Design, analysis, and fabrication of salient field-pole for a 1-kW-class HTS rotating machine
- Authors
- Kim, Ji Hyung; Hyeon, Chang Ju; Quach, Huu Luong; Chae, Sang Heon; Chae, Yoon Seok; Moon, Jae Hyung; Boo, Chang-Jin; Yoon, Yong Soo; Lee, Jeyull; Jeon, Haeryong; Han, Seunghak; Kim, Young-Gyun; Lee, Haigun; Kim, Ho Min
- Issue Date
- 1월-2019
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Contactless rotary excitation device; Finite element analysis; High-temperature superconducting rotating machine; Salient-field pole
- Citation
- CRYOGENICS, v.97, pp.126 - 132
- Indexed
- SCIE
SCOPUS
- Journal Title
- CRYOGENICS
- Volume
- 97
- Start Page
- 126
- End Page
- 132
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/68470
- DOI
- 10.1016/j.cryogenics.2018.10.018
- ISSN
- 0011-2275
- Abstract
- This paper presents the results of our electromagnetic parametric design, two-dimensional finite element analysis (2-D FEA), final fabrication, and basic test to develop a salient-field pole in rotor for a 1-kW-class high-temperature superconducting rotating machine (HTSRM). The developed machine is a small-scale prototype for an integrated system with an HTS rotating machine and a HTS contactless rotary excitation device, which is connected to the same shaft of the rotating machine and charges the HTS coils of the rotor field winding by pumping fluxes via a non-contact method. To increase economic efficiency during the development stage and the performance of the 1-kW-class HTSRM, various salient-pole structures of the rotor and magnetic materials of both the rotor and stator are considered. Using the time-transient solver of the 2-D FEA, various key design parameters are investigated and compared by considering structural dimensions of the salient-field pole. Then, the final 2-D FEA model is determined based on the parametric-analysis results, and a performance analysis is conducted to determine the various machine characteristics. Finally, the salient-field pole of the 1-kW-class HTSRM was fabricated using four race-track HTS single-pancake coils, and its basic characteristics were measured at 77 K.
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