Recent progress of HT-7 superconducting Tokamak PFPS control system

• Published in: Fusion engineering and design Vol. 60; no. 3; pp. 421 - 426
• Main Authors: Wang, L, Luo, J.R, Yin, F.X, Shen, B, Qin, P.J, Wang, H.Z, Fu, P
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 01.06.2002; New York, NY Elsevier Science
• Subjects: Applied sciences; Computer software; Controled nuclear fusion plants; Database systems; Discharge experiment database; Distributed parameter control systems; Energy; Energy. Thermal use of fuels; Exact sciences and technology; Feedback control; Installations for energy generation and conversion: thermal and electrical energy; Multivariable feedback; Poloidal field; Thyristor trigger; Thyristors; Tokamak; Tokamak; Discharge experiment database; Poloidal field; Thyristor trigger; Multivariable feedback; Plasma; Nuclear fusion reactor; Multivariable control; Feedback system; Control system; Thyristor; Database; Distributed control; Nuclear reactor
• ISSN: 0920-3796; 1873-7196
• DOI: 10.1016/S0920-3796(02)00042-X

The recent progress of the poloidal field control system of the HT-7 super-conducting Tokamak is presented. The distributed control system (DCS) was implemented on the poloidal field power supplies (PFPS) in 1998. The successful development of the new PFPS trigger system allowed the control cycle of the PF power supplies to reach 1–1.2 ms. The response speed of the control system was improved by ten times with reference to the former system. Secondly, based on software de-coupling of plasma equilibrium parameters, a multivariable feedback control scheme was implemented. Thirdly, the efficiency of HT-7 experiment operation was greatly improved by realizing the discharge experiment database of HT-7.