Using Adaptive Discrete-Time Gas Supply Control for Long Pulse Arc Discharge of Ion Source on NBI  

作　　者：盛鹏 胡纯栋 宋士花 刘胜 刘智民 

机构地区：[1]Institute of Plasma Physics,Chinese Academy of Sciences,Hefei 230031,China

出　　处：《Plasma Science and Technology》2008年第5期635-639,共5页等离子体科学和技术（英文版）

基　　金：National Natural Science Foundation of China(No.10575105)

摘　　要：A control model of gas supply system is introduced for ion source and an adaptive discrete-time control algorithm to regulate the hydrogen injection. A real-time feedback control system （RFCS） is designed to control the gas supply for ion source based on the control model and the discrete-time control algorithm. The experimental results have proved that RFCS could regulate the gas supply smoothly, suppress the arc＇s abrupt over-current at the end of the ion source discharging, prolong the discharge pulse and stabilize the ion concentration. With RFCS, the ion source for neutral beam injection has reached its longest pulse with a length of 4.5 seconds in a stable status.A control model of gas supply system is introduced for ion source and an adaptive discrete-time control algorithm to regulate the hydrogen injection. A real-time feedback control system （RFCS） is designed to control the gas supply for ion source based on the control model and the discrete-time control algorithm. The experimental results have proved that RFCS could regulate the gas supply smoothly, suppress the arc＇s abrupt over-current at the end of the ion source discharging, prolong the discharge pulse and stabilize the ion concentration. With RFCS, the ion source for neutral beam injection has reached its longest pulse with a length of 4.5 seconds in a stable status.

关 键 词：adaptive discrete-time control real-time feedback control ion source neutral beam injection 

分 类 号：O461[理学—电子物理学]