The Valve Electric Actuator’s Fault Diagnosis Method Based on Principle Component Analysis and Support Vector Machines

  • Yue You-jun
  • Wang Hong-jun
  • Zong Qun
Conference paper
Part of the Advances in Intelligent and Soft Computing book series (AINSC, volume 162)


This paper, the mechanism of valve electric actuator failures is analyzed, and the fault diagnosis method based on principle component analysis (PCA) and support vector machines (SVM) is put forward. In order to reduce the dimension of feature signals, the fault diagnosis method uses PCA to extract fault feature signals. And a multi-class Support Vector Machine classifier is constructed to develop the model of failure diagnosis. The model can identify and detect the actuator’s constant gain fault, the constant deviation fault and the dead zone fault. The simulation experiment result verified its feasibility and validity.


Support Vector Machine Fault Diagnosis Principle Component Analysis Support Vector Machine Model Electric Actuator 
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Copyright information

© Springer-Verlag GmbH Berlin Heidelberg 2012

Authors and Affiliations

  • Yue You-jun
    • 1
    • 2
  • Wang Hong-jun
    • 2
  • Zong Qun
    • 1
  1. 1.School of Electrical Engineering and AutomationTianjin UniversityTianjinChina
  2. 2.Key Laboratory of Tianjin Complex Industrial Control Theory and ApplicationTianjin University of TechnologyTianjinChina

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