Efficient integration of Buck converter into an Active Rectifier for DC-Fault Current limitation in DC networks

Efficient integration of Buck converter into an Active Rectifier for DC-Fault Current limitation in DC networks | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 7 January 2025 V1 Latest version Share on Efficient integration of Buck converter into an Active Rectifier for DC-Fault Current limitation in DC networks Authors : Evangelos Pompodakis 0000-0001-6702-2149 [email protected] , Evangelos E Pompodakis , and Georgios I Orfanoudakis Authors Info & Affiliations https://doi.org/10.22541/au.173627399.93910669/v1 Published e-Prime - Advances in Electrical Engineering, Electronics and Energy Version of record Peer review timeline 231 views 139 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Voltage Source Converters (VSCs) operating as active rectifiers inherently lack currentlimiting capabilities for faults occurring on the DC side due to the presence of freewheeling diodes in IGBT or MOSFET structures. This limitation leads to uncontrolled fault currents, flowing from the AC to the DC network, that can jeopardize the safety of power electronic components. Additionally, the challenge is compounded in DC networks, where DC circuit breakers must interrupt high fault currents, fed by the AC side, without the benefit of current zero crossings. To address these issues, this paper presents a novel topology that integrates a classical buck DC/DC converter into a VSC to regulate the currents of faults occurring in DC network, thereby improving the protection of the converter and aiding DC circuit breakers in interrupting the fault. The advantage of the proposed topology lies in that under normal operating conditions, the buck converter is totally bypassed, thus improving the efficiency of the topology. When a fault is detected within the DC microgrid, the buck converter is connected in series with the VSC to control the current flowing from the AC to DC network. Simulation results using MATLAB/Simulink validate the effectiveness of the proposed topology in completely controlling the current at the DC side of converter, thus demonstrating significant improvements in fault management, system reliability, and converter protection. Supplementary Material File (preprint.pdf) Download 2.04 MB Information & Authors Information Version history V1 Version 1 07 January 2025 Peer review timeline Published e-Prime - Advances in Electrical Engineering, Electronics and Energy Version of Record 1 Sep 2025 Published Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords buck converter dc circuit breaker dc network fault current limitation power, energy and industry applications short-circuit voltage source converter Authors Affiliations Evangelos Pompodakis 0000-0001-6702-2149 [email protected] View all articles by this author Evangelos E Pompodakis Institute of Energy, Environment and Climatic Change, Post-doctoral researcher, Hellenic Mediterranean University View all articles by this author Georgios I Orfanoudakis School of Engineering, Power Systems and Energy Engineering, Hellenic Mediterra-nean University View all articles by this author Metrics & Citations Metrics Article Usage 231 views 139 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Evangelos Pompodakis, Evangelos E Pompodakis, Georgios I Orfanoudakis. Efficient integration of Buck converter into an Active Rectifier for DC-Fault Current limitation in DC networks. Authorea . 07 January 2025. DOI: https://doi.org/10.22541/au.173627399.93910669/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . Format Please select one from the list RIS (ProCite, Reference Manager) EndNote BibTex Medlars RefWorks Direct import Tips for downloading citations document.getElementById('citMgrHelpLink').addEventListener('click', function() { popupHelp(this.href); return false; }); $(".js__slcInclude").on("change", function(e){ if ($(this).val() == 'refworks') $('#direct').prop("checked", false); $('#direct').prop("disabled", ($(this).val() == 'refworks')); }); View Options View options PDF View PDF Figures Tables Media Share Share Share article link Copy Link Copied! Copying failed. 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