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Hardware design of a high-current, high step-down ratio Series Capacitor Buck converter prototype for slow-ramped powering of High-Luminosity Large Hadron Collider inner triplet superconducting electromagnets

Name: Hardware design of a high-current, high step-down ratio Series Capacitor Buck converter prototype for slow-ramped powering of High-Luminosity Large Hadron Collider inner triplet superconducting electromagnets
Keywords: series capacitor buck converter, Large Hadron Collider, large hadron collider, High-current low-voltage DC/DC converters, Superconducting magnets, DC-to-DC converters, Imants superconductors, Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència::Convertidors de corrent elèctric, high-current low-voltage DC/DC converters, Convertidors continu-continu

descriptionPublicationkeyboard_double_arrow_right Article 01 Oct 2024 Spain Publisher:Elsevier BVJournal:Applied Energy, volume 371, page 123,730 (issn: 0306-2619,

Authors: Otero-Olavarrieta, Alberto; Matallana, Asier; Martínez de Alegría, Iñigo; Ibarra, Edorta; Arias, Antoni; de Mallac, Louis; Pittet, Serge; +7 Authors

doi: 10.1016/j.apenergy.2024.123730

handle: 2117/411206

Hardware design of a high-current, high step-down ratio Series Capacitor Buck converter prototype for slow-ramped powering of High-Luminosity Large Hadron Collider inner triplet superconducting electromagnets

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Abstract

In this work, the main hardware design aspects of a slow-ramped DC/DC power converter prototype, developed to feed superconducting inner triplet (IT) electromagnets for the High Luminosity (HL) upgrade of the Large Hadron Collider (LHC), is presented. The proposal comprises a two-quadrant multiphase interleaved converter, based on the Series Capacitor Buck architecture, which operates at very high-current and high step-down ratio conditions. A series of innovative solutions were investigated and developed in order to fulfill the challenging aspects such as waveform quality, power loss, volume and size. All these hardware aspects are thoroughly described in the manuscript. Finally, experimental results that demonstrate the validity of the proposal are presented, operating the converter close-to-nominal conditions during power delivery and energy recovery modes. Thus, this work provides valuable information that will help researchers and engineers alike to build these type of specialized converters for future upgrades of high-energy scientific particle accelerators.

This work was supported in part by CERN and APERT (UPV/EHU) within the HL-LHC project named “Collaboration in the Study of Power Converter Topologies for Inner Triplet magnets with Energy Recovery in the framework of the High Luminosity upgrade for the LHC at CERN”, and also in part by the Government of the Basque Country within the fund for research groups of the Basque University system under Grant IT978-16. Open Access funding provided by University of the Basque Country.

Peer Reviewed

Country

Spain

Related Organizations

European Organization for Nuclear Research
Switzerland
University of La Rioja
Spain
Universitat Polite`cnica de Catalunya
Spain
University of the Basque Country
Spain
UNIVERSIDAD DEL PAIS VASCO/ EUSKAL HERRIKO UNIBERTSITATEA
Spain

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Keywords

series capacitor buck converter, Large Hadron Collider, large hadron collider, High-current low-voltage DC/DC converters, Superconducting magnets, DC-to-DC converters, Imants superconductors, Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència::Convertidors de corrent elèctric, high-current low-voltage DC/DC converters, Convertidors continu-continu, Series Capacitor Buck converter

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