EolSupra20
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Current status & perspectives
L. Quéval, L. Vido, C. Berriaud
loic.queval@geeps.centralesupelec.fr
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I. Motivation
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Challenge: wind energy production
[1] adapted from "World energy outlook 2011," IEA, 2011.
[2] adapted from "Global wind energy outlook 2012," GWEC, 2012.
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Lifecycle cost breakdown of offshore windfarm
Decommissioning
1%
Retrofit & Overhaul
6%
Assembly, Transport
& Installation
11%
Transmission
System to Shore
6%
Electric Collection
System
Tower
2%
9%
Lightweight
Other
5%
Wind turbine
24%
Multi-MW
generator
Yearly Operation
& Maintenance
27%
Foundation
9%
Direct drive generator
[1] adapted from S.A. Herman, "DOWEC cost model, Implementation, DOWEC-068," DOWEC project, 2003.
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World’s largest wind
turbine generator
Haliade-X from GE
12 MW
'16
Source: EWEA
© ge.com
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Towards 20 MW offshore wind turbines
[1] R. Bos, W. Bierbooms, “Extreme gust loads for novel wind turbines,” EAWE 9th seminar on Wind Energy, Delft University of Technology, 2013.
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Comparison 10 MW direct-drive PMSG vs. HTS SG
PMSG
HTS
SG
Ø 13.1 m
232 tons
Ø 4.7 m
108 tons
[1] L. Quéval, “Modeling and simulation of grid-connected superconducting wind turbine generators,” PhD thesis, The University of Tokyo, Tokyo, Japan, 2013. Online:
www.lqueval.com
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III. Past projects
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Founding article
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Design of partially SC WT generators (ironless)
[1] H. Ohsaki, Y. Terao, R. M. Quddes, “Electromagnetic characteristics of 10 MW class superconducting wind turbine generators,” Int. Conf. on Electrical Machines and
Systems, pp. 1303-1306, 10-13 Oct 2010.
[2] M. R. Quddes, M. Sekino, H. Ohsaki, N. Kashima, S. Nagaya, "Electromagnetic Design Study of Transverse Flux Enhanced Type Superconducting Wind Turbine Generators,"
IEEE Transactions on Applied Superconductivity, vol. 21, no. 3, pp. 1101-1104, June 2011.
[3] H. Ohsaki, Y. Terao, M. Sekino, “Wind turbine generator using superconducting coils and bulks,” J. Phys.: Conf. Ser., vol. 234, part. 3, 2010.
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Design of partially SC WT generators (with iron)
[1] H. Ohsaki, L. Quéval, Y. Terao, "Design and characteristic analysis of 10 MW class superconducting wind turbine generators with different types of stator and rotor
configurations," 4th International Conference on Clean Electrical Power (ICCEP 2013), Alghero, Italy, June 2013.
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Design of fully SC WT generators
[2]
[1]
[1] Y. Terao, M. Sekino, H. Ohsaki, "Electromagnetic design of 10 MW class fully superconducting
wind turbine generators," IEEE Trans. on Applied Superconductivity, vol. 22, no. 3, 2012.
[2] Y. Terao, “Electromagnetic design of light weight and high-power density superconducting
synchronous machines for 10 MW class wind turbine generators,” PhD thesis, The University of
Tokyo, Tokyo, Japan, 2013.
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[2]
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Simulation of grid-connected SC WT generators
WECS model
Machine model
HTS Tape model
Nonlinear
abc-model
External
systems
Control
strategy
FE model
FE model
A-formulation
H-formulation
[1] L. Quéval, H. Ohsaki, "AC losses of a grid-connected superconducting wind turbine generator," IEEE Trans. on Applied Superconductivity, vol. 23, no. 3, pp. 5201905, 2013.
[2] L. Quéval, M. Sekino, H. Ohsaki, "A coupled FE phase-domain model for superconducting synchronous machine," IEEE Trans. on Applied Superconductivity, vol. 22, no. 3,
pp. 5200804, 2012.
