Cost effective FCL using advanced superconducting tapes for future HVDC grids

Abstract:

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 HVDC 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.

FASTGRID

H2020-NMBP-2016-2017-721019
  • Total cost: EUR 9 031 376,79
  • EU contribution: EUR 7 248 235,42
  • Coordinated in: France
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Coordinator

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
France (EU contribution: EUR 429 952,75)
RUE MICHEL ANGE 3
75794 PARIS
France
Activity type: Research Organisations

Participants

SUPERGRID INSTITUTE
France (EU contribution: EUR 1 226 930,25)
130 RUE LEON BLUM
69100 VILLEURBANNE
France
Activity type: Private for-profit entities (excluding Higher or Secondary Education Establishments)
 
AGENCIA ESTATAL CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS
Spain (EU contribution: EUR 669 622,79)
CALLE SERRANO 117
28006 MADRID
Spain
Activity type: Research Organisations
 
OXOLUTIA SL
Spain ((EU contribution: EUR 490 000,88)
EDIFICI EUREKA PARC DE RECERCA DE
08193 BELLATERRA
Spain
Activity type: Private for-profit entities (excluding Higher or Secondary Education Establishments)
 
THEVA DUENNSCHICHTTECHNIK GMBH
Germany (EU contribution: EUR 1 442 437,50)
ROTE KREUZ STRASSE 8
85737 ISMANING
Germany
Activity type: Private for-profit entities (excluding Higher or Secondary Education Establishments)
 
RICERCA SUL SISTEMA ENERGETICO – RSE SPA
Italy (EU contribution: EUR 760 073,75)
VIA RAFFAELE RUBATTINO 54
20134 MILANO
Italy
Activity type: Research Organisations
   
 
CORPORATION DE L ECOLE POLYTECHNIQUE DE MONTREAL ASSOCIATION
Canada (EU contribution: EUR 319 601,25)
BLVD EDOUARD MONTPETIT 2900
H3T 1J4 MONTREAL
Canada
Activity type: Higher or Secondary Education Establishments
 
TEL AVIV UNIVERSITY
Israel (EU contribution: EUR 650 000)
RAMAT AVIV
69978 TEL AVIV
Israel
Activity type: Higher or Secondary Education Establishments
 
KARLSRUHER INSTITUT FUER TECHNOLOGIE
Germany (EU contribution: EUR 759 668,75)
KAISERSTRASSE 12
76131 KARLSRUHE
Germany
Activity type: Higher or Secondary Education Establishments
 
Institute of Electrical Engineering, Slovak Academy of Sciences
Slovakia (EU contribution: EUR 399 947,50)
Dubravska 9
841 04 Bratislava
Slovakia
Activity type: Research Organisations
 
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE
Switzerland (EU contribution: EUR 0)
BATIMENT CE 3316 STATION 1
1015 LAUSANNE
Switzerland
Activity type: Higher or Secondary Education Establishments
 
SLOVENSKA TECHNICKA UNIVERZITA V BRATISLAVE
Slovakia (EU contribution: EUR 100 000)
VAZOVOVA 5
81243 BRATISLAVA
Slovakia
Activity type: Higher or Secondary Education Establishments
 

Institut de Ciència de Materials de Barcelona ICMAB CSIC

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