Assessment and Validation of Oil Sensor Systems for On-line Oil Condition Monitoring of Wind Turbine Gearboxes

Abstract The gearbox oil and the wind turbine gearbox condition are correlated. The oil can give the wind turbine operator the necessary information to plan maintenance and avoid costly repairs. Therefore, a test bench that can reproduce the gearbox operating conditions would be necessary to test oil-sensors. This paper presents a first testing approach using a Highly Accelerated Life Test / Highly Accelerated Stress Screening test chamber. It allows assessing the performance of oil properties sensors under extreme ambient temperature and vibration levels, based on measurements from a wind turbine gearbox. Results from a test on an oil properties sensor are presented and discussed.

[1]  Dingxin Yang,et al.  Oil Contamination Monitoring Based on Dielectric Constant Measurement , 2009, 2009 International Conference on Measuring Technology and Mechatronics Automation.

[2]  R. Schmidt,et al.  Failure assessment and HALT test of electrical converters , 2012, 2012 Proceedings Annual Reliability and Maintainability Symposium.

[3]  Shuangwen Sheng,et al.  Report on Wind Turbine Subsystem Reliability - A Survey of Various Databases (Presentation) , 2013 .

[4]  S. Sheng.  Investigation of Oil Conditioning, Real-Time Monitoring and Oil Sample Analysis for Wind Turbine Gearboxes (Presentation) , 2011 .

[5]  J. Turner,et al.  Electrical techniques for monitoring the condition of lubrication oil , 2003 .

[6]  Peter Tavner,et al.  Wind turbine downtime and its importance for offshore deployment. , 2011 .

[7]  M. Moon.  How clean are your lubricants , 2007 .

[8]  Eric Bechhoefer,et al.  Online particle-contaminated lubrication oil condition monitoring and remaining useful life prediction for wind turbines , 2015 .

[9]  Lei Gu,et al.  Engine lubricant warning system based on the dielectric constant , 2009, 2009 9th International Conference on Electronic Measurement & Instruments.

[10]  Paul Richardson,et al.  Relating onshore wind turbine reliability to offshore application , 2010 .

[11]  D. K. Roveti,et al.  Choosing a Humidity Sensor: A Review of Three Technologies This discussion of the operating principles of capacitive, resisitive, and thermal conductivity humidity sensors also addresses their advantages, disadvantages, and applications , 2001 .

[12]  Jan Ukonsaari,et al.  Oil cleanliness in Wind Power Gearboxes , 2012 .

[13]  Peter Tavner,et al.  Offshore Wind Turbines: Reliability, availability and maintenance , 2012 .

[14]  Eric Bechhoefer,et al.  A survey of lubrication oil condition monitoring, diagnostics and prognostics techniques and systems , 2012 .

[15]  Malcolm J. Joyce,et al.  Viscosity measurement of industrial oils using the droplet quartz crystal microbalance , 2003 .