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Home » GRID INTEGRATION » Grid connection requirements » Grid codes and essential requirements for wind power plants » Power quality

Power quality

This term covers several separate issues.

There are usually limits on the harmonic currents that the wind farm can introduce into the network; and in this area, detailed analysis can be difficult. Ideally the existing background harmonics on the network should be established, but these are often unknown.

On weak networks, voltage steps, caused by wind turbines starting or stopping, or the energisation of transformers, can be a problem. A related problem is voltage flicker, which can be caused by wind turbines starting or stopping, or when they are in continuous operation.

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