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Study of JT-60SA Operation Scenario using a Plasma Equilibrium Control Simulator

Yoshiaki MIYATA, Takahiro SUZUKI, Shunsuke IDE, Hajime URANO and Takaaki FUJITA

Japan Atomic Energy Agency, 801-1 Mukoyama, Naka, Ibaraki 311-0193, Japan

(Received 7 December 2012 / Accepted 19 May 2013 / Published 15 August 2013)

Abstract

A plasma equilibrium control simulator has been developed to simulate the control of plasma position and shape as well as plasma current I_P. The simulator consists of an equilibrium calculation component and a controller component. The plasma position, shape, and I_P are obtained as a result of an equilibrium calculation under the specified poloidal field coil current. The control simulator enables simulation of the control of the position, shape, and I_P using the isoflux technique, and it optimizes the control logic of the coil current in JT-60SA. The plasma equilibrium control is simulated during I_P ramp-up. The controllability of the last closed flux surface is also validated during I_P flat-top.

Copyright (c) 2013 The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

JT-60SA, plasma equilibrium, control logic, poloidal field coil, isoflux

DOI: 10.1585/pfr.8.2405109

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This paper may be cited as follows:

Yoshiaki MIYATA, Takahiro SUZUKI, Shunsuke IDE, Hajime URANO and Takaaki FUJITA, Plasma Fusion Res. 8, 2405109 (2013).