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http://dx.doi.org/10.9714/psac.2021.23.4.025

Measurement of magnetization loss according to the winding pitch of CORC®  

Han, Jinwoo (Korea Polytechnic University)
Choi, Kyeongdal (Korea Polytechnic University)
Kim, Woo-Seok (Korea Polytechnic University)
Lee, Ji-Kwang (Woosuk University)
Publication Information
Progress in Superconductivity and Cryogenics / v.23, no.4, 2021 , pp. 25-29 More about this Journal
Abstract
For the application of HTS wire to AC power equipment, a conductor with high current capacity and low loss is required. CORC®, one of the high-current conductors manufactured using several HTS wires, is made by winding the wires in a spiral on a cylindrical former. Because the magnetization loss of a CORC® conductor depends on the degree of magnetic coupling between the wires constituting the CORC®, it is necessary to know the value of the magnetization loss of the CORC® itself. In order to obtain an accurate loss value, it is necessary to know the effect of the ratio of the winding pitch of the CORC® conductor in the pickup coil region sampling the magnetization loss signal. To confirm this effect, we prepare CORC® samples having various winding pitches, and measure and compare the magnetization losses. In addition, the magnetization loss was measured while rotating the CORC® samples and it was examined whether there was a difference in the magnetization loss according to the rotation.
Keywords
CORC; magnetization loss; AC loss; HTS;
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1 J. Goo et al., " Magnetization loss estimation of HTS solenoid coils wound with CORC," IEEE Trans. Appl. Supercond., vol. 30, no. 4, Jun. 2020, Art. no. 4704007.
2 J.-K. Lee et al., "AC loss analysis of striated HTS compact cables for low loss cable design," IEEE Trans. Appl. Supercond., vol. 23, no. 3, Jan. 2013, Art. no. 5900804.
3 E. Pardo et al., "Ac loss modelling and measurement of superconducting transformers with coated-conductor Roebel-cable in lowvoltage winding," Supercond. Sci. Technol., vol. 28, no. 11, Oct. 2015, Art. no. 114008.
4 W. Goldacker et al., "Roebel cables from REBCO coated conductors: A one-century-old concept for the superconductivity of the future," Supercond. Sci. Technol., vol. 27, no. 9, Aug. 2014, Art. no. 093001.
5 M. Vojenciak et al., "Magnetization ac loss reduction in HTS CORC cables made of striated coated conductors," Supercond. Sci. Technol., vol. 28, no. 10, Sep. 2015.
6 J. Goo, J. -W. Han, S. Lee, W. -S. Kim, K. Choi and J. -K. Lee, "Magnetization Loss of CORC With Various Configurations of 2G HTS Strands," in IEEE Transactions on Applied Superconductivity, vol. 31, no. 5, pp. 1-5, Aug. 2021, Art no. 5901205
7 Z. Jiang and N. Amemiya, "An experimental method for total AC loss measurement of high Tc superconductors," Supercond Sci. Technol., vol. 17, no. 3, pp. 371-379, Mar. 2004.   DOI
8 N. Glasson et al., "Test results and conclusions from a 1 MVA superconducting transformer featuring 2G HTS Roebel cable," IEEE Trans. Appl. Supercond., vol. 29, no. 4, Jun. 2017, Art. no. 5500205.
9 F. Grilli, A. Kario, "How filaments can reduce AC losses in HTS coated conductors: A review," Supercond. Sci. Technol., vol. 29, no. 8, Jul. 2016, Art. no. 083002.
10 J. Souc, et al., "Low AC loss cable produced from transposed striated CC tapes," Supercond. Sci. Technol., vol. 26, no. 7, Jun. 2013.
11 J. D. Weiss et al., "Introduction of CORC wires: Highly flexible, round high-temperature superconducting wires for magnet and power transmission applications," Supercond. Sci. Technol., vol. 30, no. 1, Jan. 2017, Art. no. 014002.