中国科技核心期刊

中文核心期刊

CSCD来源期刊

空间控制技术与应用

• 论文与报告 • 上一篇    下一篇

基于近邻保持嵌入的卫星姿态控制系统微小故障检测

刘敏,陆宁云,肇刚,姜斌   


  1. 1.南京航空航天大学自动化学院,南京 210016;2.西安卫星测控中心,西安 710043.  
  • 出版日期:2018-04-25 发布日期:2018-05-16
  • 作者简介:作者简介:刘敏(1994—),女,硕士研究生,研究方向为故障检测与故障预测;陆宁云(1978—),女,南京航空航天大学自动化学院教授,博士生导师,主要从事复杂工业过程建模,过程监测以及故障诊断研究;肇刚(1962—),男,西安卫星测控中心总工程师,主要研究方向为航天器测控;姜斌(1966—),男,南京航空航天大学自动化学院教授,博士生导师,主要从事故障检测和容错控制研究.
  • 基金资助:

    航天器在轨故障诊断与维修重点实验室基金和装备预研国防科技重点实验室基金(61422080307).  

     

Incipient Fault Detection Method of Satellite Attitude Control System Based on Neighborhood Preserving Embedding

 LIU  Min, LU  Ning-Yun, ZHAO  Gang, JIANG  Bin   

  1. 1.College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; 2.Xi’an Satellite Measurement and Control Center, Xi’an 710043, China.
  • Online:2018-04-25 Published:2018-05-16
  • Supported by:

    Supported by Key Laboratory of Spacecraft InOrbit Fault Diagnosis and Maintenance Foundation and Equipment PreResearch Key Laboratory of National Defense Science and Technology Foundation under Grant (61422080307).

摘要:   摘要: 以卫星姿态控制系统(ACS)为研究对象,以微小故障检测为研究目标,提出一种改进的近邻保持嵌入算法(EWMADNPE).针对近邻保持嵌入(NPE)算法中邻域参数无法自动设定的缺陷,通过引入动态邻域,使得动态近邻保持嵌入算法(DNPE)可根据流形的样本密度动态地选取近邻点计算权值重构矩阵.将指数加权移动平均(EWMA)引入DNPE,通过EWMA对历史故障数据的累加作用,建立SPE统计量实现微小故障的检测,并仿真验证了EWMADNPE算法对卫星ACS微小故障检测的有效性和可行性.  

关键词: 关键词: 卫星姿态控制系统, 微小故障检测, 近邻保持嵌入, 近邻参数

Abstract: Abstract:In this paper, an advanced neighborhood preserving embedding method combined with exponentially weighted moving average (EWMADNPE) is proposed in incipient fault detection for satellite’s attitude control system (ACS).Considering the artificial set of neighborhood parameters in neighborhood preserving embedding (NPE) algorithm, the dynamic neighborhood selection is introduced, so that the weights reconstruction matrix can be selected according to the sample density of the manifold. On the basis of this, the EWMADNPE algorithm is used to establish the squared prediction error (SPE) statistic in fault detection (FD) by exponentially weighted moving average (EWMA). The case study on a simulated satellite ACS demonstrates the effectiveness and feasibility of the proposed method.    

Key words: Keywords:attitude control system, incipient fault detection, neighborhood preserving embedding, neighborhood parameters

中图分类号: 

  • V448.2