Experience in Development of HTS-2 Annular Field Coils for a High-Power Synchronous Generator

  • Anatoliy I. AGEEV
  • Igor’ V. BOGDANOV
  • Sergey S. KOZUB
  • Vladimir M. SMIRNOV
  • Ivan S. TERSKIY
  • Leonid M. TKACHENKO
  • Viktor I. SHUVALOV
  • Dmitriy S. DEZHIN
  • Roman I. IL’YASOV
  • Konstantin L. KOVALEV
  • Kirill A. MODESTOV
DOI: https://doi.org/10.24160/0013-5380-2024-12-4-14
Keywords: second-generation high-temperature superconductor, superconducting coil, critical current, synchronous generator

Abstract

NRC Kurchatov Institute - IHEP has developed a technology for the manufacture of annular coils from a second generation high-temperature superconductor (HTS-2 tape). Jointly with the Moscow Aviation Institute, two excitation coils were developed and manufactured from HTS-2 tape in their own cryostats for the synchronous generator model. In doing so, a method was developed for applying to the HTS-2 tape an electric insulation consisting of polyimide film layers with a total thickness of 26 μm. Such insulation provides sufficient electrical strength at a 2500 V voltage with a pressure of up to 5 kg/cm2. At the intermediate stage of manufacture, after the coils had been wound and the shroud applied, the coils manufacturing quality was checked by measuring the coils critical current when immersing them into a liquid nitrogen bath. At the final stage, the coils residing in their own cryostats were cooled with liquid nitrogen in the forced circulation mode. When cooling the coils to the operating temperature, the pressure drop across the cryogenic agent flow was 0.02 MPa, and the cooling time took about 1 h. A limit current value at which stable coil operation will be retained has been found. This current is 116 A and 126 A for the first and second coils, respectively, which is higher than the design operating current when using these coils in the synchronous generator model. An experimental model of a synchronous generator with these HTS-2 coils used as axial field windings was manufactured and tested. During the tests, the generator no-load characteristics, as well as its loading and adjustment characteristics were measured. The test results correspond to the calculated ones.

Author Biographies

Anatoliy I. AGEEV

(National Research Center "Kurchatov Institute" – Institute of High Energy Physics, Protvino, Moscow Region, Russia) – Chief Scientist of the Engineering Physics Dept., Dr. Sci. (Eng.).

Igor’ V. BOGDANOV

(National Research Center "Kurchatov Institute" – Institute of High Energy Physics, Protvino, Moscow Region, Russia) – Senior Scientist at the Laboratory of Physical and Technical Problems of the Engineering Physics Dept.

Sergey S. KOZUB

(National Research Center "Kurchatov Institute" – Institute of High Energy Physics, Protvino, Moscow Region, Russia) – Head of the Engineering Physics Dept., Dr. Sci. (Phys.-Math.).

Vladimir M. SMIRNOV

(National Research Center "Kurchatov Institute" – Institute of High Energy Physics, Protvino, Moscow Region, Russia) – Leading Engineer at the Non-standard Equipment Sector of the Engineering Physics Dept.

Ivan S. TERSKIY

(National Research Center "Kurchatov Institute" – Institute of High Energy Physics, Protvino, Moscow Region, Russia) – Leading Engineer at the Cryogenics Laboratory of the Engineering Physics Dept.

Leonid M. TKACHENKO

(National Research Center "Kurchatov Institute" – Institute of High Energy Physics, Protvino, Moscow Region, Russia) – Head of the Laboratory of Physical and Technical Problems of the Engineering Physics Dept., Dr. Sci. (Phys.-Math.).

Viktor I. SHUVALOV

(National Research Center "Kurchatov Institute" – Institute of High Energy Physics, Protvino, Moscow Region, Russia) – Leading Design Engineer at the Non-Standard Equipment Sector of the Engineering Physics Dept.

Dmitriy S. DEZHIN

(Moscow Aviation Institute (National Research University), Moscow, Russia) – Docent of the Electric Power, Electromechanical and Biotechnical Systems Dept., Cand. Sci. (Eng.).

Roman I. IL’YASOV

(Moscow Aviation Institute (National Research University), Moscow, Russia) – Docent of the Electric Power, Electromechanical and Biotechnical Systems Dept., Cand. Sci. (Eng.).

