Projects

International

EUROfusion – Uskutočňovanie aktivít popísaných v Ceste k fúzii počas Horizon2020 cestou spoločného programu členov konzorcia EUROfusion
Implementation of activities described in the Roadmap to Fusion during Horizon2020 through a Joint programme of the members of the EUROfusion consortium
Program: Horizon 2020
Project leader: Ing. Vojenčiak Michal PhD.
Project webpage: http://cordis.europa.eu/project/rcn/193159_en.html
Duration: 1.1.2014 – 31.12.2020
FASTGRID – Nákladovo efektívne obmedzovače skratových prúdov využívajúce pokročilé supravodivé pásky pre budúce vysokonapäťové jednosmerne rozvodné siete
Cost effective FCL using advanced superconducting tapes for future HVDC grids
Program: Horizon 2020
Project leader: doc. Ing. Gömöry Fedor DrSc.
Annotation: Sustainability of energy systems goes through high penetration of renewable energy with huge volumes of electricity to transmit over long distances. The most advanced solution is the HVDC Supergrid. But fault currents remain an issue even if DC circuit breakers have emerged. These are not satisfying, whereas Superconducting Fault Current Limiters (SCFCLs) using REBCO tapes bring an attractive solution. SCFCLs have already proved their outstanding performances in MVAC systems, with a few commercial devices in service. However, present REBCO conductors cannot be readily used at very high voltages: the electrical field under current limitation is too low and leads to too long tapes and high cost. FASTGRID aims to improve and modify the REBCO conductor, in particular its shunt, in order to significantly enhance (2 to 3 times) the electric field and so the economical SCFCL attractiveness. A commercial tape will be upgraded to reach a higher critical current and enhanced homogeneity as compared to today’s standards. For safer and better operation, the tape’s normal zone propagation velocity will be increased by at least a factor of 10 using the patented current flow diverter concept. The shunt surface will also be functionalized to boost the thermal exchanges with coolant. This advanced conductor will be used in a smart DC SCFCL module (1 kA, 50 kV). This one will include new functionalities and will be designed as sub-element of a real VDC device. In parallel to this main line of work, developments will be carried out on a promising breakthrough path: ultra high electric field tapes based on sapphire substrates. FASTGRID will bring this to the next levels of technology readiness. In conclusion, FASTGRID project aims at improving significantly existing REBCO conductor architecture to make SCFCLs economically attractive for HVDC Supergrids. However, availability of such an advanced conductor will have an impact on virtually all other applications of HTS tapes.
Project webpage: http://cordis.europa.eu/project/rcn/206750_en.html
Duration: 1.1.2017 – 30.6.2020
ECCOFLOW – Vývoj a prevádzkové skúšky účinného obmedzovača skratových prúdov na báze pásky s YBCO pokrytím vhodného pre použitie v elektrických sieťach
Development and field testing of an efficient YBCO coated conductor based fault current limiter for operation in electricity networks
Program: FP7
Project leader: doc. Ing. Gömöry Fedor DrSc.
Project webpage: http://www.eccoflow.org/
Duration: 1.1.2010 – 31.12.2013
Vývoj a kvalifikácia VTS vodičov pre fúzne magnety
Development qualification of HTSC conductors for fusion magnets
Program: FP7
Project leader: doc. Ing. Gömöry Fedor DrSc.
Duration: 1.1.2007 – 31.12.2012
NESPA – Nanotechnologicky upravené supravodiče pre aplikácie v silnoprúdovej elektrotechnike
Nano-Engineering Superconductors for Applications – European Network
Program: FP6
Project leader: doc. Ing. Gömöry Fedor DrSc.
Annotation: The project will focus on the most promising superconducting materials, preparation techniques, applications and cryogenic developments for the envisaged power application systems. Therefore, the materials research topics will be restricted to RE123 coated conductors, RE123 bulk material and MgB2 wires and tapes. There, improving the critical current density as the central figure of merit of superconducting materials for power applications requires the controlled incorporation of a high density of nano-scale defects into an undisturbed crystalline matrix. The electrical engineering issues under consideration will concentrate on reducing ac-losses in superconducting wires and tapes by innovative conductor designs with micrometer scaled structures in the superconductor, which can only be realized by means of material processing in the nanometer scale. The industrial aspects are focused on scale-up the material preparation and the realization of superconducting cables, motors, magnets and the cryogenics involved.
Project webpage: http://www.ifw-dresden.de/nespa
Duration: 1.10.2006 – 30.9.2010
SUPER3C – Kábel z páskového vodiča so supravodivým pokrytím
Superconducting coated conductor cable
Program: FP6
Project leader: doc. Ing. Gömöry Fedor DrSc.
Annotation: The Super3C project therefore aims at establishing the feasibility of a low-loss HTS energy cable using CC tapes. It comprises the development, manufacturing and testing of a functional model consisting of a one-phase, 30-meter long, 10kV, 1 kA cable with its terminations. It is expected to be the first HTS cable in the world using only CC tapes as currnet carrying elements.
Duration: 1.6.2004 – 31.5.2008

National

Magnetická interakcia supravodivých a feromagnetických vrstiev: modelovanie, charakterizácia a aplikácie
Magnetic interaction of superconducting and ferromagnetic layers: modelling, characterization and applications
Program: VEGA
Project leader: Mgr. Seiler Eugen PhD
Annotation: The project aims to investigate the mutual magnetic interaction between superconducting and ferromagneticlayers. Theoretical investigation will rely on numerical models based on the Finite Element Method and theMinimum Electro-Magnetic Entropy Production method. The project will greatly improve the capabilities of thenumerical methods, enabling accurate modelling of real geometries.Experimental investigation is based on characterization of the individual superconducting and ferromagneticlayers and on characterization of simple compound structures, with emphasis on conditions of AC field.Commercially available superconducting tapes will mainly be used as the superconducting elements andcomposites containing ferrite powder will mainly be used as ferromagnetic elements.Using the developed numerical models, the project will analyze and optimize motors with superconductingwindings, as well as design and construct improved magnetic cloaks for shielding AC field.
Duration: 1.1.2018 – 31.12.2020
Tepelno-elektrická stabilita supravodičov pri nekonvenčných spôsoboch chladenia
Thermo-electrical stability of superconductors in unconventional cooling conditions
Program: SASPRO
Project leader: Ing. Vojenčiak Michal PhD.
Annotation: Superconductors are materials with strongly non-linear current-voltage characteristic. When the transported electrical current is below the critical value they exhibit zero resistance, while at higher currents their resistance is high. Latter regime is associated with energy dissipation and temperature increase; it can lead to the temperature excursion causing a damage of superconducting material. Stability of the superconducting wire describes how big is the margin against transition to nonsuperconducting state and whether it will be followed by a material degradation. In this project we investigate the stability in conditions representing the situation typical for two configurations: the fault current limiter and the cable for a coil winding.
Duration: 1.4.2015 – 31.3.2018
Supravodivé cievky z káblovaných REBCO vodičov
Superconducting coils made of cabled REBCO conductors
Program: VEGA
Project leader: Ing. Vojenčiak Michal PhD.
Duration: 1.1.2015 – 31.12.2017