DC Collection Network Simulation for Offshore Wind Farms

Stephan Vogel, Tonny Wederberg Rasmussen, Walid Ziad El-Khatib, Joachim Holbøll

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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The possibility to connect offshore wind turbines with a collection network based on Direct Current (DC), instead of Alternating Current (AC), gained attention in the scientific and industrial environment. There are many promising properties of DC components that could be beneficial such as: smaller dimensions, less weight, fewer conductors, no reactive power considerations, and less overall losses due to the absence of proximity and skin effects. This work describes a study about the simulation of a Medium Voltage DC (MVDC) grid in an offshore wind farm. Suitable converter concepts are identified and the power flow in steady-state and during fault conditions is investigated. The efficiency of the network is determined in full-load conditions. Furthermore, key design aspects of such a grid are illustrated and issues regarding ripple current and converter design are treated. The overall efficiency of the MVDC grid is determined to 94%.
Original languageEnglish
Title of host publicationProceedings of EWEA Offshore 2015 Conference
Number of pages10
PublisherEuropean Wind Energy Association (EWEA)
Publication date2015
Publication statusPublished - 2015
EventEWEA Offshore 2015 Conference - Bella Center, Copenhagen, Denmark
Duration: 10 Mar 201512 Mar 2015


ConferenceEWEA Offshore 2015 Conference
LocationBella Center

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