计算机工程与应用 ›› 2009, Vol. 45 ›› Issue (9): 233-236.DOI: 10.3778/j.issn.1002-8331.2009.09.068

• 工程与应用 • 上一篇    下一篇

混杂系统故障诊断的强跟踪滤波器方法

李雄杰1,2,周东华2   

  1. 1.浙江工商职业技术学院,浙江 宁波 315012
    2.清华大学 自动化系,北京 100084
  • 收稿日期:2008-01-28 修回日期:2008-04-09 出版日期:2009-03-21 发布日期:2009-03-21
  • 通讯作者: 李雄杰

Fault diagnosis based on strong tracking filter for hybrid systems

LI Xiong-jie1,2,ZHOU Dong-hua2   

  1. 1.Zhejiang Business Technology Institute,Ningbo,Zhejiang 315012,China
    2.Department of Automation,Tsinghua University,Beijing 100084,China
  • Received:2008-01-28 Revised:2008-04-09 Online:2009-03-21 Published:2009-03-21
  • Contact: LI Xiong-jie

摘要: 混杂系统是近年来研究的热点,针对混杂系统故障诊断难题,在对混杂系统描述的基础上,给出了混杂系统状态估计及离散模态识别的强跟踪滤波器算法,并将该算法扩展到状态与参数的联合估计,最后利用修正的Bayes算法作出故障判决,实现了混杂系统的故障诊断。通过对两容水箱典型混杂系统故障诊断的仿真实验,验证了该方法的有效性。

关键词: 混杂系统, 强跟踪滤波器, 故障诊断, 状态估计

Abstract: Hybrid system is one of the hot research topics in recent years.Aiming at the problem of fault diagnosis,strong tracking filter algorithm for hybrid system state estimation and discrete modal identification is given,and this algorithm is spreaded to joint estimation of state and parameters.Modified Bayes algorithm is utilized to decise,and fault diagnosis of hybrid system is implemented.According to simulation experiment about fault diagnosis of two-tank,the typical hybrid system,the algorithm is proved effective.

Key words: hybrid system, strong tracking filter, fault diagnosis, state estimation