Identification of wire breakage status based on the measurement and inversion of magnetic field aiming at applications to cable in conduit conductors of ITER magnets

Issue title: Selected Papers from the 15th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2011)

Article type: Research Article

Authors: Tian, Shuxia^a | Chen, Zhenmao^{a; *} | Li, Yong^a | Zuo, Yongbin^a | Wang, Xiaowei^a

Affiliations: [a] State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an, Shaanxi, China

Correspondence: [*] Corresponding author: Zhenmao Chen, State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, 28 West Xianning Road, Xi'an, 710049, Shaanxi, China. E-mail: chenzm@mail.xjtu.edu.cn

Abstract: The wire breakage identification of superconducting multistrands Cable in Conduit Conductors (CICC) is a key point to guarantee the reliability of the magnet system of the International Thermonuclear Experimental Reactor (ITER). In this paper, a Nondestructive Testing (NDT) method based on the measurement of magnetic fields surrounding CICC and the reconstruction of the current values in the superconducting cables from the measured magnetic field signals is presented. The validity and efficiency of the proposed method are demonstrated through numbers of numerical simulations and preliminary experiments.

Keywords: Wire breakage, CICC, ITER, NDT, Inverse analysis

DOI: 10.3233/JAE-2012-1449

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 39, no. 1-4, pp. 105-112, 2012