Articles About wind turbines
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The proof of the reliability of a gear drive is now an additional requirement. In Europe, the acceptance authorities for wind turbines are requesting a system reliability proof from gearbox manufacturers. The AGMA committee reviewing the AGMA 6006 standard for wind turbines is considering adding a chapter about design for reliability. However, reliability considerations are not new; NASA, for example, was in the 1980s using reliability concepts for gear drives.
The Department of Energy estimates that 4 million megawatts of potential powerâÂ€”four times the amount all U.S. power plants combined currently produceâÂ€”exists in offshore wind energy. Construction of AmericaâÂ€™s first offshore wind turbines began in July. The wind farm, which is being constructed off the coast of Block Island, RI, will consist of five turbines. Together, they will produce 30 MW.
After a sluggish 2013, annual installations of new wind turbines grew by 44% in 2014, according to the Global Wind Energy Council. And while much of that growth has been in AsiaâÂ€” particularly China, which now leads the world with 114 GW of installed capacityâÂ€”the USA, Europe, and the rest of the world expect steady growth for the next couple of years as well (Fig. 1).
Th e signing of a contract for more than 5,000 sets of SKFâÂ€™s latest high-capacity cylindrical roller bearings (HCCRB) for wind turbines will impart added load-carrying capacity, more reliability and longer life to the Nanjing Gear CompanyâÂ€™s (NGC) line of gearboxes for wind generation applications.
A critical problem for wind turbine gearboxes is failure of rolling element bearings where axial cracks form on the inner rings. This article presents field experience from operating wind turbines that compares the performance of through-hardened and carburized materials. It reveals that through-hardened bearings develop WEA/WECs and fail with axial cracks, whereas carburized bearings do not. The field experience further shows that a carburized bearing with a core having low carbon content, high nickel content, greater compressive residual stresses, and a higher amount of retained austenite provides higher fracture resistance and makes carburized bearings more durable than through-hardened bearings in the wind turbine environment.
One of the largest components manufactured by Schaeffler last year was a double-row tapered roller bearing featuring an outer diameter measuring 3.6 meters and a weight just over nine tons.
U.S. wind turbine growth puts a new spin on bearing manufacture.
Wind turbines are getting bigger than ever, and the manufacturing infrastructure that facilitates their construction needs to start growing with them.
LEGO & Vestas Collaborate on Sustainability Project.
Wind is a form of solar energy. Winds are caused by the uneven heating of the atmosphere by the sun, the irregularities of the earthâÂ€™s surface, and rotation of the earth. Wind Turbines convert the kinetic energy in wind into mechanical power.
For a 5-megawatt wind turbine prototype, aerodyn employs the latest control and software technologies, including a comprehensive PC-based control solution and the new modular TwinCAT Wind Framework. The TwinCAT Wind Framework features the latest software engineering and Big Data applications to extend current Industry 4.0 concepts to the wind energy industry. The modular software supports, for example, the direct provision of sensor data to the operatorâÂ€™s database, and in general enables the easy adaption of the wind turbine operation management to future requirements.
Coming off of a stellar 2017 for the wind power industry, Wind Power 2018 is all about carrying that momentum forward.
The chemical and physical properties of gear oils may change, depending - more or less - upon their formulation and the environmental conditions under which they are used. This is why - after three years of use in a wind turbine - a gear oil was examined to determine if indeed changes were evident and if the protection of the gears and rolling bearings still met the same requirements as would be expected of fresh oil. Our findings revealed that the existing gear oil - as well as its ability to protect the gears and rolling bearings - had degraded very little compared to fresh oil.
The latest developments for wind turbines from Voith Wind rely on proven technologies.
Despite posting its slowest quarter since early 2007, AWEA remains optimistic that the wind industry can and will work successfully with the revolving doors in Washington.
After getting positive feedback on changes made to the show last year, AWEA Wind Power is doubling down and taking their ongoing transformation even further.
A look at recent installations, plus interviews with some wind industry insiders.
Bearing subsystem life and reliability explained.
