Journal
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
Volume 28, Issue 4, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TASC.2018.2819209
Keywords
Current phase angle; finite-element analysis; high-temperature superconducting wound-field synchronous machine; maximum torque per ampere
Funding
- Korea Institute of Energy Technology Evaluation and Planning (KETEP) - Ministry of Trade, Industry and Energy
- National Research Foundation of Korea (NRF) - Korea government (MSIP), Republic of Korea [20164030201230, 2016R1A2B4007324]
- Korea Evaluation Institute of Industrial Technology (KEIT) [18-12-N0101-87] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [21A20130012366, 2016R1A2B4007324] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We present the results of a two-dimensional electromagnetic finite-element analysis of a 1-kW-class high-temperature superconducting (HTS) wound-field synchronous motor that considers armature-current information, i.e., current phase angle beta and current I-a, for maximum torque per ampere and flux-weakening control. The torque performance was analyzed using the d- and q-axis inductances, which were estimated when beta and I-a were varied. Then, the characteristics of the magnetic field distribution and operating current margin of the HTS field coils were investigated based on various beta and I-a values. Finally, suitable beta and I-a were estimated as references for a future study.
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