% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Schfer:916353, author = {Schäfer, Benjamin and Pesch, Thiemo and Manik, Debsankha and Gollenstede, Julian and Lin, Guosong and Beck, Hans-Peter and Witthaut, Dirk and Timme, Marc}, title = {{U}nderstanding {B}raess’ {P}aradox in power grids}, journal = {Nature Communications}, volume = {13}, number = {1}, issn = {2041-1723}, address = {[London]}, publisher = {Nature Publishing Group UK}, reportid = {FZJ-2022-06154}, pages = {5396}, year = {2022}, abstract = {The ongoing energy transition requires power grid extensions to connect renewable generators to consumers and to transfer power among distant areas. The process of grid extension requires a large investment of resources and is supposed to make grid operation more robust. Yet, counter-intuitively, increasing the capacity of existing lines or adding new lines may also reduce the overall system performance and even promote blackouts due to Braess’ paradox. Braess’ paradox was theoretically modeled but not yet proven in realistically scaled power grids. Here, we present an experimental setup demonstrating Braess’ paradox in an AC power grid and show how it constrains ongoing large-scale grid extension projects. We present a topological theory that reveals the key mechanism and predicts Braessian grid extensions from the network structure. These results offer a theoretical method to understand and practical guidelines in support of preventing unsuitable infrastructures and the systemic planning of grid extensions.}, cin = {IEK-STE / IEK-10}, ddc = {500}, cid = {I:(DE-Juel1)IEK-STE-20101013 / I:(DE-Juel1)IEK-10-20170217}, pnm = {1112 - Societally Feasible Transformation Pathways (POF4-111) / VH-NG-1025 - Helmholtz Young Investigators Group "Efficiency, Emergence and Economics of future supply networks" $(VH-NG-1025_20112014)$ / CoNDyNet 2 - Kollektive Nichtlineare Dynamik Komplexer Stromnetze (BMBF-03EK3055B) / ES2050 - Energie System 2050 (ES2050) / 1122 - Design, Operation and Digitalization of the Future Energy Grids (POF4-112)}, pid = {G:(DE-HGF)POF4-1112 / $G:(HGF)VH-NG-1025_20112014$ / G:(DE-JUEL1)BMBF-03EK3055B / G:(DE-HGF)ES2050 / G:(DE-HGF)POF4-1122}, typ = {PUB:(DE-HGF)16}, pubmed = {36104335}, UT = {WOS:000853935100011}, doi = {10.1038/s41467-022-32917-6}, url = {https://juser.fz-juelich.de/record/916353}, }