In order to analyze the different gear oils suitable for the lubrication of wind turbine gearboxes, five fully formulated ISO VG 320 gear oils were selected. In between the selected gear oils, four PAO base oils can be found: PAOR, PAOM, PAOC and PAOX. A mineral-based oil (MINR) was also included as reference.
In the late 1940s, the U.S. auto industry started an exciting experiment and spent decades on it. One result came in '63, when the Turbine was introduced by Chrysler Corp., now a part of Fiat Chrysler Automobiles (FCA). In appearance, the two-door, four-passenger car looked like a regular car, but it wasnââ‚¬â„¢t. Under its sleek shell, the car had a jet engine.
A practical guide to adopting digital technology in wind energy applications.
Prototype and Process Development Ensuring Stable Quality at the Highest Level
Wind is the talk of the town. It has become especially relevant to the power transmission community where bearings, gears, couplings, motors and gearboxes are providing the equipment for this thriving alternative energy industry. It comes as no surprise that the Windpower 2009 Conference and Exhibition, arriving in Chicago from May 4âÂ€“7, will be the largest gathering of wind energy professionals and technologies to date.
The first trade show dedicated specifically to small and community wind took place in Detroit, Michigan November 3âÂ€“5. Denise Bode, American Wind Energy Association (AWEA) CEO, was pleased with the turnout for the event and the increasing potential for this segment of the wind energy market.
Calling on engineers and maintenance power plant personnel, industrial users of low- and medium-voltage motors and generators and motor repair shop staff...
A Q&A with N.K. Chinnusamy, president of Excel Gear of Roscoe, IL.
Does the U.S. renewable energy solution lie offshore? An update on the status of offshore wind projects.
Wind turbine gearboxes are subjected to a wide variety of operating conditions, some of which may push the bearings beyond their limits. Damage may be done to the bearings, resulting in a specific premature failure mode known as white etching cracks (WEC), sometimes called brittle, short-life, early, abnormal or white structured flaking (WSF). Measures to make the bearings more robust in these operating conditions are discussed in this article.
The growth of worldwide energy consumption and emerging industrial markets demands an increase of renewable energy shares. The price pressure coming from coal, oil, nuclear and natural gas energy - combined with enormous worldwide production capacities for components of wind turbines - make wind energy a highly competitive market. The testing and validation of gearboxes within the test rig and the turbine environment attract a strong focus to the needs of the industry. The following contribution sums up the typical process requirements and provides examples for successful system and component verifications based on field measurements.
In recent years the estimation of gearbox power loss is attracting more interest âÂ€” especially in the wind turbine and automotive gearbox industry âÂ€” but also in industrial gearboxes where heat dissipation is a consideration as well. As new transmissions concepts are being researched to meet both ecological and commercial demands, a quick and reliable estimation of overall efficiency becomes inevitable in designing the optimal gearbox.
News Items About wind turbines
1 IQwind and Guascor Partner to Commercialize Variable IQGear Technology for Wind Turbines (September 10, 2009)
IQwind and Guascor announced that they will partner to commercialize and bring to market the IQGear, a high efficiency variable gearbox f...
2 Drive and Control Technology for Wind Turbines Brochure Published by Bosch Rexroth (April 27, 2009)
Rexroth announces a new brochure, Drive & Control Technology for Wind Turbines, highlighting its industrial hydraulics technology dev...
3 Mayr Provides Maintenance-Free Brakes for Wind Turbines (February 21, 2012)
The application of safety brakes in wind turbine pitch drives requires extremely conscientious dimensioning and precise knowledge of brak...
4 Innovative Drivetrain Testing for Wind Turbines Nears Completion (April 11, 2016)
Wind energy researchers have entered the final phase of testing a next-generation drivetrain—made up of the components of a wind tu...
5 Moog Introduces New Pitch Control Slip Ring for Wind Turbines (October 20, 2016)
Moog Components Group Limited, a division of Moog Inc., has announced the introduction of a new pitch control slip ring. The EPA3 slip ri...
6 Renk AG Offers Intelligent Solutions for Wind Turbines (October 12, 2018)
At WindEnergy 2018 in Hamburg, Renk AG presented two product innovations with the EQ-Gear gearbox and the EQ-Flex couplings. The gearbo...