Conversion of Existing AC into DC Cable Links in Distribution Grids: Benefits and Challenges

Research output: Contribution to book/conference proceedings/anthology/reportConference contributionContributedpeer-review


The need for higher transmission capacities even in low (LV) and medium voltage (MV) distribution grids motivates to add direct current (DC) links to homogenous alternating current (AC) grids. The AC2DC project takes up the challenges associated with this transition. The project aims to develop the necessary concepts and guidelines for the system integration of DC links as well as to derive the requirements for the electrical equipment. This paper presents the projects first results, including an overview of the present day research work, the evaluation of a survey regarding cable types in distribution grids, an analytic derivation of the transmission capacities of DC cable systems as well as the accentuation of research gaps in the field of power electronics and test procedures for the electrical equipment.


Original languageEnglish
Title of host publicationETG Congress 2021
PublisherVDE Verlag, Berlin [u. a.]
ISBN (print)978-3-8007-5549-3
Publication statusPublished - May 2021


TitleETG Congress 2021
SubtitleFrom Components to the Overall System for the Energy Turnaround
Duration18 - 19 May 2021
Degree of recognitionNational event

External IDs

ORCID /0000-0001-8439-7786/work/142244092
ORCID /0000-0003-0853-3306/work/142250888


DFG Classification of Subject Areas according to Review Boards

Subject groups, research areas, subject areas according to Destatis


  • Hybride AC/DC Verteilnetze, DC Verteilnetze, Kabelsysteme, NSDC, AC2DC, Hybrid AC/DC distribution grids, DC distribution, Cable systems, LVDC, AC2DC