Computation of AC loss of HTS coils wound by coated conductors with different widths
The second-generation high-temperature superconductor (HTS) tape is a promising material for the HTS application. However, the extremely large aspect ratio of the HTS coated tape leads to high power dissipation in the environment of a time-varying magnetic field. Reducing the width of HTS coated tap...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2022-10-01
|
| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0105784 |
| _version_ | 1798023523352969216 |
|---|---|
| author | Liuyuan Yu Huadong Yong |
| author_facet | Liuyuan Yu Huadong Yong |
| author_sort | Liuyuan Yu |
| collection | DOAJ |
| description | The second-generation high-temperature superconductor (HTS) tape is a promising material for the HTS application. However, the extremely large aspect ratio of the HTS coated tape leads to high power dissipation in the environment of a time-varying magnetic field. Reducing the width of HTS coated tape is a feasible way to decrease the alternating current (AC) loss of devices composed of HTS tapes. In this study, a numerical model of the HTS coil group composed of six sub-coils based on the T-A formulation is presented in which each HTS sub-coil is wound with original or narrow width Y-Ba-Cu-O (YBCO) tape. The 1/3 and 1/4 narrow width tapes are used to represent the tapes, which are divided into three and four equal parts, respectively. Then, we calculate the AC losses in 1/3 and 1/4 narrow width HTS coil groups in different cases. The estimated results of AC loss are compared with those of the HTS coil group wound by HTS tapes with original width. The numerical results show that AC transport losses of 1/3 and 1/4 narrow width HTS coil groups are smaller than that of the original HTS coil group for the applied high current. Furthermore, with the decrease in tape width, the reduction of AC loss becomes more significant. In contrast with the original width HTS coil group, the magnetization losses of the 1/3 and 1/4 narrow width HTS coil groups will decrease at the high magnetic field. In addition, the influences of harmonic components on AC loss are also considered. |
| first_indexed | 2024-04-11T17:47:40Z |
| format | Article |
| id | doaj.art-6c14500f8e8c4f1581ebc0c3557ff381 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-04-11T17:47:40Z |
| publishDate | 2022-10-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-6c14500f8e8c4f1581ebc0c3557ff3812022-12-22T04:11:14ZengAIP Publishing LLCAIP Advances2158-32262022-10-011210105128105128-1210.1063/5.0105784Computation of AC loss of HTS coils wound by coated conductors with different widthsLiuyuan Yu0Huadong Yong1Key Laboratory of Mechanics on Disaster and Environment in Western China, Ministry of Education of China, and Department of Mechanics and Engineering Sciences, College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou, Gansu 730000, People’s Republic of ChinaKey Laboratory of Mechanics on Disaster and Environment in Western China, Ministry of Education of China, and Department of Mechanics and Engineering Sciences, College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou, Gansu 730000, People’s Republic of ChinaThe second-generation high-temperature superconductor (HTS) tape is a promising material for the HTS application. However, the extremely large aspect ratio of the HTS coated tape leads to high power dissipation in the environment of a time-varying magnetic field. Reducing the width of HTS coated tape is a feasible way to decrease the alternating current (AC) loss of devices composed of HTS tapes. In this study, a numerical model of the HTS coil group composed of six sub-coils based on the T-A formulation is presented in which each HTS sub-coil is wound with original or narrow width Y-Ba-Cu-O (YBCO) tape. The 1/3 and 1/4 narrow width tapes are used to represent the tapes, which are divided into three and four equal parts, respectively. Then, we calculate the AC losses in 1/3 and 1/4 narrow width HTS coil groups in different cases. The estimated results of AC loss are compared with those of the HTS coil group wound by HTS tapes with original width. The numerical results show that AC transport losses of 1/3 and 1/4 narrow width HTS coil groups are smaller than that of the original HTS coil group for the applied high current. Furthermore, with the decrease in tape width, the reduction of AC loss becomes more significant. In contrast with the original width HTS coil group, the magnetization losses of the 1/3 and 1/4 narrow width HTS coil groups will decrease at the high magnetic field. In addition, the influences of harmonic components on AC loss are also considered.http://dx.doi.org/10.1063/5.0105784 |
| spellingShingle | Liuyuan Yu Huadong Yong Computation of AC loss of HTS coils wound by coated conductors with different widths AIP Advances |
| title | Computation of AC loss of HTS coils wound by coated conductors with different widths |
| title_full | Computation of AC loss of HTS coils wound by coated conductors with different widths |
| title_fullStr | Computation of AC loss of HTS coils wound by coated conductors with different widths |
| title_full_unstemmed | Computation of AC loss of HTS coils wound by coated conductors with different widths |
| title_short | Computation of AC loss of HTS coils wound by coated conductors with different widths |
| title_sort | computation of ac loss of hts coils wound by coated conductors with different widths |
| url | http://dx.doi.org/10.1063/5.0105784 |
| work_keys_str_mv | AT liuyuanyu computationofaclossofhtscoilswoundbycoatedconductorswithdifferentwidths AT huadongyong computationofaclossofhtscoilswoundbycoatedconductorswithdifferentwidths |