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基于自适应阈值的粒子滤波非线性系统故障诊断

蒋栋年 李炜

蒋栋年, 李炜. 基于自适应阈值的粒子滤波非线性系统故障诊断[J]. 北京航空航天大学学报, 2016, 42(10): 2099-2106. doi: 10.13700/j.bh.1001-5965.2015.0611
引用本文: 蒋栋年, 李炜. 基于自适应阈值的粒子滤波非线性系统故障诊断[J]. 北京航空航天大学学报, 2016, 42(10): 2099-2106. doi: 10.13700/j.bh.1001-5965.2015.0611
JIANG Dongnian, LI Wei. Fault diagnosis of particle filter nonlinear systems based on adaptive threshold[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(10): 2099-2106. doi: 10.13700/j.bh.1001-5965.2015.0611(in Chinese)
Citation: JIANG Dongnian, LI Wei. Fault diagnosis of particle filter nonlinear systems based on adaptive threshold[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(10): 2099-2106. doi: 10.13700/j.bh.1001-5965.2015.0611(in Chinese)

基于自适应阈值的粒子滤波非线性系统故障诊断

doi: 10.13700/j.bh.1001-5965.2015.0611
基金项目: 国家自然科学基金(61364011);甘肃省自然科学基金(2015GS05221)
详细信息
    作者简介:

    蒋栋年,男,博士研究生,讲师。主要研究方向:动态系统故障诊断与容错控制。E-mail:dreamjdn@126.com;李炜,女,硕士,教授。主要研究方向:动态系统故障诊断与容错控制。Tel.:0931-2976020,E-mail:liwei@lut.cn

    通讯作者:

    李炜,Tel.:0931-2976020,E-mail:liwei@lut.cn

  • 中图分类号: TP277

Fault diagnosis of particle filter nonlinear systems based on adaptive threshold

Funds: National Natural Science Foundation of China (61364011); Natural Science Foundation of Gansu Province of China (2015GS05221)
  • 摘要: 针对实际非线性系统传统方法难以实现可靠故障诊断的问题,采用粒子滤波算法,利用对数似然函数和作为评价指标,并借助自适应阈值的设计,研究了非线性非高斯系统的故障检测和故障隔离。阈值的选取,是准确判别系统是否发生故障的标准,本文通过分析非线性系统残差的统计特性,在判定残差统计特性成正态分布的基础上,设计了一种基于粒子滤波故障诊断的自适应阈值方法,减少了故障诊断的漏报和误报。通过非恒温连续搅拌水箱式反应堆的仿真实例,验证了该方法在故障诊断中的准确性和有效性。

     

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出版历程
  • 收稿日期:  2015-09-17
  • 网络出版日期:  2016-10-20

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