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Safety Factor Profile Control in a Tokamak || by Federico Bribiesca Argomedo, Emmanuel Witrant, Christophe Prieur (auth.) is a nonfiction available to read on EtoBox.

What is Safety Factor Profile Control in a Tokamak || about?

Control of the Safety Factor Profile in a Tokamak uses Lyapunov techniques to address a challenging problem for which even the simplest physically relevant models are represented by nonlinear, time-dependent, partial differential equations (PDEs). This is because of the spatiotemporal dynamics of transport phenomena (magnetic flux, heat, densities, etc.) in the anisotropic plasma medium. Robustness considerations are ubiquitous in the analysis and control design since direct measurements on the magnetic flux are impossible (its estimation relies on virtual sensors) and large uncertainties remain in the coupling between the plasma particles and the radio-frequency waves (distributed inputs). The Brief begins with a presentation of the reference dynamical model and continues by developing a Lyapunov function for the discretized system (in a polytopic linear-parameter-varying formulation). The limitations of this finite-dimensional approach motivate new developments in the infinite-dimensional framework. The text then tackles the construction of an input-to-state-stability Lyapunov function for the infinite-dimensional system that handles the medium anisotropy and provides a common b

Who reads Safety Factor Profile Control in a Tokamak ||?

Author

Federico Bribiesca Argomedo, Emmanuel Witrant, Christophe Prieur (auth.)

Publisher

Springer International Publishing : Imprint : Springer

Published

2014

Language

EN

ISBN

9783319019574

Category

nonfiction

Subjects

Science, Engineering, Physics