Title :
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
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;
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
DOI :
10.1109/BCGIn.2011.179
