Fault detection and isolation of a dual spool gas turbine engine using dynamic neural networks and multiple model approach

被引:131
作者
Vanini, Z. N. Sadough [1 ]
Khorasani, K. [1 ]
Meskin, N. [2 ]
机构
[1] Concordia Univ, Dept Elect & Comp Engn, Montreal, PQ H3G 1M8, Canada
[2] Qatar Univ, Dept Elect Engn, Doha, Qatar
关键词
Fault diagnosis; Dynamic neural networks; Multiple model scheme; Bank of detection and isolation filters; Dual spool gas turbine engine;
D O I
10.1016/j.ins.2013.05.032
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper, a fault detection and isolation (FDI) scheme for an aircraft jet engine is developed. The proposed FDI system is based on the multiple model approach and utilizes dynamic neural networks (DNNs) to accomplish this goal. Towards this end, multiple DNNs are constructed to learn the nonlinear dynamics of the aircraft jet engine. Each DNN corresponds to a specific operating mode of the healthy engine or the faulty condition of the jet engine. Using residuals obtained by comparing each network output with the measured jet engine output and by invoking a properly selected threshold for each network, reliable criteria are established for detecting and isolating faults in the jet engine components. The fault diagnosis task consists of determining the time as well as the location of a fault occurrence subject to presence of unmodeled dynamics, disturbances, and measurement noise. Simulation results presented demonstrate and illustrate the effectiveness of our proposed dynamic neural network-based FDI strategy. (C) 2013 Elsevier Inc. All rights reserved.
引用
收藏
页码:234 / 251
页数:18
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