Abstract
High temperature superconducting (HTS) synchronous machines are compact and light weight machines with higher torque to weight ratio, lower noise and better dynamic response for strategic and critical industrial applications. The development of HTS field coil is one of the main technological challenges in realizing the HTS synchronous machines, as it involves the selection of HTS tape, winding technology, handling of the HTS tape while winding on a winding machine and testing of the developed HTS coil at desired cryogenic temperatures. With advancements in HTS tape technology, recent 2G HTS tapes are offered with higher engineering current densities with respect to 1G HTS tapes even at higher magnetic fields. Hence, the replacement of 1G HTS field coils of previously designed 200 kVA HTS synchronous machine with 2G HTS field coils at the same operating cryo-temperature shows a potential to enhance its capacity to 350 kVA (more than 75% increase in machine output). In the present work the details of design, development and testing of a double pancake type 2G HTS field coil are presented for capacity enhancement of earlier 1G based 200kVA HTS synchronous machine.
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References
Haran Kiruba S et al (2017) High power density superconducting rotating machines: development status and technology roadmap. Supercond Sci Technol 30(12):1–44
Kalsi SS (2004) HTS ship propulsion motors. In: 2004 IEEE power engineering society general meeting, Denver, vol 2, pp 2047–2048
Masson PJ, Brown GV, Soban DS, Luongo CA (2007) HTS machines as enabling technology for all-electric airborne vehicles. Supercond Sci Technol 20(8):748–756
VAS Muralidhar Bathula et al. (2019) Development and testing of a 1 G based high temperature superconducting (HTS) double pancake coil for HTS synchronous machines. Physica C: Supercond Appl;562:36–41
Kim JH et al (2013) Conceptual design of a field coil for 5 MW HTS synchronous machine. J Supercond Novel Magn 26(4):1247–1251
Sohn MH et al (2004) Performance of high temperature superconducting field coils for a 100 HP motor. IEEE Trans Appl Supercond 14(2):912–915
Oomen M et al (2012) Manufacturing and test of 2G-HTS coils for rotating machines: challenges, conductor requirements, realization. Physica C (Amsterdam, Neth) 482:111–118
http://www.superpower-inc.com/system/files/SP_2G+Wire+Spec+Sheetfor+web_2012FEC_v2_1.pdf
Acknowledgements
The authors would like to acknowledge the management of Corporate R & D, Bharat Heavy Electricals Limited, Hyderabad, Dr. Abhay Singh Gour and Mr. Sudheer Thadela of Cryogenic Engineering Centre, IIT Kharagpur for their support extended during this work.
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Muralidhar Bathula, V.A.S., Sharma, D.K., Choudhury, U.K. et al. Development and Testing of 2G High Temperature Superconducting (HTS) Field Coils for HTS Synchronous Machines. J. Electr. Eng. Technol. 16, 1539–1546 (2021). https://doi.org/10.1007/s42835-021-00708-6
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DOI: https://doi.org/10.1007/s42835-021-00708-6