基于LPV建模的故障诊断方法研究

Research of fault diagnosis based on LPV model Research of fault diagnosis based on LPV model

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。

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 typieal fault is simulated.Simulation results illustrate that this method is effectively, real-time, and robust.