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Refurbishment of a Leading 2.3 Yaw Drive BackgroundWith a total installed capacity of more than 7,500 MW across the US, this 2.3 platform has been the flagship design of the European OEM’s wind turbine portfolio. Despite an exceptional track record for performance and reliability, this platform has experienced several recurring issues with the yaw drives according to many owners. As an experienced wind turbine repair and engineering service provider, Broadwind Services has identified a common source of failure with the internal planet carrier of the 2.3 yaw drives. In turn, Broadwind has developed a number of service techniques to refurbish and improve the reliability of these components.
Engineering Approach
Secondly, Broadwind Services moved to machined parts instead of castings, primarily due to the cost advantages in low volume production. In addition, castings can be quite porous and contain voids – which tend to form in the spaces between crystals – are where cracks generally begin. A machined part therefore eliminates minor imperfections that routinely occur in castings and can cause premature failure at a lower load than the original design intent of the drive components.
Let Us Boost Gearbox Productivity for LessSee for yourself! Get more WTG energy production and profits, while reducing O&M costs and major repairs with a remanufactured gearbox from Broadwind Services. You’ll get more productivity for less costs, so be sure to contact us today to request a quote!
Request A Quote by Calling:1.708.780.4800or visit www.bwen.com
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Broadwind Develops Service Techniques to Improve Reliability of 2.3 MW Yaw Drive
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About Broadwind Energy
Visit http://www.bwen.com/wind-turbine-services today to learn how we can help you prevent major failures before they happen.
Refurbishment Process As part of the refurbishment process for the 2.3 yaw drive, Manufacturing Engineer Ron Gilmer helped develop the following steps performed by Broadwind technicians:
• Disassembly of yaw drive and preparation of inspection report
• Feasibility and cost—benefit analysis of the potential rebuild
• Cleaning of all parts to remove residual metal debris• Assessment of salvageable parts and housings• Replacement of all bearings with new
high—quality bearings• Replacement of all damaged parts• Reassembly of yaw drive• Painting of components• Operational testing and validation prior to
return to service
Conclusions Broadwind’s approach to refurbishing the 2.3 yaw drive improves part quality without any significant change to the original component design. With a small increase in the material strength of the planet carrier, Broadwind’s enhancement features a replacement part machined in low volume rather than a new planet carrier casting. This solution results in a higher quality, more durable, and more cost—effective yaw drive alternative for owners of this wind turbine platform.
Broadwind Energy (NASDAQ: BWEN) applies decades of deep industrial expertise to innovate integrated solutions for customers in the energy and infrastructure markets. From gears and gearing systems for wind, oil and gas, and mining applications, to wind towers, to comprehensive remanufacturing of gearboxes and blades, to operations and maintenance services, and industrial weldments, we have solutions for the energy needs of the future. With facilities throughout the U.S., Broadwind Energy’s talented team of more than 800 employees is committed to helping customers maximize performance of their investments – quicker, easier and smarter. a higher quality, more durable, and more cost effective yaw drive alternative for owners of this wind turbine platform.
WATCH THE VIDEO AT:http://www.bwen.com/video-drivemax-solutions
Before
Damaged Part
As—Received
Replacement Part
Post—Refurbishment
After