In times of globalization and fast growing demand for energy, a secure, independent and ecological energy supply is getting more and more important for the economic success of an industrial nation. Energy prices go up, amongst other things due to a shortage of fossil resources. This leads to disadvantages in national competition, not only for the energy-intensive industries of a country. The European Council decided that the European Union has to enter a clear and independent commitment. It has to increase the renewable energy by 20% compared with the base year 1990. This is why the endeavours of the German Federal Government shall lead to installing 25 GW Offshore wind energy power in German territorial waters until the year 2020. This leads to the question how the offshore wind parks, with a built-in power of more than 400MW, can be embedded into the conventional system of generating stations. Even with the help of weather forecasts a volatility of this kind of renewable energy supply cannot be determined clearly. To guarantee a reliable energy supply the energy fluctuations have to be minimized. Biogas plants could be an alternative. If they are equipped with fast adjustable micro-gas turbines, they can simulate the character of a gas-fired power station. The required raw material can be cultivated locally and costefficiently. Not only the German coasts do offer an appropriate location for the biogas plants. In that way they can be connected to the same point of delivery the offshore wind parks are connected to. A model that is based on the current research into an offshore wind farm, the feed-in fluctuations are simulated. It does not only appear because of changes in wind speed. It does also appear because of variable shadowing effects of the turbines, caused by changes of wind direction. There is no need to revert back to time series modeling or interpolation concerning input data. The advantage of this model lies in the use of real measured wind velocities and wind directions on hub height of future wind energy plants. By that, mistakes in time series modeling and insecurities in adjustments of heights do not have to be considered. In addition to the wind farm model, the electric functionality of a biogas plant in combination with a micro-gas turbine will be modeled. The possibilities of adjustment control of biogas plants will be simulated. By connecting the offshore wind farm model to a biogas plant, investigations can be carried out. These investigations will deal with the potential of compensation of biogas plants for the feed-in fluctuations of offshore wind farms.


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    Titel :

    Possibilities of reducing the feed-in fluctuations of offshore wind farms by biogas plants


    Weitere Titelangaben:

    Möglichkeiten zur Verringerung der eingetragenen Schwankungen von Offshore-Windfarmen durch Biogasanlagen


    Beteiligte:
    Tigges, M. (Autor:in) / Bendfeld, J. (Autor:in) / Splett, M. (Autor:in) / Voss, Jürgen (Autor:in)


    Erscheinungsdatum :

    2008


    Format / Umfang :

    4 Seiten, 4 Bilder, 4 Quellen


    Anmerkungen:

    (nicht paginiert)


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Datenträger


    Sprache :

    Englisch




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