Konstantin L. KOVALEV

(Moscow Aviation Institute (National Research University), Moscow, Russia) – Head of the Electric Power, Electromechanical and Biotechnical Systems Dept., Dr. Sci. (Eng.), Professor.

Kirill A. MODESTOV

(Moscow Aviation Institute (National Research University), Moscow, Russia) – Docent of the Electric Power, Electromechanical and Biotechnical Systems Dept., Cand. Sci. (Eng.).

References

1. Larbalestier D. et al. High-Tc Superconducting Materials for Electric Power Applications. – Nature, 2001, vol. 414, pp. 368–377, DOI: 10.1038/35104654.
2. Barnes P.N., Sumption M.D., Rhoads G.L. Review of High Power Density Superconducting Generators: Present State and Prospects for Incorporating YBCO Windings. – Cryogenics, 2005, vol. 45, pp. 670–686, DOI: 10.1016/j.cryogenics.2005.09.001.
3. Haran K.S. et al. High Power Density Superconducting Rotating Machines – Development Status and Technology Road-map. – Superconducting Science and Technology, 2017, vol. 30, DOI: 10.1088/1361 6668/aa833e.
4. Leveque J., Berger K., Douine B. Superconducting Motors and Generators. – High-Temperature Superconductors: Occurrence, Synthesis and Applications / Ed. by M. Miryala, M.R. Koblischka, New York, U.S.A.: Nova Science Publishers, 2018, Chapter 12, pp. 263–290.
5. Grilli F. et al. Superconducting Motors for Aircraft Propulsion: The Advanced Superconducting Motor Experimental Demonstrator Project. – Journal of Physics: Conference Series, 2020, vol. 1590, No. 1, DOI: 10.1088/1742 6596/1590/1/012051.
6. Dezhin D.S. et al. Synchronous Motor with HTS-2G Wires. – Journal of Physics: Conference Series, 2014, vol. 507, No. 3, DOI: 10.1088/1742 6596/507/3/032011.
7. Kozub S. et al. HTS Racetrack Coils for Electrical Machines. – Refrigeration Science and Technology, 2014, pp. 283–287.
8. Dezhin D.S. et al. Design and Testing of 200 kW Synchronous Motor with 2G HTS Field Rotor Coils. – IOP Conference Series: Earth and Environmental Science, 2017, vol. 87, DOI: 10.1088/1755 1315/87/3/032007.
9. Kovalev K.L. et al. 1 MVA HTS-2G Generator for Wind Turbines. – IOP Conference Series: Earth and Enviromental Science, 2017, vol. 87, DOI: 10.1088/1755 1315/87/3/032018.
10. Lee S. et al. Development and Production of Second Generation High Tc Superconducting Tapes at SuperOx and First Tests of Model Cables. – Superconductor Science and Technology, 2014, vol. 27, DOI: 10.1088/0953-2048/27/4/044022.
11. Samoilenkov S. et al. Customised 2G HTS Wire for Applications. – Superconductor Science and Technology, 2016, vol. 29, DOI: 10.1088/0953-2048/29/2/024001.
12. Balashov N.N. et al. Low-Resistance Soldered Joints of Commercial 2G HTS Wire Prepared at Various Values of Applied Pressure. – IEEE Transactions on Applied Superconductivity, 2018, 28(4), DOI: 10.1109/TASC.2018.2806388.
13. Skarba M. et al. Thermal Cycling of (RE)BCO-Based Superconducting Tapes Joined by Lead-Free Solders. – Materials, 2021, vol. 14, No. 4, DOI: 10.3390/ma14041052.
14. Matras M., Fleiter J., Ballarino A. Measurement of Splice Resistance and Normal Zone Propagation Velocity in REBCO Tapes for the Superconducting Link of HL-LHC. – Journal of Physics: Conference Series, 2020, 1559(1), DOI: 10.1088/1742-6596/1559/1/012129.
15. Critical Current Characterisation of SuperOx YBCO 2G HTS Superconducting Wire [Электрон. ресурс], URL: https://figshare.com/articles/dataset/Critical_current_characterisation_of_SuperOx_YBCO_2G_HTS_superconducting_wire/13708690 (дата обращения 01.10.2024).
