Research of fault diagnosis based on LPV model

Computer Engineering and Applications ›› 2008, Vol. 44 ›› Issue (2): 218-221.

• 工程与应用 • Previous Articles Next Articles

Research of fault diagnosis based on LPV model

GOU Lin-feng,WANG Xin,WANG Yong-gen

School of Power and Energy，Northwestern Polytechnical University，Xi’an 710072，China

Received:1900-01-01 Revised:1900-01-01 Online:2008-01-11 Published:2008-01-11
Contact: GOU Lin-feng

基于LPV建模的故障诊断方法研究

缑林峰,王鑫,王镛根

西北工业大学动力与能源学院，西安 710072

通讯作者: 缑林峰

Abstract

Abstract: This paper builds aero engine mathematical model based on LPV modeling to exactly describe engine characteristics，eliminate the effect of modeling error.Sensor fault diagnosis for typical fault is simulated.Simulation results illustrate that this method is effectively，real-time，and robust.

Key words: aero engine, fault diagnosis, Linear Parameter Varying model, multi-fault-hypothesis based on testing

摘要： 建立航空发动机动态线性变参数（LPV）数学模型准确反映发动机动态特性，较好地消除了模型偏差对故障检测准确率的影响，并针对传感器典型故障进行仿真。仿真结果表明，所研究方法准确度高，实时性好，对模型误差具有较好地鲁棒性。

关键词: 航空发动机, 故障诊断, LPV模型, 多重故障假设检验

GOU Lin-feng,WANG Xin,WANG Yong-gen. Research of fault diagnosis based on LPV model[J]. Computer Engineering and Applications, 2008, 44(2): 218-221.

缑林峰,王鑫,王镛根. 基于LPV建模的故障诊断方法研究[J]. 计算机工程与应用, 2008, 44(2): 218-221.

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Research of fault diagnosis based on LPV model

基于LPV建模的故障诊断方法研究

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