Active control of the resistive wall mode with power saturation

Journal Article · Sun Jan 15 00:00:00 EST 2012 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3672512· OSTI ID:22043578

Li, Li; Yue, Liu ^[1]; Yueqiang, Liu ^[2]

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1. School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian, 116024 (China)
2. Euratom/CCFE Fusion Association, Culham Science Centre, Abingdon OX14 3DB (United Kingdom)

An analytic model of non-linear feedback stabilization of the resistive wall mode is presented. The non-linearity comes from either the current or the voltage saturation of the control coil power supply. For the so-called flux-to-current control, the current saturation of active coils always results in the loss of control. On the contrary, the flux-to-voltage control scheme tolerates certain degree of the voltage saturation. The minimal voltage limit is calculated, below which the control will be lost.

• OSTI ID: 22043578
• Journal Information: Physics of Plasmas, Vol. 19, Issue 1; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
FEEDBACK
MAGNETOHYDRODYNAMICS
PLASMA
PLASMA INSTABILITY
REVERSED-FIELD PINCH DEVICES
REVERSE-FIELD PINCH
SATURATION
STABILIZATION