Resistive wall feedback stabilization
نویسندگان
چکیده
منابع مشابه
Resistive wall mode feedback stabilization in burning plasma experiments
We use a simple model [Garofalo, Jensen, and Strait, to be published in Phys. Plasmas] to analyze the systems for feedback stabilization of the resistive wall mode (RWM) in proposed burning plasma experiments. In ITER, the presence of several conducting structures close to the control coils, but far from the plasma, leads to a slow feedback response time compared to the time scale of the RWM gr...
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This paper describes the modeling of the feedback control and rotational stabilization of the resistive wall mode (RWM) in tokamaks. A normal mode theory for the feedback stabilization of the RWM has been developed for an ideal plasma with no toroidal rotation. This theory has been numerically implemented for general tokamak geometry and applied to the DIII-D tokamak. It is found that feedback ...
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T.H. Jensen Feedback stabilization of the resistive wall mode is usually accomplished by using linear amplifiers. In this paper a study is made of a possibility of controlling resistive wall modes using switches instead of linear amplifiers, i.e., using bang-bang control. The motivation is that bangbang control systems may be cheaper than conventional feedback systems. A distinct disadvantage o...
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DIII-D experiments show that the resistive wall mode (RWM) can remain stable in high β scenarios despite a low net torque from nearly balanced neutral beam injection (NBI) heating. The minimization of magnetic field asymmetries is essential for operation at the resulting low plasma rotation of less than 20 krad/s (measured with charge exchange recombination spectroscopy using C VI emission) cor...
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