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2013
Conference Paper
Titel
Wind turbine participation on control reserve markets
Abstract
Under current frame work conditions wind turbines are not able to participate in control reserve markets, although they are contributing an increasing share of the electricity in the power system. The introduction of an "optional market premium" in the revision of the German Renewable Energies Act (EEG) by January 2012 has set the legislative framework for the integration of wind farms into the existing market structures. This led to the successful integration in power exchange markets, whereas wind farms have not yet participated in control reserve markets in Germany, due to the lack of proper regulations. Currently the proof is done by comparing the planned power production and the real power production. The difference has to match the control reserve power. Applying this method to wind farms will enforce them to stick to a schedule. Instead of this a method is shown and demonstrated which is suitable for wind farms and for all three kinds of control reserve (primary, secondary and tertiary control). By comparing the available active power with the real power production the delivery of energy from control reserve can be proven. The available active power is the power that would have been produced if the wind farms had not been down-regulated. The creation of bids for the control reserve markets will utilize probabilistic forecasts. Wind farms are capable of providing control reserve on very high security levels. They can compete economically with conventional generation. The cost saving potentials can reach up to 24 % in the tertiary control reserve market with the most suitable conditions.