Curative measures identification in congestion management exploiting temporary admissible thermal loading of overhead lines

This paper demonstrates how to consider thermal reserves of overhead lines in optimization problems for congestion management with preventive (pre‐fault) and curative (post‐fault) actions effectively to ensure N‐1 security. Solving congestions curatively allows for higher base loadings and reduced c...

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Bibliographic Details
Published inIET generation, transmission & distribution Vol. 16; no. 16; pp. 3171 - 3183
Main Authors Kollenda, Katharina, Schrief, Alexander, Biele, Charlotte, Lindner, Martin, Sundorf, Niklas, Hoffrichter, André, Roehder, Andreas, Moser, Albert, Rehtanz, Christian
Format Journal Article
LanguageEnglish
Published Wiley 01.08.2022
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Summary:This paper demonstrates how to consider thermal reserves of overhead lines in optimization problems for congestion management with preventive (pre‐fault) and curative (post‐fault) actions effectively to ensure N‐1 security. Solving congestions curatively allows for higher base loadings and reduced congestion management volumes. At the same time, assets are exposed to higher risks of damage. The two proposed methods incorporate precise permanent and temporary admissible loading constraints for base and contingency situations already at the operational planning stage. The methods ensure that conductor temperatures stay below the assets’ thermal limits at all times. The benefits of exploiting thermal reserves are analyzed in a case study to the future German transmission grid of 2030.
Bibliography:The data that support the findings of this study are available from the corresponding author upon reasonable request.
ISSN:1751-8687
1751-8695
DOI:10.1049/gtd2.12512