Potentials of a cost-optimized application of regulated distribution transformers in urban low-voltage grid planning with a high share of charging infrastructure, heat pumps and photovoltaic systems

Conference: PESS 2021 - Power and Energy Student Summit
11/25/2021 - 11/26/2021 at online, University of Kassel

Proceedings: PESS 2021 – Power and Energy Student Summit

Pages: 6Language: englishTyp: PDF

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Goebelsmann, Fabian; Wintzek, Patrick; Ali, Shawki; Zdrallek, Markus (Institute of Power Systems Engineering, University of Wuppertal, Wuppertal, Germany)
Monscheidt, Julian; Gemsjaeger, Ben; Slupinski, Adam (Power Technologies International, Siemens AG, Erlangen, Germany)

This contribution deals with the new supply tasks that low-voltage grids are confronted with in the context of the energy transition due to the addition of distributed generation on the one hand and new load types on the other hand. The resulting operating points of peak generation and peak load strain the grids, so that reinforcement planning measures become necessary. The contribution indicates that it is economically beneficial to determine the predominant operating point in order to apply planning measures precisely to fulfill the technical requirements. First, selected market ramp-up scenarios of distributed generation and new loads as well as their regionalization in the grids are presented. Afterwards this contribution focuses on the modelling of the operating points which are underlined by technical limiting values. Subsequently, the applied conventional and innovative planning measures are highlighted followed by the possible savings potentials as a result of needs-based grid planning.