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SISTEMA INTEGRAL DE INFORMACIÓN ACADÉMICA - PÚBLICO
Título del libro: 16th Latin American Workshop On Plasma Physics, Lawpp 2017 - Conference Proceedings Título del capítulo: Burn control of an ITER-like fusion reactor using fuzzy logic
Autores UNAM: JULIO JAVIER MARTINELL BENITO;
Autores externos: Idioma: InglésAño de publicación: 2017Palabras clave:
STABILIZATION; MODULATION
Resumen:
The fuel burn in a fusion reactor has to be kept at a nearly constant
rate in order to have a steady power exhaust. Here, we develop a control
system based on a fuzzy logic controller in order to adjust external
parameters to keep the plasma temperature and density at the design
values of a reactor of the characteristics of ITER. The control
parameters chosen are the D-T refueling rate, the auxiliary heating
power and a neutral helium beam. We use a fuzzy controller of the
Mamdani type that uses a number of membership functions appropriate to
produce a response to parameter deviations that minimizes the response
time. The inference rules are determined in a way to provide
stabilization to all perturbations of the temperature, density and alpha
particle fraction. The dynamical response of the reactor is simulated
with a zero-dimentional model that uses confinement times provided by
the ITER scaling. We show how the system is feedback stabilized for a
large range of parameters around the nominal values. The recovery time
after a perturbation from the steady state is within the order of one
second even with a noise term added to the energy confinement time.
Furthermore the results of this Fuzzy Control System are compared with
another control system based on neural networks that was previously
developed.
Entidades citadas de la UNAM:
Fuente:
ISBN: 9781538633861 Editorial: Institute of Electrical and Electronics Engineers Inc.