航空兵器Issue(2)：69-76,8.DOI:10.19297/j.cnki.41-1228/tj.2018.02.013
卫星姿态控制系统执行器的故障诊断方法研究
Research on Actuator Fault Diagnosis Method for Satellite Attitude Control System
陈辛 1魏炳翌 2闻新2
作者信息
- 1. 北京航天自动控制研究所,北京 100854
- 2. 南京航空航天大学航天学院,南京 210016
- 折叠
摘要
Abstract
Small satellites have the advantages of low cost, small size and high flexibility.Many small satellites that work together to accomplish space exploration missions has become one of the focuses of international space technology development.Aiming at the common faults of the satellite attitude control system with a pulsed plasma thruster(PPT)as an actuator,a fault diagnosis system based on a new cas-cade feedforward neural network is presented.Using self-organizing neural network training algorithm, combining training error and topology information,the neural network structure is optimized and its gener-alization performance is improved.Then,the neural network is used to simulate the dynamic characteris-tics of PPT,and fault diagnosis is carried out.Simulation results show that the training algorithm can ef-fectively improve the network comprehensive capability and enhance the validity and reliability of the fault diagnosis strategy.关键词
小卫星/姿态控制/神经网络/故障诊断/脉冲等离子体推进器Key words
small satellite/attitude control/neural network/fault diagnosis/PPT分类
航空航天引用本文复制引用
陈辛,魏炳翌,闻新..卫星姿态控制系统执行器的故障诊断方法研究[J].航空兵器,2018,(2):69-76,8.
