### 抄録

We carried out optimal design of a Bi-2223/Ag toroidal coil for a superconducting magnetic energy storage system. The objective was to minimize the total length of Bi-2223/Ag tape at fixed conditions of operating temperature, stored energy and upper limit of the loss. The energy loss was calculated by means of the 3D finite element method (FEM) with the use of J-E expressions, which can quantitatively estimate the experimental data obtained from the tape in wide ranges of temperature (20-77 K), external magnetic field (0.02-3 T) and its applied direction (arbitrary). On the other hand, the optimal solution was obtained by a genetic algorithm (GA), which was a particularly effective optimization method when the objective function had a number of local minimum points. We performed such optimal design under various constraint conditions, and found that the optimal configuration of the coil drastically changed as its operating temperature varied.

元の言語 | 英語 |
---|---|

ページ（範囲） | 1445-1453 |

ページ数 | 9 |

ジャーナル | Superconductor Science and Technology |

巻 | 18 |

発行部数 | 11 |

DOI | |

出版物ステータス | 出版済み - 11 1 2005 |

外部発表 | Yes |

### Fingerprint

### All Science Journal Classification (ASJC) codes

- Ceramics and Composites
- Condensed Matter Physics
- Metals and Alloys
- Electrical and Electronic Engineering
- Materials Chemistry

### これを引用

*Superconductor Science and Technology*,

*18*(11), 1445-1453. https://doi.org/10.1088/0953-2048/18/11/006

**Optimal design of a Bi-2223/Ag coil for superconducting magnetic energy storage at different operating temperatures.** / Higashikawa, Kohei; Nakamura, Taketsune; Okamoto, Hiroshi.

研究成果: ジャーナルへの寄稿 › 記事

*Superconductor Science and Technology*, 巻. 18, 番号 11, pp. 1445-1453. https://doi.org/10.1088/0953-2048/18/11/006

}

TY - JOUR

T1 - Optimal design of a Bi-2223/Ag coil for superconducting magnetic energy storage at different operating temperatures

AU - Higashikawa, Kohei

AU - Nakamura, Taketsune

AU - Okamoto, Hiroshi

PY - 2005/11/1

Y1 - 2005/11/1

N2 - We carried out optimal design of a Bi-2223/Ag toroidal coil for a superconducting magnetic energy storage system. The objective was to minimize the total length of Bi-2223/Ag tape at fixed conditions of operating temperature, stored energy and upper limit of the loss. The energy loss was calculated by means of the 3D finite element method (FEM) with the use of J-E expressions, which can quantitatively estimate the experimental data obtained from the tape in wide ranges of temperature (20-77 K), external magnetic field (0.02-3 T) and its applied direction (arbitrary). On the other hand, the optimal solution was obtained by a genetic algorithm (GA), which was a particularly effective optimization method when the objective function had a number of local minimum points. We performed such optimal design under various constraint conditions, and found that the optimal configuration of the coil drastically changed as its operating temperature varied.

AB - We carried out optimal design of a Bi-2223/Ag toroidal coil for a superconducting magnetic energy storage system. The objective was to minimize the total length of Bi-2223/Ag tape at fixed conditions of operating temperature, stored energy and upper limit of the loss. The energy loss was calculated by means of the 3D finite element method (FEM) with the use of J-E expressions, which can quantitatively estimate the experimental data obtained from the tape in wide ranges of temperature (20-77 K), external magnetic field (0.02-3 T) and its applied direction (arbitrary). On the other hand, the optimal solution was obtained by a genetic algorithm (GA), which was a particularly effective optimization method when the objective function had a number of local minimum points. We performed such optimal design under various constraint conditions, and found that the optimal configuration of the coil drastically changed as its operating temperature varied.

UR - http://www.scopus.com/inward/record.url?scp=26944473977&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=26944473977&partnerID=8YFLogxK

U2 - 10.1088/0953-2048/18/11/006

DO - 10.1088/0953-2048/18/11/006

M3 - Article

VL - 18

SP - 1445

EP - 1453

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

SN - 0953-2048

IS - 11

ER -