46929

Автор(ы): 

Автор(ов): 

6

Параметры публикации

Тип публикации: 

Статья в журнале/сборнике

Название: 

Study of Globus-M tokamak poloidal system and plasma position control

ISBN/ISSN: 

1063-7788

DOI: 

10.1134/S1063778817070055

Наименование источника: 

  • Physics of Atomic Nuclei

Обозначение и номер тома: 

Т. 80, № 3

Город: 

  • Москва

Издательство: 

  • Pleiades Publishing, Ltd

Год издания: 

2017

Страницы: 

1298-1306
Аннотация
In order to provide efficient performance of tokamaks with vertically elongated plasma position, control systems for limited and diverted plasma configuration are required. The accuracy, stability, speed of response, and reliability of plasma position control as well as plasma shape and current control depend on the performance of the control system. Therefore, the problem of the development of such systems is an important and actual task in modern tokamaks. In this study, the measured signals from the magnetic loops and Rogowski coils are used to reconstruct the plasma equilibrium, for which linear models in small deviations are constructed. We apply methods of the H∞-optimization theory to the synthesize control system for vertical and horizontal position of plasma capable to working with structural uncertainty of the models of the plant. These systems are applied to the plasma-physical DINA code which is configured for the tokamak Globus-M plasma. The testing of the developed systems applied to the DINA code with Heaviside step functions have revealed the complex dynamics of plasma magnetic configurations. Being close to the bifurcation point in the parameter space of unstable plasma has made it possible to detect an abrupt change in the X-point position from the top to the bottom and vice versa. Development of the methods for reconstruction of plasma magnetic configurations and experience in designing plasma control systems with feedback for tokamaks provided an opportunity to synthesize new digital controllers for plasma vertical and horizontal position stabilization. It also allowed us to test the synthesized digital controllers in the closed loop of the control system with the DINA code as a nonlinear model of plasma.

Библиографическая ссылка: 

Докука В.Н., Коренев П.С., Митришкин Ю.В., Павлова Е.А., Патров М.И., Хайрутдинов Р.Р. Study of Globus-M tokamak poloidal system and plasma position control // Physics of Atomic Nuclei. 2017. Т. 80, № 3. С. 1298-1306.

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