Fault Diagnosis Based on Bond Graph for Hydraulic Variable Pitch System

被引：0
|
作者：
Yang Xiyun [1 ]
Liu Wei [2 ]
Li Jinxia [1 ]
机构：
[1] N China Elect Power Univ, Sch Control & Comp Engn, Beijing 102206, Peoples R China
[2] State nucl elect power planning design & res Inst, Beijing 100094, Peoples R China
来源：
MEASURING TECHNOLOGY AND MECHATRONICS AUTOMATION, PTS 1 AND 2 | 2011年 / 48-49卷
关键词：
hydraulic variable pitch system; fault diagnosis; bond graph model; fault tree;
D O I：
10.4028/www.scientific.net/AMM.48-49.1401
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A fault diagnosis based on bond graph model is proposed for hydraulic variable pitch system. Because the knowledge representation of bond graph model can provide information of cause and effect between components, a bond graph model of hydraulic variable pitch system is given above rated wind speed. A fault tree, using cause and effect analysis by back propagation, is developed. Qualitative value of parameters is assigned and the fault source is detected by analyzing boundary parameters of fault tree. Comparing with quantitative fault diagnosis based on model, the bond graph fault diagnosis is more flexible and has good completeness.
引用
收藏
页码：1401 / +
页数：2
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