16. Kovalev K.L. et al. Brushless Superconducting Synchronous Generator with Claw-Shaped Poles and Permanent Magnets. – IEEE Transactions on Applied Superconductivity, 2016, 26(3), DOI: 10.1109/TASC.2016.2528995
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1. Larbalestier D. et al. High-Tc Superconducting Materials for Electric Power Applications. – Nature, 2001, vol. 414, pp. 368–377, DOI: 10.1038/35104654.
2. Barnes P.N., Sumption M.D., Rhoads G.L. Review of High Power Density Superconducting Generators: Present State and Prospects for Incorporating YBCO Windings. – Cryogenics, 2005, vol. 45, pp. 670–686, DOI: 10.1016/j.cryogenics.2005.09.001.
3. Haran K.S. et al. High Power Density Superconducting Rotating Machines – Development Status and Technology Road-map. – Superconducting Science and Technology, 2017, vol. 30, DOI: 10.1088/1361 6668/aa833e.
4. Leveque J., Berger K., Douine B. Superconducting Motors and Generators. – High-Temperature Superconductors: Occurrence, Synthesis and Applications / Ed. by M. Miryala, M.R. Koblischka, New York, U.S.A.: Nova Science Publishers, 2018, Chapter 12, pp. 263–290.
5. Grilli F. et al. Superconducting Motors for Aircraft Propulsion: The Advanced Superconducting Motor Experimental Demonstrator project. – Journal of Physics: Conference Series, 2020, vol. 1590, No. 1, DOI: 10.1088/1742 6596/1590/1/012051.
6. Dezhin D.S. et al. Synchronous Motor with HTS-2G Wires. – Journal of Physics: Conference Series, 2014, vol. 507, No. 3, DOI: 10.1088/1742 6596/507/3/032011.
7. Kozub S. et al. HTS Racetrack Coils for Electrical Machines. – Refrigeration Science and Technology, 2014, pp. 283–287.
8. Dezhin D.S. et al. Design and Testing of 200 kW Synchronous Motor with 2G HTS Field Rotor Coils. – IOP Conference Series: Earth and Environmental Science, 2017, vol. 87, DOI: 10.1088/1755 1315/87/3/032007.
9. Kovalev K.L. et al. 1 MVA HTS-2G Generator for Wind Turbines. – IOP Conference Series: Earth and Enviromental Science, 2017, vol. 87, DOI: 10.1088/1755 1315/87/3/032018.
10. Lee S. et al. Development and Production of Second Generation High Tc Superconducting Tapes at SuperOx and First Tests of Model Cables. – Superconductor Science and Technology, 2014, vol. 27, DOI: 10.1088/0953-2048/27/4/044022.
11. Samoilenkov S. et al. Customised 2G HTS Wire for Applications. – Superconductor Science and Technology, 2016, vol. 29, DOI: 10.1088/0953-2048/29/2/024001.
12. Balashov N.N. et al. Low-Resistance Soldered Joints of Commercial 2G HTS Wire Prepared at Various Values of Applied Pressure. – IEEE Transactions on Applied Superconductivity, 2018, vol. 28, No. 4, DOI: 10.1109/TASC.2018.2806388.
13. Skarba M. et al. Thermal Cycling of (RE)BCO-Based Superconducting Tapes Joined by Lead-Free Solders. – Materials, 2021, vol. 14, No. 4, DOI: 10.3390/ma14041052.
14. Matras M., Fleiter J., Ballarino A. Measurement of Splice Resistance and Normal Zone Propagation Velocity in REBCO Tapes for the Superconducting Link of HL-LHC. – Journal of Physics: Conference Series, 2020, vol. 1559, No. 1, DOI: 10.1088/1742-6596/1559/1/012129.
15. Critical current characterisation of SuperOx YBCO 2G HTS superconducting wire [Electron. resource], URL: https://figshare.com/articles/dataset/Critical_current_characterisation_of_SuperOx_YBCO_2G_HTS_superconducting_wire/13708690 (Date of appeal 01.10.2024).
16. Kovalev K.L. et al. Brushless Superconducting Synchronous Generator with Claw-Shaped Poles and Permanent Magnets. – IEEE Transactions on Applied Superconductivity, 2016, vol. 26, No. 3, DOI: 10.1109/TASC.2016.2528995
Published
2024-10-31
Issue
No 12 (2024): Issue № 12
Section
Article