文档介绍：April 2003 ECN-C--03-047
Wind Turbine Operation & Maintenance
based on Condition Monitoring
WT-Ω
Final report
. Verbruggen
Acknowledgement
This report is part of the project entitled WT_Ω(WT_OMEGA = Wind Turbine Operation and
Maintenance based on Condition Monitoring) which has been carried out in co-operation with
Lagerwey the WindMaster, Siemens Nederland, and SKF.
The work was partly financed by NOVEM, and partly by ECN Wind Energy.
ECN project number :
Novem contract number : -9960
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CONTENTS
SUMMARY 5
1. INTRODUCTION 7
Background 7
Objectives 7
2. LITERATURE STUDY (SUMMARY) 11
Condition Monitoring Techniques 11
Vibration Analysis 11
Oil analysis 12
Thermography 12
Physical condition of materials 12
Strain measurement 13
Acoustic monitoring 13
Electrical effects 13
Process parameters 13
Performance monitoring 13
Possibilities of application in wind turbines 14
Rotor14
BLADES14
PITCH MECHANISM 14
Nacelle 14
GEARBOX AND MAIN BEARING 14
GENERATOR 15
HYDRAULIC SYSTEM 15
YAW SYSTEM 15
Economical Aspects 15
Conclusions 16
3. SELECTED SUB-SYSTEMS, COMPONENTS AND CM-TECHNIQUES 19
Global condition monitoring techniques 19
Pitch mechanism 19
Gear box 21
Main bearing 21
Sound registration 22
Blade monitoring 22
4. INSTRUMENTATION OF THE LAGERWEY 50/750 23
5. INSTRUMENTATION OF THE ENRON 1,5 S 25
6. CONCLUSIONS 29
7. REFERENCES 31
APPENDIX A: MEASUREMENT AND INSTRUMENTATION PLAN OF THE
LAGERWEY 50/750 33
APPENDIX B: MEASUREMENT AND INSTRUMENTATION PLAN OF THE ENRON
1,5S TURBINE 37
ECN-C--03-047 3
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SUMMARY
In 1999, ECN has taken the initiative to investigate the further application of condition
monitoring for wind turbines. With financial support from NOVEM, ECN has carried out the
project WT-Ω.
The proj