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Optimal Ratio of PV and Wind Power at a Single Grid Connection Point

: Grab, R.; Rogalla, S.; Wigger, S.

Schulz, D. ; Helmut-Schmidt-Universität, Professur für Elektrische Energiesysteme, Hamburg:
NEIS 2019, Conference on Sustainable Energy Supply and Energy Storage Systems : Hamburg, 19-20 September 2019
Berlin: VDE-Verlag, 2019
ISBN: 978-3-8007-5152-5
ISBN: 3-8007-5152-6
ISBN: 978-3-8007-5153-2
Conference on Sustainable Energy Supply and Energy Storage Systems (NEIS) <7, 2019, Hamburg>
Conference Paper
Fraunhofer ISE ()
Leistungselektronik; Netze und Intelligente Systeme; Wechselrichter in Netzen; power; integration of common Coupling; curtailment

In order to economically optimize the grid connection of a combined photovoltaic (PV) and wind power plant, the simultaneity of production from both renewable energy sources should be taken into account. In this work, high-resolution feed-in data from such a combined power plant was recorded and evaluated. The results allow for an estimation of maximum energy curtailment in case of an undersized point of common coupling (PCC). Additionally, it is evaluated how the ratio between the PV and the wind part of a combined power plant influences the expected curtailment losses for different PCC sizes. With this knowledge, it is possible to find a cost-optimal solution for the layout and the grid connection of a combined PV / wind power plant.