The grid code sets requirements to the ability of generators to ride-through certain voltage dips, though this influence wind turbine stability, structural loads and lifetime.
SINTEF Energy Research operates a mobile test laboratory for creating a controlled voltage-dip at the terminals of the generator under test, and by this the grid compliance of the generator can be tested. The mobile test laboratory is a key facility to enable research addressing these critical issues. The lab is available for research and testing of grid compliance of generators. The lab conforms to the test requirements specified in IEC 61400-21 and for generators rated up to 8 MVA and 36 kV.