DocumentCode :
888611
Title :
New Developments in the Computer Complex System for the JFT-2M Tokamak
Author :
Oyabu, Isao ; Yasuno, Tohru ; Ikeda, Kazuo ; Adachi, Kazuo ; Fukuchi, Yoichi ; Matsuo, Kazuma ; Kiyohara, Toyohiko ; Komoto, Yasuo ; Takada, Susumu ; Matsuda, Toshiaki ; Mori, Masahiro ; Matoba, Tohru ; Kawakami, Tomohide ; Shoji, Teruaki ; Kashiwa, Yoshi
Author_Institution :
Mitsubishi Electric Corporation 2-2-3, Marunouchi Chiyoda-ku Tokyo Japan
Volume :
34
Issue :
6
fYear :
1987
Firstpage :
1843
Lastpage :
1851
Abstract :
The JFT-2M computer complex system of the Japan Atomic Energy Research Institute (JAERI) consists of a data acquisition system and a plasma control system. The data acquisition system is composed of a CAMAC serial highway, a front-end minicomputer, a super-minicomputer and their peripherals. The system constitutes a definite hierarchical structure. This provides for easy expansion and maintenance as well as for improved RAS (reliability, availability and serviceability) functions and man-machine interface capabilities. The system permits unified control and high quality analysis of experimental data from the JFT-2M tokamak, processing 1.2 megabytes of data in less than 3 minutes. The plasma control system is made up of a pre-programmed minicomputer for current form pattern generation, an analog computer for high-speed plasma control, a local data logger, and thyristor power supplies. This system controls poloidal coil current by real-time feedback method. With a learning control function added to it, the system can effectively correct steady-state deviations.
Keywords :
Availability; CAMAC; Control systems; Data acquisition; Maintenance; Microcomputers; Plasma materials processing; Road transportation; Tokamaks; User interfaces;
fLanguage :
English
Journal_Title :
Nuclear Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9499
Type :
jour
DOI :
10.1109/TNS.1987.4334826
Filename :
4334826
Link To Document :
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