Wind turbine testing
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Wind turbine testing
OWI-Lab informs you about wind turbine testing and climate chamber testing. http://www.owi-lab.be/content/climate-chamber-testing
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OWI-Lab invests in -40°C cold start-up test bench for wind turbine drivetrain components | Owi-lab

OWI-Lab invests in -40°C cold start-up test bench for wind turbine drivetrain components | Owi-lab | Wind turbine testing | Scoop.it
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Extended climatic durability testing on power electronics for the renewable industry | Owi-lab

Extended climatic durability testing on power electronics for the renewable industry | Owi-lab | Wind turbine testing | Scoop.it
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Testing a 15MVA transformer at extremely cold conditions in the large climatic test chamber | Owi-lab

Testing a 15MVA transformer at extremely cold conditions in the large climatic test chamber | Owi-lab | Wind turbine testing | Scoop.it
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OWI-Lab Tests ZF Wind Power’s 80t Gearboxes | Offshore Wind

OWI-Lab Tests ZF Wind Power’s 80t Gearboxes | Offshore Wind | Wind turbine testing | Scoop.it

Wind power is the energy of the future, but wind turbines must be reliable even under extreme weather conditions. To that end, Sirris’s OWI-Lab tested ZF Wind Power’s 80-ton gearboxes in its large climatic test chamber based in the port of Antwerp.

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Design verification of offshore wind turbines for foundation optimiza…

OWI-Lab develops short- and long-term monitoring solutions for offshore wind turbines. The motivation is gaining the insights that are crucial to minimize cons…
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Collaborative vibration measurement campaign on Offshore High Voltage Station (OHVS) | Owi-lab

Collaborative vibration measurement campaign on Offshore High Voltage Station (OHVS) | Owi-lab | Wind turbine testing | Scoop.it
OWI-Lab's insight:

Offshore substations are subjected to a wide range of both environmental and operational loads. To ensure their cost effective design many OHVS structures are getting realized with monopile foundations. These slender structures are subjected to wind and wave loads that can significantly affect the lifetime of both the primary and secondary steel structures. These loads can also result in a dynamic amplification of the responses of the many components present on the OHVS such as the transformer, the reactors, the GIS and the coolers.

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Why perform climatic chamber testing for wind energy applications? - part 2 | Owi-lab

Why perform climatic chamber testing for wind energy applications? - part 2 | Owi-lab | Wind turbine testing | Scoop.it
OWI-Lab's insight:

Part 2 - White paper cold climate & climate chamber testing = online !

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Extreme temperature test bench starts operating | Windpower Monthly

Extreme temperature test bench starts operating | Windpower Monthly | Wind turbine testing | Scoop.it
Read Extreme temperature test bench starts operating and other wind energy news & analysis on Windpower Monthly
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Operating at extremes: tech note on turbine operation in cold climates

Operating at extremes: tech note on turbine operation in cold climates | Wind turbine testing | Scoop.it
It’s no surprise that wind turbines are operating in areas where temperatures tests the machinery to its limits.
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Mobile bird-radar system tested at OWI-Lab’s large climatic test chamber | Owi-lab

Mobile bird-radar system tested at OWI-Lab’s large climatic test chamber | Owi-lab | Wind turbine testing | Scoop.it

Robin Radar Systems BV, a leading supplier of bird detection systems for bird impact prevention, ecological research and environmental impact assessments, tested a trailer based bird-radar system in OWI-Lab’s large climatic test chamber last month. More and more, bird radars are used for bird migration research and risk assessment for bird impacts as these systems prove their value. Such studies are part of environmental impact assessments (EIA’s).

Project developers for on and offshore wind farms are obliged to perform such EIA’s before construction on a wind farm can kick off. However, deploying these systems in remote environments where climatic conditions are harsh (offshore, cold and hot climate, tropic locations,…) create many challenges for the radar systems used in the EIA’s. They need to be robust, reliable and suitable for different environmental conditions. For this reason Robin Radar Systems bird radar solution was put in the climatic torture chamber.

 

OWI-Lab’s large climatic test chamber with its 10m x7mx8m dimensions was used because of the large height of the radar system and the wide range of possible test temperatures. The behavior and performance of the system in the field of hot (+55°C) and cold temperatures (-20°C) was validated. Also a humidity test in hot temperature conditions (+35°C/95%RH) has been performed and the system fully past the tests.  

 

 

More information OWi-Lab’s large climate chamber: http://www.owi-lab.be/content/climate-chamber-testing

 

More information Robin Radar BV: http://www.robinradar.com/

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Fraunhofer IWES builds 10-MW nacelle test

Fraunhofer IWES builds 10-MW nacelle test | Wind turbine testing | Scoop.it

On 20 September, Fraunhofer IWES laid the foundation of a new 10-MW nacelle test stand. Fraunhofer IWES is building the test facility for complete wind turbine nacelles, which is unique worldwide, in Bremerhaven.

