Error analysis for correlation algorithm based servo valve frequency characteristic measurement

Huayao Chang*, Junzheng Wang, Jiangbo Zhao, Shoukun Wang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

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.

Original languageEnglish
Title of host publicationMeasuring Technology and Mechatronics Automation IV
Pages1438-1442
Number of pages5
DOIs
Publication statusPublished - 2012
Event4th International Conference on Measuring Technology and Mechatronics Automation, ICMTMA 2012 - Sanya, China
Duration: 6 Jan 20127 Jan 2012

Publication series

NameApplied Mechanics and Materials
Volume128-129
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference4th International Conference on Measuring Technology and Mechatronics Automation, ICMTMA 2012
Country/TerritoryChina
CitySanya
Period6/01/127/01/12

Keywords

  • Correlation algorithm
  • Error analysis
  • Frequency characteristic

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