DocumentCode :
1946984
Title :
Advanced concepts for fusion power supplies
Author :
Yao, X. ; Huang, Y. ; Guo, F. ; Wang, J.
Author_Institution :
Ohio State Univ., Columbus, OH, USA
fYear :
2011
fDate :
26-30 June 2011
Firstpage :
1
Lastpage :
6
Abstract :
Nuclear fusion reactors, such as the Tokamak in the International Thermonuclear Experimental Reactor (ITER) project, usually involve extremely sophisticated high voltage power supply systems, which provide exciting research challenges. In the short term, the major challenges in power supplies of the ITER and other fusion reactors include 1) fast current control of Vertical Stabilization (VS) coils; and 2) dynamic compensation of reactive power and harmonics. In the long term, the power supply systems in fusion reactors provide opportunities for optimizations at both component and system levels. In this paper, modular multilevel converters (M2LC) are adopted to tackle the short term challenges. Circuit structures, PWM methods, and fault tolerant operation strategies are presented. The configuration and control strategies of M2LC in VS coils are fully studied and verified with real time simulations. Compared with existing circuit solutions in fusion reactors, the M2LC based circuits will have better dynamic response, higher reliability, smaller footprint, and reduced weight. As an outlook to the long term developments of the fusion power supplies, comprehensive real time simulations are also discussed at the end of the paper.
Keywords :
Tokamak devices; fusion reactor materials; fusion reactor operation; plasma toroidal confinement; power supply circuits; ITER; International Thermonuclear Experimental Reactor; PWM method; circuit structure; configuration strategy; control strategy; fault tolerant operation strategies; fusion power supplies; modular multilevel converters; nuclear fusion reactors; power supply systems; tokamak; vertical stabilization coils; Pulse width modulation; Robustness; Switches; M2LC; control strategy; power supply; real time simulation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Fusion Engineering (SOFE), 2011 IEEE/NPSS 24th Symposium on
Conference_Location :
Chicago, IL
ISSN :
1078-8891
Print_ISBN :
978-1-4577-0669-1
Electronic_ISBN :
1078-8891
Type :
conf
DOI :
10.1109/SOFE.2011.6052200
Filename :
6052200
Link To Document :
بازگشت