The test stand will have a power capacity of 10 MW, which corresponds to a dynamic power five times the thrust of a tug boat, to simulate the rotor wind load as well as an artificial medium voltage grid. This will allow full electrical system certification at DyNaLab, which is short for 'Dynamic Nacelle Testing Laboratory'.

Today, powerful and reliable systems consisting of larger and larger components must be built in increasingly shorter development times. Completely new concepts always carry a significant development risk - unless they can be thoroughly pre-tested. When the one-year construction phase is completed, DyNaLab will be able to provide exactly this type of testing for onshore and offshore nacelles weighing up to 400 tonnes.

With investments totalling € 30 million, the new test facility is receiving financial assistance from the Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU), the Federal Ministry of Education and Research (BMBF), the European Union through funding under the ERDF Programme as well as from the State of Bremen and the Fraunhofer Society. Fraunhofer IWES closed ranks with the industry to develop an appropriate test facility as early as the design phase.

With the ability to perform extensive system tests in the laboratory, Fraunhofer IWES plays a central role in German wind energy research: Two test stands for rotor blades have already been operating successfully for several years and another for support structures will be commissioned in 2014. "Based on a test infrastructure that can realistically model almost all aspects of the complexity of wind energy systems, new approaches for future-oriented research projects can be implemented that will benefit the entire wind industry," emphasised Professor Andreas Reuter, the Director of the institute.

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Samsung’s 7MW Offshore Wind Turbine Reaches NAREC’s Test Facility

Samsung’s 7MW Offshore Wind Turbine Reaches NAREC’s Test Facility | Wind turbine testing | Scoop.it

Samsung’s prototype 7MW offshore wind turbine was this week delivered to the National Renewable Energy Centre’s (Narec) new test facilities in Blyth, Northumberland, signalling the next step in the evolution of the mega-sized technology that will be used in the Round 3 offshore wind zones.

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TU Delft performs R&D icing and low temperatures tests on new de-icing technique at OWI-Lab’s climate chamber | Owi-lab

TU Delft performs R&D icing and low temperatures tests on new de-icing technique at OWI-Lab’s climate chamber | Owi-lab | Wind turbine testing | Scoop.it
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Multi-MW electrical systems for wind turbines tested at OWI-Lab’s environmental test facility | Owi-lab

Multi-MW electrical systems for wind turbines tested at OWI-Lab’s environmental test facility | Owi-lab | Wind turbine testing | Scoop.it
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XANT mid-sized wind turbine tested for cold climate conditions at OWI-Lab | Owi-lab

XANT mid-sized wind turbine tested for cold climate conditions at OWI-Lab | Owi-lab | Wind turbine testing | Scoop.it
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On-site system validation of blade de-icing system through thermal imaging test campaign | Owi-lab

On-site system validation of blade de-icing system through thermal imaging test campaign | Owi-lab | Wind turbine testing | Scoop.it
Validation of blade de-icing system by OWI-Lab on site In order to check the functionality of the blade de-icing system, an additional on-site validation test campaign has been performed at the end of last year, supported by OWI-Lab in order to ensure its performance after installation. OWI-Lab provided field measurements for this validation campaign by performing thermal imaging on site during the commission phase. Two separate infrared measurement systems were used to ensure the accuracy of the measurements. A fixed camera in a weatherproof housing provided an overview which could be checked by the project developer and OEM while a dedicated handheld camera was used to provide more detailed images.
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IN DEPTH: Offshore wind warms to the cold Baltic Sea

IN DEPTH: Offshore wind warms to the cold Baltic Sea | Wind turbine testing | Scoop.it
IN DEPTH: Offshore wind warms to the cold Baltic Sea
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Cold start of a 5.5MVA offshore transformer

CG Power Systems Belgium, a leading supplier of on- and offshore wind turbine transformers and power solutions, is using OWI-Lab's large climate chamber on a f…
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Winterwind 2015 Conference - Inspection & repair session: "Why perfor…

As most renewable energy systems are located outdoor, some in harsh locations from the extreme cold of Inner Mongolia, Scandinavia, Canada or North Dakota to t…
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Why perform climatic chamber testing for wind energy applications? - part 1 | Owi-lab

Why perform climatic chamber testing for wind energy applications? - part 1 | Owi-lab | Wind turbine testing | Scoop.it
OWI-Lab's insight:

Part 1 of our white-paper with regard to cold climate and climate chamber testing = online

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The importance of transformer testing in temperature-controlled containers - Powertransformernews.com

The importance of transformer testing in temperature-controlled containers - Powertransformernews.com | Wind turbine testing | Scoop.it

Testing is an important part in the creation of a new transformer, especially when the transformer will have to deal with tough or sensitive conditions.

