Modelling of plasma start-up in ITER

Author

Pillsbury, R.D., Jr. ; Schultz, J.H.

Author_Institution

Plasma Fusion Center, MIT, Cambridge, MA, USA

Volume

28

Issue

2

fYear

1992

fDate

3/1/1992 12:00:00 AM

Firstpage

1462

Lastpage

1465

Abstract

A general eigenexpansion/least squares fit algorithm is described which can be used to determine the PF coil voltage waveforms required to break down, initiate, and ramp a plasma current in a tokamak. The technique is applied to ITER (International Thermonuclear Experimental Reactor). The technique includes the effects of passive structure eddy currents. In addition, the eigenexpansion technique does not require a time step size consistent with any numerical stability limits. The constant voltages during each time segment calculated on the basis of the procedure described produce the desired loop voltage and field quality during the three phases of start-up

Keywords

Tokamak devices; coils; fusion reactor theory and design; plasma simulation; plasma toroidal confinement; plasma transport processes; ITER; International Thermonuclear Experimental Reactor; PF coil voltage waveforms; eigenexpansion/least squares fit algorithm; field quality; loop voltage; passive structure eddy currents; plasma current; plasma start-up; tokamak; Circuits; Coils; Differential equations; Eddy currents; Magnetic fields; Mesh networks; Plasma stability; Shape; Tokamaks; Voltage;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.123971

Filename

123971