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Grid code requirements concerning connection and operation of wind turbines in Germany

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2 Author(s)
I. Erlich ; Dept. of Power Syst., Duisburg Univ., Germany ; U. Bachmann

This paper discusses issues of German grid codes relating to wind turbines. With the high utilization of wind power a simultaneous loss of several thousand MW wind generation became a realistic scenario in the German power system. Therefore, the main requirements concern the fault ride through capability of wind turbines. Accordingly, disconnection of wind turbines and wind farms above 15 % nominal voltage at the grid connection nodes is not allowed. Besides, following network faults wind turbines have to supply a definite reactive current depending on the instantaneous voltage. Furthermore, they must return quickly to normal operation. The frequency range wind turbines have to tolerate is about 47.5-51.5 Hz. According to the wishes of German transmission grid operators, large wind farms have to be treated in the future like conventional power plants.

Published in:

IEEE Power Engineering Society General Meeting, 2005

Date of Conference:

12-16 June 2005