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Numerical models for large superconducting coils
Reference
model
Homogenized
model
Multi-scale
model
[1] L. Quéval, V.M.R. Zermeño, F. Grilli, “Numerical models for AC loss calculation in large-scale applications of HTS coated conductors,” Superconductor Science and
Technology, vol. 29, no. 2, Jan. 2016.
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III. Commercial concepts (>1 MW)
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(Envision, Jeumont Electric)
[1] C. Bührer, "Attempting to shift a paradigm: HTS generators for cost-sensitive applications," DBU Seminar, Osnabrück, April 2016.
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Development in USA
DOE funded project to “Develop High-Efficiency, Lightweight Wind Turbine Generators for
Tall Wind and Offshore Applications”
• [July 2019] DOE selected projects
• Each of the selected projects received $500,000 to design a wind turbine generator that
can be scaled up to at least 10 megawatts.
• 2 projects developed superconducting generators
• AMSC develops HTS based concept – funding stopped
• GE develops LTS based concept – 2nd phase started to develop a scaled demonstrator
• [Jan 2021] DOE selected GE to receive up to $20.3 million to build and test a scaled
prototype of their generator on a wind turbine.
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AMSC 10 MW Seatitan
© AMSC
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GE 10 MW Ecomagination
© GE
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AML 10 MW fully SC
© AML
[1] L. Quéval, R. Gottkehaskamp, "Analytical field calculation of modulated double helical coils," IEEE Transactions on Applied Superconductivity, vol. 25, no. 6, pp. 4901307,
Dec. 2015.
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Development in EU
• SUPRApower
• EcoSwing
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SUPRApower
© SUPRApower
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EcoSwing
[1] M. Bauer, “Superconducting generators for wind power, EcoSwing generator and outlook,” COST ACTION 19108 Hi-Scale first joint WG3/4 industry-academia workshop on
applications for HTS technologies in the electrical energy chain, [online], Apr. 2021.
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EcoSwing
[1] M. Bauer, “Superconducting generators for wind power, EcoSwing generator and outlook,” COST ACTION 19108 Hi-Scale first joint WG3/4 industry-academia workshop on
applications for HTS technologies in the electrical energy chain, [online], Apr. 2021.
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EcoSwing
[1] M. Bauer, “Superconducting generators for wind power, EcoSwing generator and outlook,” COST ACTION 19108 Hi-Scale first joint WG3/4 industry-academia workshop on
applications for HTS technologies in the electrical energy chain, [online], Apr. 2021.
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EcoSwing
[1] M. Bauer, “Superconducting generators for wind power, EcoSwing generator and outlook,” COST ACTION 19108 Hi-Scale first joint WG3/4 industry-academia workshop on
applications for HTS technologies in the electrical energy chain, [online], Apr. 2021.
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EcoSwing
[1] M. Bauer, “Superconducting generators for wind power, EcoSwing generator and outlook,” COST ACTION 19108 Hi-Scale first joint WG3/4 industry-academia workshop on
applications for HTS technologies in the electrical energy chain, [online], Apr. 2021.
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Development in South Korea
10 MW generator
[1] M. Bauer, “Superconducting generators for wind power, EcoSwing generator and outlook,” COST ACTION 19108 Hi-Scale first joint WG3/4 industry-academia workshop on
applications for HTS technologies in the electrical energy chain, [online], Apr. 2021.
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IV. EolSupra20
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EolSupra20
Feasibility study of a 20 MW superconducting wind turbine generator
MgB2
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IV. EolSupra20
a) Around the generator
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EolSupra20
Design and optimization of the electromagnetic/cryogenic designs of a 20 MW fully SC wind
turbine generator to minimize the LCOE
Fig. 1 - EolSupra20 electromagnetic design
Fig. 2 - EolSupra20 cryogenic design
[1] T.-K. Hoang, L. Quéval, L. Vido, C. Berriaud, “Impact of the rotor blade technology on the levelized cost of energy of an offshore wind turbine,” Joint International
Conference OPTIM-ACEMP, Brasov, Romania, May 2017.
