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Contribution to frequency control through wind turbine inertial energy storage

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6 Author(s)
Teninge, A. ; GIE IDEA, St. Martin dHeres, France ; Jecu, C. ; Roye, D. ; Bacha, S.
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An innovative way for wind energy to participate in some sort of frequency control using kinetic energy stored in the rotor for a fast power reserve that could be delivered in a short period (from several seconds up to a few tens of seconds) is presented. This kinetic-energy-based fast reserve is ensured despite wind speed variations - a disoptimisation of the power coefficient through the modification of the rotor speed set point or through the pitch control. In case of a frequency drop, the power coefficient could then be increased to produce more energy. This approach could help to reduce the dynamics and the depth of the frequency drops and therefore allow wind farms to participate in frequency control. Basic economic aspects of the provision of fast power reserve by wind turbines as a function of the amount of reserve considered are also discussed.

Published in:

Renewable Power Generation, IET  (Volume:3 ,  Issue: 3 )