[点击复制] |
| LIU Jiao-jiao,XUE Ting,ZHONG Mai-ying.An event-triggered strong tracking filter approach to fault estimation for satellite systems[J].Control Theory and Technology,2025,42(2):272~280.[点击复制] |
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| 基于事件触发强跟踪滤波的卫星系统故障估计 |
| An event-triggered strong tracking filter approach to fault estimation for satellite systems |
| 摘要点击 2131 全文点击 22 投稿时间：2022-08-18 修订日期：2024-09-06 |
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| DOI编号 10.7641/CTA.2023.20739 |
| 2025,42(2):272-280 |
| 中文关键词 卫星姿态控制 执行机构故障 动态事件触发机制 强跟踪滤波器 增广系统 |
| 英文关键词 satellite attitude control actuator faults dynamic event-triggered mechanism strong tracking filter augmented system |
| 基金项目 国家自然科学基金项目(62233012, 62103247), 山东省泰山学者特聘教授项目资助. |
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| 中文摘要 |
| 针对卫星姿态控制系统执行机构故障估计问题, 本文提出一种基于动态事件触发的强跟踪滤波(STF)方法.通过将系统执行机构故障增广为系统状态向量, 在动态事件触发机制下, 采用STF方法设计故障估计器, 并对估计器进行线性化处理得到状态估计误差系统, 从而实现增广状态估计误差与事件触发误差完全解耦. 基于此, 故障估计器的设计问题转化为寻找能够最小化增广状态估计误差协方差的滤波器增益矩阵, 且增益矩阵的设计与事件参数设置相互独立. 与现有的事件触发故障估计方法相比, 本文所提方法的主要贡献在于能够使得增广状态估计误差与事件触发误差完全解耦. 最后, 通过一个卫星姿态控制系统验证了所提算法的有效性. |
| 英文摘要 |
| A dynamic event-triggered strong tracking filter (STF) approach to actuator fault estimation of satellite attitude control system is proposed in this paper. Under the dynamic event-triggered mechanism, an STF based fault estimator is designed by augmenting the actuator fault as a system state vector, and then a state estimation error system is obtained by linearizing such an estimator. In this way, the full-decoupling of the augmented state estimation error from the eventtriggered transmission error is realized. Based on this, the design problem of the fault estimator is converted into finding a filter gain matrix that can minimize the covariance of the augmented state estimation error. It is shown that the design of the filter gain matrix is independent from the event parameters. Compared with the existing event-triggered fault estimation approaches, the novelty of the proposed method lies in its capability to achieve a full-decoupling of the augmented state estimation error from the event-triggered transmission error. Finally, a simulation experiment is carried out on a satellite attitude control system to show the effectiveness of the proposed method. |
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