Press Release
Herausgeber: Bachmann Monitoring GmbH
First plug-in on the market to measure unbalance
- Prototype successfully provides plant operator with regular updates on balance condition.
- The assessment of unbalance becomes fast and cost effective.
- Blade Unbalance Calculator will be first demonstrated at WindEnergy Hamburg
Rudolstadt (renewablepress) - After successful testing of the prototype, a new plug-in to Bachmann’s Condition Monitoring System provides plant operators with regular updates on the balance condition of their wind turbines’ blades. This makes the condition monitoring specialist from Germany the first wind energy supplier to provide a measurement of unbalance without a lengthy and expensive process. In field tests with development partner BKW Wind Service GmbH involving mass addition to blades, the calculated unbalance has shown excellent agreement with the weight actually fitted. The product, by the name Blade Unbalance Calculator, will be seen at the Wind Energy Hamburg trade show. The plug-in to the CMS runs to provide an estimate of the mass unbalance in kgm, based upon a few structural parameters and the output from a tower sensor fitted at the centre of the nacelle. Not only does the output provide a direct measure of balance quality, it also distinguishes between aerodynamic and mechanical effects, ensuring plant operators prepare for the correct maintenance action.
„Studies by BerlinWind GmbH (1) suggest that up to 50 percent of wind turbines suffer from undue unbalance on the rotor” remarks David Futter, product manager at Bachmann Monitoring GmbH. “We estimate that today the majority of turbines running with moderate unbalance remain undetected. Only an extended full survey would be able to assess them” David Futter explains. That is lengthy and expensive, but the implications of an undetected unbalance are also severe: increased fatigue loads on the entire structure, including the tower and nacelle, as well as the drivetrain components. Providing a cost-effective estimate of the balance quality allows owners to target those wind turbines where balancing will make a significant improvement to the operational life.
(1) Dr. Christoph Heilmann, Anke Grunwald, Michael Melsheimer, BerlinWind GmbH: "Auswuchten von WEA-Rotoren: Wirtschaftliche Vorteile und technische Umsetzung" in Windindustrie in Deutschland (WID) Whitepaper 03/2015
Picture:
https://www.iwrpressedienst.de/bilddatenbank/bachmann-monitoring-gmbh/87762_Bachmann_Unwuchten_1799b.jpgCaption: The unbalance plug-in to the CMS runs based the output from a tower sensor fitted at the centre of the nacelle. Source: Bachmann Electronic
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Attention editorial offices: For further questions please contact Catherine Diethelm, Bachmann electronic GmbH.
Media contact
Catherine Diethelm
Corporate Communication
Bachmann electronic GmbH
Kreuzäckerweg 33
6800 Feldkirch, Austria
Telephone: +43(0)5522/3497-1161
E-Mail: catherine.diethelm@bachmann.info
Bachmann Monitoring GmbH
Fritz-Bolland-Str. 7
07407 Rudolstadt
Internet: https://www.bachmann.info
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Daten werden geladen...Daten werden geladen...About Bachmann Monitoring GmbH
Bachmann Monitoring GmbH develops, produces and markets innovative measurement systems and systematic solutions for the permanent condition based maintenance of wind turbines. This comprehensive service concept using manufacturer integrated or stand-alone condition monitoring systems substantially increases the reliability and profitability of the wind turbine.
The main area of business for Bachmann Monitoring GmbH is the measurement and online analysis of vibrations enabling the reliable monitoring of the majority of the drive-train components of onshore and offshore wind turbines. The remote condition monitoring via Weblog forms the basis of the efficient monitoring of decentralised plant equipment. The early recognition and localisation of possible weak points gives our customers the optimum availability of their plant equipment and increased long term profitability. The structure-borne sound based condition monitoring is complemented by diagnostic functions for imbalances, rotor blades and structural component monitoring. The range of services offered also includes the compiling of vibration reports.
Wind turbines with Bachmann control systems have the option of adding a comprehensive integrated “Omega Guard” condition monitoring system, which is also certified by “Germanischer Lloyd”. This solution offers significant cost and technological advantages when compared to the conventional stand-alone CM systems.