Digital Control System for the TCV Tokamak

Author

Duval, B.P. ; Moret, J. -M ; Rodrigues, A.P. ; Pereira, L.A. ; Varandas, C.A.F.

Author_Institution

Assoc. Euratom, Lausanne

Volume

53

Issue

4

fYear

2006

Firstpage

2179

Lastpage

2186

Abstract

This paper presents the hardware and software approach to replacing the current analogue linear feedback system on the TCV Tokamak with a DSP based system to allow for non-linear control. After preliminary combination, over 120 control signals are reduced to 32 parameters which enter an array of 32 DSP processors each of which is passed the complete parameter set. Apart from data transfer and storage, each DSP will run its separate control algorithm with a repetition rate up to 20 kHz. A separate DSP board is dedicated to the plasma vertical control which requires a 200 kHz feedback rate. This paper presents the hardware and the software that is being designed to put this control block in the hands of non DSP-expert physics users

Keywords

Tokamak devices; digital control; feedback; nuclear engineering computing; physical instrumentation control; plasma density; real-time systems; signal processing; 20 kHz; 200 kHz; DSP based system; RT block programming; TCV Tokamak; control algorithm; control signals; current analogue linear feedback system; data storage; data transfer; digital control system; hardware approach; nonexpert user interface; nonlinear control; plasma density; plasma vertical control; real time digital tokamak control; software approach; Control systems; Digital control; Digital signal processing; Hardware; Linear feedback control systems; Nonlinear control systems; Physics; Plasmas; Signal processing; Tokamaks; Digital signal processor (DSP); RT block programming; multi-channel; non-expert user interface; non-linear; real time digital tokamak control;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2006.876048

Filename

1684084