### Abstract

Critical current of high-temperature superconducting (HTS) coil is influenced by its own self magnetic field. Direction and density distribution of the magnetic field around the coil are fixed after the shape of the coil is decided. If the entire part of the HTS tape has homogeneous I_{c} distribution characteristic, quench would be initiated in fixed location on the coil. However, the actual HTS tape has inhomogeneous I_{c} distribution along the length. If the I_{c} distribution of the HTS tape is known, we can expect the spot within the HTS coil that has the highest probability to initiate the quench. In this paper, I_{c} distribution within the HTS coil under self-field effect is simulated by MATLAB. In the simulation procedure, I_{c} distribution of the entire part of the HTS tape is assume d to follow Gaussian-distribution by central limit theorem. The HTS coil model is divided into several segments, and the critical current of each segment is calculated based on the-generalized Kim model. Single pancake model is simulated and self-field of HTS coil is calculated by Biot-Savart’s law. As a result of simulation, quench-initiating spot in the actual HTS coil can be predicted statistically. And that statistical analysis can help detect or protect the quench of the HTS coil.

Original language | English |
---|---|

Pages (from-to) | 41-44 |

Number of pages | 4 |

Journal | Progress in Superconductivity and Cryogenics (PSAC) |

Volume | 17 |

Issue number | 2 |

DOIs | |

Publication status | Published - 2015 Jun 1 |

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### All Science Journal Classification (ASJC) codes

- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering

### Cite this

_{c}distribution of HTS tape.

*Progress in Superconductivity and Cryogenics (PSAC)*,

*17*(2), 41-44. https://doi.org/10.9714/psac.2015.17.2.041

}

_{c}distribution of HTS tape',

*Progress in Superconductivity and Cryogenics (PSAC)*, vol. 17, no. 2, pp. 41-44. https://doi.org/10.9714/psac.2015.17.2.041

**Statistical analysis for HTS coil considering inhomogeneous I _{c} distribution of HTS tape.** / Jin, Hongwoo; Lee, Jiho; Lee, Woo Seung; Ko, Tae Kuk.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Statistical analysis for HTS coil considering inhomogeneous Ic distribution of HTS tape

AU - Jin, Hongwoo

AU - Lee, Jiho

AU - Lee, Woo Seung

AU - Ko, Tae Kuk

PY - 2015/6/1

Y1 - 2015/6/1

N2 - Critical current of high-temperature superconducting (HTS) coil is influenced by its own self magnetic field. Direction and density distribution of the magnetic field around the coil are fixed after the shape of the coil is decided. If the entire part of the HTS tape has homogeneous Ic distribution characteristic, quench would be initiated in fixed location on the coil. However, the actual HTS tape has inhomogeneous Ic distribution along the length. If the Ic distribution of the HTS tape is known, we can expect the spot within the HTS coil that has the highest probability to initiate the quench. In this paper, Ic distribution within the HTS coil under self-field effect is simulated by MATLAB. In the simulation procedure, Ic distribution of the entire part of the HTS tape is assume d to follow Gaussian-distribution by central limit theorem. The HTS coil model is divided into several segments, and the critical current of each segment is calculated based on the-generalized Kim model. Single pancake model is simulated and self-field of HTS coil is calculated by Biot-Savart’s law. As a result of simulation, quench-initiating spot in the actual HTS coil can be predicted statistically. And that statistical analysis can help detect or protect the quench of the HTS coil.

AB - Critical current of high-temperature superconducting (HTS) coil is influenced by its own self magnetic field. Direction and density distribution of the magnetic field around the coil are fixed after the shape of the coil is decided. If the entire part of the HTS tape has homogeneous Ic distribution characteristic, quench would be initiated in fixed location on the coil. However, the actual HTS tape has inhomogeneous Ic distribution along the length. If the Ic distribution of the HTS tape is known, we can expect the spot within the HTS coil that has the highest probability to initiate the quench. In this paper, Ic distribution within the HTS coil under self-field effect is simulated by MATLAB. In the simulation procedure, Ic distribution of the entire part of the HTS tape is assume d to follow Gaussian-distribution by central limit theorem. The HTS coil model is divided into several segments, and the critical current of each segment is calculated based on the-generalized Kim model. Single pancake model is simulated and self-field of HTS coil is calculated by Biot-Savart’s law. As a result of simulation, quench-initiating spot in the actual HTS coil can be predicted statistically. And that statistical analysis can help detect or protect the quench of the HTS coil.

UR - http://www.scopus.com/inward/record.url?scp=84936952502&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84936952502&partnerID=8YFLogxK

U2 - 10.9714/psac.2015.17.2.041

DO - 10.9714/psac.2015.17.2.041

M3 - Article

AN - SCOPUS:84936952502

VL - 17

SP - 41

EP - 44

JO - Progress in Superconductivity and Cryogenics (PSAC)

JF - Progress in Superconductivity and Cryogenics (PSAC)

SN - 1229-3008

IS - 2

ER -

_{c}distribution of HTS tape. Progress in Superconductivity and Cryogenics (PSAC). 2015 Jun 1;17(2):41-44. https://doi.org/10.9714/psac.2015.17.2.041