Title :
Current control of magnetically coupled superconducting coils for nuclear fusion experimental system using H∞ control scheme
Author :
Ise, Toshifumi ; Yoneda, Hideyuki ; Murakami, Yoshishige ; Tanahashi, Shugo ; Yamada, Shu-ichi ; Chik, H.
Author_Institution :
Dept. of Electr. Eng., Osaka Univ., Japan
Abstract :
Precise current control within 0.01% accuracy of superconducting coils composing the Large Helical Device (LHD), which is a nuclear fusion experimental system under construction in Japan, is needed under the condition with strong mutual coupling between coils and some disturbances such as plasma, vacuum vessel etc. Application of the H∞ control scheme with a two-degree-of-freedom controller was studied. Good control results were obtained from the experimental model system with two superconducting coils. Simulation results with the LHD´s circuit parameters show the possibility of successful control results
Keywords :
H∞ control; controllers; electric current control; fusion reactor design; fusion reactors; stellarators; superconducting coils; H∞ control; Japan; Large Helical Device; current control; magnetically coupled superconducting coils; nuclear fusion experimental system; plasma disturbances; strong mutual coupling; two-degree-of-freedom controller; vacuum vessel; Circuit simulation; Current control; Fusion reactors; Mutual coupling; Plasma applications; Plasma devices; Plasma simulation; Superconducting coils; Superconducting magnets; Vacuum systems;
Conference_Titel :
Power Electronics Specialists Conference, 1996. PESC '96 Record., 27th Annual IEEE
Conference_Location :
Baveno
Print_ISBN :
0-7803-3500-7
DOI :
10.1109/PESC.1996.548719
