Up Time Magazine - February/March 2009 - (Page 59) limits are set up carefully, and they need to be refined frequently. Too many on-line monitoring systems generate “thousands of alarm exceptions” – as a result faith in the system is lost. There are methods that can be used to set up effective alarm limits, such as statistical alarm generation, but that will need to be covered in a separate article. Conclusion Wind turbines are being installed at an amazing pace, and while some of the earlier reliability problems have been resolved, there is no doubt that reliability will be an on-going issue. Condition monitoring technologies such as vibration monitoring, oil analysis, and performance monitoring will play a very important role in the viability of wind farm operation. As long as monitoring system vendors and wind turbine manufacturers continue to improve their designs, focus on reliability, and share information, renewable energy from wind power will continue to grow as a source of affordable and clean energy around the world. References 1. European Wind Energy Association: http:// www.ewea.org/index.php?id=58 2. U.S. Department of Energy, Energy Efficiency and Renewable Energy, Annual Report on U.S. Wind Power Installation, Cost, and Performance, Trends: 2007 (May 2008) 3. European Wind Energy Association: http:// www.ewea.org/fileadmin/ewea_documents/documents/publications/WD/2008_ november/Viewpoint.pdf 4. “Barack Obama and Joe Biden: New Energy For America” http://www.barackobama. com/pdf/factsheet_energy_speech_080308. pdf 5. American Wind Energy Association: http:// www.awea.org/pubs/factsheets/Market_ Update.pdf 6. “The Gearbox Reliability Collaborative”, Brian McNiff, McNiff Light Industry: http://www.sandia.gov/wind/2007Reliability WorkshopPDFs/Tues-1-A-BrianMcNiff.pdf 7. “Distributed Generation Drivetrain for Windpower Application”, by Dehlsen Associates, LLC, for California Energy Commission Public Interest Energy Research Program - CEC-500-2006-018 8. http://au.video.yahoo.com/watch/ 4262445/11458525 Acknowledgements I would like to acknowledge the assistance given by the following helpful people: Pedro Cortez, SCM, Costa Rica; John van Bynen, Commotion Systems, Australia; Shaw Makaremi, Clipper Windpower, USA; David Clarke, Turning Point, USA; Steve Barber, Windrisk, USA. Thanks guys! Jason Tranter is the founder of Mobius and Mobius Institute, and the author of the iLearnVibration training product, Interpreter analysis assistance tool, the Category I/II/III vibration training courses and simulators, and other products, courses and articles. Jason has been involved with vibration analysis since 1984. Mobius has offices in the USA and Australia, and training centers in 30 countries. Contact Jason via jason@mobiusinstitute.com or www.mobiusinstitute.com 4-20 mA vibration monitoring Continuous monitoring of critical assets and balance of plant 4-20 mA data is a standard input for a PLC, DCS or SCADA system Ideal for real-time monitoring, alarming and simplified analysis Makes distributed condition monitoring cost effective and scalable O NT S? STA SULT T IN RE AN TION W DI ON IL C On-site, portable or on-line: Fuel and lubricating oil test kits, ferrous debris analyzers and sampling equipment from Kittiwake. Water in Oil, Viscosity, Density, Insolubles, Base Number and more www.kittiwake-americas.com Contact us; Kittiwake Americas 678.905.5630 x801 keithm@kittiwake.com kittiwake-americas.com Wilcoxon Research Inc 20511 Seneca Meadows Parkway Germantown, MD 20876 USA Tel: 301 330 8811 Fax: 301 330 8873 Email: sensors@wilcoxon.com www.wilcoxon.com www.meggitt.com cmyk www.uptimemagazine.com 59 http://au.video.yahoo.com/watch/4262445/11458525 http://www.ewea.org/index.php?id=58 http://www.ewea.org/index.php?id=58 http://www.ewea.org/fileadmin/ewea_documents/documents/publications/WD/2008_november/Viewpoint.pdf http://www.ewea.org/fileadmin/ewea_documents/documents/publications/WD/2008_november/Viewpoint.pdf http://www.barackobama.com/pdf/factsheet_energy_speech_080308.pdf http://www.barackobama.com/pdf/factsheet_energy_speech_080308.pdf http://www.barackobama.com/pdf/factsheet_energy_speech_080308.pdf http://www.awea.org/pubs/factsheets/Market_Update.pdf http://www.awea.org/pubs/factsheets/Market_Update.pdf http://www.awea.org/pubs/factsheets/Market_Update.pdf http://www.sandia.gov/wind/2007ReliabilityWorkshopPDFs/Tues-1-A-BrianMcNiff.pdf http://www.mobiusinstitute.com http://www.kittiwake-americas.com http://www.kittiwake-americas.com http://www.kittiwake-americas.com http://www.wilcoxon.com http://www.meggitt.com http://www.uptimemagazine.com
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