In situations where the outside temperature can reach extreme highs or lows, climatic testing can be used, in which a transformer is tested inside a temperature-controlled container. The data from such testing assists manufacturers in building a hardy transformer, in order to improve reliability and reduce potential maintenance costs.

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ITM-artikel OWI-Lab: TESTSTAND IN KLIMAATKAMER VOOR GROTE ONDERDELEN

ITM-artikel OWI-Lab: TESTSTAND IN KLIMAATKAMER VOOR GROTE ONDERDELEN | Wind turbine testing | Scoop.it

Op 27 september 2012 opende in Antwerpen het Offshore Wind Infrastructure Application Lab, een nieuw servicecenter van Sirris. Het OWI is het vierde ‘Application Lab’ van het kenniscentrum. Begin dit jaar konden de eerste testen starten. In september werd een teststand voor multi-megawatt tandwielkasten in gebruik genomen.

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Generators 911

Generators 911 | Wind turbine testing | Scoop.it
Here’s what happens, or should, when a generator must visit a service center. Kevin Alewine/Renewable Energy Services. Shermco Industries, Irving, Texas./shermco.com Eventually, everything fails.
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Betrouwbaarheid en falen van windturbines (1)

Betrouwbaarheid en falen van windturbines (1) | Wind turbine testing | Scoop.it

Horizonvervuiling, geluidsoverlast, afbrekende rotorbladen en gesneuvelde tandwielkasten en vermogenselektronica hebben het imago van windturbines geen goed gedaan. Maar de windmolenindustrie heeft goed gekeken naar die fouten en lost de een na de ander op. VDI-Wissensforum organiseerde in Hamburg het symposium ‘Reliability and failure analyses of wind turbines’ waarin het technisch falen werd besproken. We kijken hier naar de tandwielkasten.

Windturbines zijn fraaie staaltjes techniek die veel kennis hebben opgeleverd waarvan ook andere takken van industrie profiteren. Zonder windturbines had bijvoorbeeld conditiebewaking de laatste jaren niet zo’n sterke groei doorgemaakt. Ook de opgebouwde kennis over grote tandwieloverbrengingen, grote lagers, zwaar belaste composieten en grote vermogenselektronicasystemen komt andere takken van industrie ten goede.

Een belangrijk hulpmiddel voor het evalueren van falen in windturbines is de richtlijn VDI 3822. Deze geeft richtlijnen voor uiteenlopende materialen en geeft een methode voor faalanalyse en omvat een aantal lagen.

Transmissiesystemen
In de beginjaren van de moderne windmolen waren er veel problemen met tandwielkasten in windturbines. Tot de probleemgebieden behoorden lagers, uitlijning, belastingverdeling, smering, pitting en micropitting.

De schades in het verleden hebben geleid tot een slecht imago van tandwielkasten. Ten onrechte overigens: de meeste storingen worden veroorzaakt door elektrische systemen en elektronica.

Schades uit de beginjaren leidden ook tot een trend richting direct drive windturbines. Elektromotoren zijn echter niet dol op grote draaimomenten en lage toerentallen; dat zijn echter wel precies de omstandigheden waarin windturbines werken!

Een belangrijk nadeel van een direct drive windturbine is ook dat een veel grotere en zwaardere generator nodig is. Als tegenstroming werken fabrikanten van tandwielkasten aan concepten om windturbines mét tandwielkast te laten concurreren met direct drive windturbines.

Lagerschade
Het hoogste percentage schades aan tandwielen in het algemeen is te wijten aan lagerschade. Specifiek voor windturbines bestaan nog geen uitgebreide statistieken, maar hier lijkt hetzelfde van toepassing te zijn.

Algemeen wordt erkend dat de belastingcondities en de smering de belangrijkste beïnvloedende factoren zijn.
Rollagers zorgen in windturbines voor de meeste problemen, met name door onvoldoende smering. Er is te weinig aandacht voor dosering en (vooral!) filtratie, terwijl het belang hiervan toch als bekend moet worden verondersteld.

Bij tandwielen blijkt ook pitting voor de nodige problemen te zorgen. De grootste discussies in deze toepassing gaan momenteel echter vooral over micropitting. Dit fenomeen hoeft niet altijd tot problemen te leiden, mits de tandwielkast goed is ontworpen. De gebruiker moet het verloop echter goed volgen, vooral in het begin.

Hoewel het aantal storingen door uitvallen van tandwielkasten procentueel meevalt, kost het verhelpen ervan veel tijd dus geld. Vandaar dat tandwielkastfabrikanten uitgebreide ontwikkelings-, ontwerp- en kwaliteitsprogramma hebben opgezet om het aantal stops als gevolg van problemen met tandwielkasten verder terug te brengen.

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