[2] T.-K. Hoang, L. Quéval, C. Berriaud, L. Vido, “Design of a 20 MW fully superconducting wind turbine generator to minimize the levelized cost of energy,” IEEE Transactions
on Applied Superconductivity, vol. 28, no. 4, pp. 1-4, June 2018.
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Benchmark &
Results
Flux pump
𝑣𝑣𝑐𝑐𝑐𝑐𝑐𝑐𝑐𝑐𝑐𝑐 𝑡𝑡 [𝜇𝜇𝜇𝜇]
Current leads
𝑣𝑣𝑒𝑒𝑒𝑒 𝑡𝑡 [𝜇𝜇𝜇𝜇]
HTS dynamo-type flux pump
[1] M.D. Ainslie, F. Grilli, L. Quéval, E. Pardo, F. Perez-Mendez, R. Mataira, A. Morandi, A. Ghabeli, C. Bumby, R. Brambilla, “A new benchmark for electromagnetic modelling
of superconductors: the high-Tc superconducting dynamo,” Superconductor Science and Technology, vol. 33, no. 10, pp. 105009, Aug. 2020.
[2] M.D. Ainslie, L. Quéval, R.C. Mataira, C.W. Bumby, “Modelling the frequency dependence of the open-circuit voltage of a high-Tc superconducting dynamo,” IEEE
Transactions on Applied Superconductivity, vol. 31, no. 5, pp. 1-7, Aug. 2021.
[3] A. Ghabeli, M. Ainslie, E. Pardo, L. Quéval, R. Mataira, “Modeling the charging process of a coil by an HTS dynamo-type flux pump,” accepted for publication in
Superconductor Science and Technology, Apr. 2021.
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EolSupra20
Estimation of the LCOE of resistive vs. HTS generator
Fig. 1 – Components of a wind turbine and impact of modification of the generator
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IV. EolSupra20
b) Around the wind farm
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EolSupra20
Design and optimization of the wind farm layout and its cabling to minimize the LCOE
Fig. 2 – Wake effect and cabling
Fig. 1 – Bidding area
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EolSupra20
22 GW
621 MW
59 Km
of offshore wind capacity
installed in Europe
Average size of a wind
farm in 2019
Average distance to shore in
2019
3,6 GW
The average size has
almost doubled in the
last decade
The distance continues to
increase and can go beyond
additional capacity installed
in Europe in 2019
120 km
Due to the increased relevance of the offshore
collection system and of the transmission system, what
are the optimal cable layout and optimal transmission
system to collect and transmit the power from the
wind farm to the shore ?
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EolSupra20
HVAC vs. HVDC
1 GW wind farm
@breakeven point
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GeePs MTDC Plateform (20210408)
MMC
MMC
HB 3-phase 6-levels
FB 3-phase 6-levels
VSC
VSC
2-levels
2-levels
DC/DC
VSC
VSC
2-levels
2-levels
VSC
VSC
2-levels
2-levels
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PV
DC/DC
3 kWp
DC/DC
PV
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3 kWp
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Full-bridge modular multilevel converter
• Conception and construction of a 3-phase 6-level full-bridge MMC
• Contribution to the sizing of the MMC
MMC PQ diagram with external and internal limits:
[1] B. Džonlaga, “Contribution to the sizing of the modular multilevel converter,” PhD
thesis, University Paris-Saclay, GeePs, Gif-sur-Yvette, France, 2019.
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AC grid current
DC grid current
modulation index
IGBT current
module capacitor voltage ripple
module capacitor current ripple
arm current
module capacitor average voltage
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Superconducting components for the grid
HTS core cable
prototype
MgB2
BSCCO
tape
EolSupra20
SC cable
Superconducting power filter
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Featured in IEEE Spectrum next to INNWIND.EU
project (20 M€), Suprapower (5.4 M€) and
EcoSwing (14 M€) !
Merci !
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