The Eddy Currents Calculation Based on the Least Square Algorithm for EAST

Author

Erbing, Xue ; Jiarong, Luo ; Shuangbao, Shu

Author_Institution

Dept. of Phys., Donghua Univ., Shanghai, China

fYear

2011

fDate

29-31 July 2011

Firstpage

343

Lastpage

346

Abstract

A method is developed to evaluate the current induced during startup in the vacuum vessel of EAST (Experimental Advanced Super conducting Tokamak) based on the least square algorithm. As the eddy currents distribution is axisymmetric and uneven, it is usually modeled using a thin shell approximation for the vacuum vessel. This problem is reduced to a circuit model by dividing the vacuum vessel into 40 units. Solving the circuit equation by means of the least square method, the eddy currents distribution can be got. Calculation results of the eddy currents distribution and measured results in EAST agree well, which confirms the correctness of the method and the models.

Keywords

Tokamak devices; eddy currents; least squares approximations; plasma simulation; plasma toroidal confinement; EAST; circuit equation; circuit model; eddy current calculation; eddy current distribution; experimental advanced superconducting tokamak; least square algorithm; least square method; thin shell approximation; vacuum vessel; Coils; Eddy currents; Inductance; Integrated circuit modeling; Mathematical model; Tokamaks; circuit equation; eddy currents; least square algorithm; vacuum vessel;

fLanguage

English

Publisher

ieee

Conference_Titel

Business Computing and Global Informatization (BCGIN), 2011 International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4577-0788-9

Electronic_ISBN

978-0-7695-4464-9

Type

conf

DOI

10.1109/BCGIn.2011.179

Filename

6003894