Application of Kernel GDA to Performance Monitoring and Fault Diagnosis for Rotating Machinery |
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Authors: | MA Si-le ZHANG Xi SHAO Hui-he |
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Institution: | [1]School of Control Science and Engineering,Shandong University,Jinan 250061,China [2]Guangdong Electric Power Research Institute,Guangzhou 510600,China [3]School of Electronic,Information and Electrical Engineering,Shanghai Jiaotong University,Shanghai 200240,China |
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Abstract: | Faults in rotating machine are difficult to detect and identify,especially when the system is complex and nonlinear.In order to solve this problem,a novel performance monitoring and fault diagnosis method based on kernel generalized discriminant analysis(kernel GDA,KGDA) was proposed.Through KGDA,the data were mapped from the original space to the high-dimensional feature space.Then the statistic distance between normal data and test data was constructed to detect whether a fault was occurring.If a fault had occurred,similar analysis was used to identify the type of faults.The effectiveness of the proposed method was evaluated by simulation results of vibration signal fault dataset in the rotating machinery,which was scalable to different rotating machinery. |
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Keywords: | kernel generalized discriminant analysis (KGDA) performance monitoring fault diagnosis rotating machinery |
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