4 MW upgrade to DIII-D FWCD system: system commissioning and initial operation

Author

Cary, W.P. ; Baity, F.W. ; Barber, G.C. ; Callis, R.W. ; deGrassie, J.S. ; Ferguson, S.W. ; Harris, T.E. ; O´Neill, R.C. ; Pinske, R.I.

Author_Institution

Gen. Atomics, San Diego, CA, USA

Volume

1

fYear

1995

fDate

30 Sep-5 Oct 1995

Firstpage

834

Abstract

The initial installation of the 4 MW fast wave current drive (FWCD) upgrade started in 1992 with the purchase of two ABB/Thomcast AG RF power amplifiers. These amplifiers cover the frequency range 30 MHz to 120 MHz. A maximum output power of over 2 MW between 30 MHz and 80 MHz and 1 MW at 120 MHz were the specification requirements. The system as installed is comprised of the two mentioned RF amplifiers, coaxial transmission and matching components, RF phase and amplitude monitoring, and a SUN SparcStation 10 control system. Due to various reasons almost every major component in the system required redesign and engineering in order to meet the system requirements. The failures, probable cause and the final redesigns will be discussed as well as some thoughts on how better to specify system requirements for future systems

Keywords

fusion reactor design; fusion reactor operation; fusion reactors; radiofrequency amplifiers; 1 MW; 30 to 120 MHz; 4 MW; ABB/Thomcast AG RF power amplifiers; DIII-D FWCD system upgrade; RF amplitude monitoring; RF phase monitoring; SUN SparcStation 10 control system; coaxial matching components; coaxial transmission components; failures; fast wave current drive upgrade; final redesigns; fusion reactors; initial installation; initial operation; specification requirements; system commissioning; system requirements; Coaxial components; Condition monitoring; Control systems; Laboratories; Power amplifiers; Power generation; Production facilities; Radio frequency; Radiofrequency amplifiers; Sun;

fLanguage

English

Publisher

ieee

Conference_Titel

Fusion Engineering, 1995. SOFE '95. Seeking a New Energy Era., 16th IEEE/NPSS Symposium

Conference_Location

Champaign, IL

Print_ISBN

0-7803-2969-4

Type

conf

DOI

10.1109/FUSION.1995.535962

Filename

535962