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LORC tests and demonstrates technology for harvesting renewable energy offshore

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Meeting industry’s needs for environmental testing of large components for offshore use is now one step closer with the ordering of a climatic chamber for a new LORC test centre.

Read more about the environmental testing of structures here




LORC Nacelle Testing

LORC Nacelle Testing is a two test-dock design and a result of close cooperation between industry and academia. 

On one test dock, a mechanical test can be conducted, applying forces and moments on the nacelle main shaft, static as well as dynamic. This dock also offers HALT, Highly Accelerated Lifetime Testing, and therefore enables customers to verify the expected quality level of the nacelle as 20 years operation can be simulated in less than half a year depending on the size of the machine.

The HALT Tester of LORC Nacelle Testing - 6 degrees of freedom loads


The other test dock, the Function Tester, tests the functionalities and performance of the nacelle. The Function Tester performs tests of the full nacelle can include the hub where the blades are normally mounted. 

The absolute benefit of including the hub and hence allowing the pitch system to be operational is that it opens a range of opportunities in terms of software testing since communication signals and voltage supply from the wind turbine controller inside the nacelle to the hub and rotor components can be used unmodified. 

This makes the tests at LORC Nacelle Testing the most realistic in the world and, contrary to other test environments where software often needs to be manipulated in order to operate in the test equipment, LORC Nacelle Testing will allow the original software package as used for field operation to be installed in the test nacelle. This will provide a higher degree of confidence in the test results.

The Function Tester tests with the hub and hence allows the blade pitch system to be operational

Competitive cost  level

Splitting the test-functions into two docks in this way is a cost advantage for the customers. A customer who only wants to test the behavior of a wind turbine in the grid does not have to occupy the test facility for wind load, thus saving the expense – and visa versa.

LORC Nacelle Testing is built with commercially accessible components in order to reduce risks and to limit development costs. Read more about how testing at LORC Nacelle Testing can determine how the turbine behaves in a park context. And find more about the infrastructure of the test center.

Among the partners behind LORC Nacelle Testing are Vestas Wind Systems and Siemens Wind Power, DONG Energy and Vattenfall, the Technical University of Denmark and the University of Southern Denmark. The cooperation with these partners in both the design and the construction phase ensures that the test centre will be able to meet the demands for testing of “tomorrow’s offshore wind turbines”.

LORC Nacelle Testing is partially funded by Green Labs DK.


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