frankfurt (germany), 6-9 june 2011 luciano martini – it – rif s1 – paper 1162 the eccoflow eu...
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Frankfurt (Germany), 6-9 June 2011
Luciano Martini – IT – RIF S1 – Paper 1162
The ECCOFLOW EU FP7 Project: Design and Simulations Results of a
Superconducting Fault Current Limiter for Operation in Electricity Networks
Luciano MARTINI*, Mathias NOE#, Pascal TIXADOR°,Achim HOBL§, Marco BOCCHI*
* RSE – Italy# KIT – Germany
° Grenoble INP – France§ Nexans SuperConductors – Germany
Frankfurt (Germany), 6-9 June 2011
The Superconducting Fault Current Limiter The FP7 EU Project ECCOFLOW
Participants and objectives Site installations
SFCL Specifications SFCL Device Conceptual Design Short-circuit Simulation Results
OUTLINE
Luciano Martini – IT – RIF S1 – Paper 1162
Frankfurt (Germany), 6-9 June 2011
Luciano Martini – IT – RIF S1 – Paper 1162
Major Benefits from SFCL Applications
Frankfurt (Germany), 6-9 June 2011
Luciano Martini – IT – RIF S1 – Paper 1162
FP7 EU Project ECCOFLOW
Kosice
Barcelona
Siegen
Milano
Stockholm
Consortium with 5 utilities!
Frankfurt (Germany), 6-9 June 2011
Luciano Martini – IT – RIF S1 – Paper 1162
FP7 EU Project ECCOFLOW
www.eccoflow.org
Frankfurt (Germany), 6-9 June 2011
Luciano Martini – IT – RIF S1 – Paper 1162
FP7 EU Project ECCOFLOW
Frankfurt (Germany), 6-9 June 2011
Luciano Martini – IT – RIF S1 – Paper 1162
FP7 EU Project ECCOFLOW
Frankfurt (Germany), 6-9 June 2011
Luciano Martini – IT – RIF S1 – Paper 1162
Site 1 Site 2 ECCOFLOW
Nominal Voltage (kV) 16.5 24 2400
Nominal Current (A) 1000 1005 100500
Short Circuit Current (kA) 21.7 25.6 25.600
Max. Limited first peak (kA) 10.8 17 10.800
Recovery Time (s) < 30 < 30 < 3000
AC withstand Voltage (kV) 50 50 5000
Lightning Impulse (kV) 125 125 12500
Main specifications for both SFCL locations
SFCL Specifications
Frankfurt (Germany), 6-9 June 2011
Luciano Martini – IT – RIF S1 – Paper 1162
Conceptual sketch of the SFCL system including all major parts in a single-phase line diagram
SFCL Device Conceptual Design
..
.HTS component
Cryostat
HTS module
Bushing
Current leads
LN2
Circuit Breaker
Air coil
Cooling system
SFCL system
Grid impedance
Source voltage ..
.HTS component
Cryostat
HTS module
Bushing
Current leads
LN2
Circuit Breaker
Air coil
Cooling system
SFCL system
Grid impedance
Source voltage
Frankfurt (Germany), 6-9 June 2011
Luciano Martini – IT – RIF S1 – Paper 1162
Limited current and SFCL temperature after a 120 ms fault transient, as function of shunt impedance
Simulation Results
60
110
160
210
260
310
360
410
460
510
1.2 1.6 2 2.4 2.8 3.2 3.6 4 4.4 4.8 5.2 5.6 6
Shunt Impedance (Ohm)
Tem
pera
ture
(K
)
6
7
8
9
10
11
12
13
14
15
Lim
ited
ISC
at
1st p
osit
ive
peak
(kA
)
L= 960 m L=1080 mL=1200 mL=1320 m
L=1440 mL=1560 mL=1320 mL=1680 m
Frankfurt (Germany), 6-9 June 2011
Luciano Martini – IT – RIF S1 – Paper 1162
3-phase fault (V=24 kV, Inom=1 kA, ISC=12 kArms): Evolution of ILim, ISC and THTS
-25000
-20000
-15000
-10000
-5000
0
5000
10000
15000
20000
25000
30000
30 50 70 90 110 130 150 170Time (ms)
Cu
rren
t (A
)
75
105
135
165
195
225
255
285
315
345
375
405
Tem
per
atu
re (
K)
THTS L 1
— ILim L 1 — ILim L 2 — ILim L 3
— ISC L 1 — ISC L 2 — ISC L 3
Short-circuit Simulation Results
Frankfurt (Germany), 6-9 June 2011
This work is funded by the European Union Seventh Framework Program (FP7/2007-2013) under the grant agreement No. 241285.
The authors would like to thank:
K. de Tessieres and J. Bock (Nexans)
J. Frau Valenti (ENDESA) and M. Fedorko (VSE) for providing the network installation information
Acknowledgments
Luciano Martini – IT – RIF S1 – Paper 1162
Frankfurt (Germany), 6-9 June 2011
Luciano Martini – IT – RIF S1 – Paper 1162
Thank you for your attention