Journal
IEEE ACCESS
Volume 9, Issue -, Pages 77930-77937Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/ACCESS.2021.3062278
Keywords
External magnetic field; harmonic phase angle; HTS coated conductor; magnetization AC loss
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Funding
- EPSRC [EP/S000720/1] Funding Source: UKRI
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This study investigated the effect of different phase angles and amplitudes of magnetic field harmonics on the magnetization loss of high temperature superconducting coated conductors (CCs), finding that the phase angle of the field harmonic has a significant impact on the magnetization loss.
Previous studies on magnetization AC loss of high temperature superconducting (HTS) coated conductors (CCs) taken into account the ideally sinusoidal external magnetic field, or non-sinusoidal by considering only the harmonics in phase with the fundamental component. However, realistically magnetic field often contains harmonics with different phase angles and amplitudes. In this paper, magnetization AC loss in HTS CC was studied, considering the phase angle phi of each harmonic; assuming superconductor is subjected to external magnetic field which is distorted by the 3rd and the 5th harmonics. Phase angle of each harmonic was considered in the range of 0 to pi and amplitude of fundamental magnetic field, was assumed as 10, 20, 50, and 100 mT. Different distortion level of magnetic field was considered too. It is concluded that phase angle of field harmonic has a significant effect on magnetization loss of HTS CCs.
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