The JET Shape Controller (SC) uses nine distinct circuits, powering the JET poloidal field coils, to control in real time the coil currents, and the plasma shape, current and position. The control scheme presently used [1] is based on a Multiple Input Multiple Output (MIMO) controller, which is designed to decouple the inductive coupling of the different coils. Achieving such a decoupling, the SC allows the user to tune independently the time response of each circuit. As a matter of fact the intended decoupling algorithm has been incorrectly coded in the JET SC system. This paper describes the modelling and experimental activities performed to correct the code error, and to improve the performance on a subset of the controlled parameters. (C) 2015 Elsevier B.V. All rights reserved.
Improving the performance of the JET Shape Controller / Maviglia, Francesco; Ariola, M.; DE TOMMASI, Gianmaria; Lomas, P. J.; Pironti, Alfredo; Rimini, F. G.; Albanese, Raffaele; Ambrosino, Giuseppe. - In: FUSION ENGINEERING AND DESIGN. - ISSN 0920-3796. - 96-97:(2015), pp. 668-671. [10.1016/j.fusengdes.2015.01.035]
Improving the performance of the JET Shape Controller
MAVIGLIA, FRANCESCO;DE TOMMASI, GIANMARIA;PIRONTI, ALFREDO;ALBANESE, Raffaele;AMBROSINO, GIUSEPPE
2015
Abstract
The JET Shape Controller (SC) uses nine distinct circuits, powering the JET poloidal field coils, to control in real time the coil currents, and the plasma shape, current and position. The control scheme presently used [1] is based on a Multiple Input Multiple Output (MIMO) controller, which is designed to decouple the inductive coupling of the different coils. Achieving such a decoupling, the SC allows the user to tune independently the time response of each circuit. As a matter of fact the intended decoupling algorithm has been incorrectly coded in the JET SC system. This paper describes the modelling and experimental activities performed to correct the code error, and to improve the performance on a subset of the controlled parameters. (C) 2015 Elsevier B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
