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Application of Fault Tree and Model Based Fault Diagnosis in Actuation System of Hydro turbine Governors

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3 Author(s)
Zhihuai Xiao ; Coll. of Power & Mech. Eng., Wuhan Univ. ; Jiang Guo ; Xiangping Zhao

A single diagnostic agent is difficult in solving real world problems. In this paper, we will discuss integrated distributed fault diagnosis system. Based on analyzing the failure mechanism actuation system of hydro turbine governors, a new approach combination of analyzing these trees qualitatively is offered with the aid of the tree's minimum cut-set matrix and model-based methods. The procedure is illustrated by reference to servo valve malfunction during start up in simulation. The result have proved that the proposed method is simple reliable and present the fault in good accuracy

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Intelligent Control and Automation, 2006. WCICA 2006. The Sixth World Congress on  (Volume:2 )

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