H桥式大电流快控电源设计  

Design of the H-bridge high current fast control power supply

作　　者：王英翘[1] 姚列英[1] 宣伟民[1] 徐伟东[1] 

机构地区：[1]核工业西南物理研究院,成都610041

出　　处：《核聚变与等离子体物理》2008年第4期328-332,共5页Nuclear Fusion and Plasma Physics

摘　　要：介绍了HL-2A升级改造装置用于控制等离子体垂直位移的H桥式大电流快控电源的设计方案,内容包括快控电源方案与工作模式的仿真,开关元件的选择和改善IGBT静态均流的措施。利用实验平台,通过改变并联元件的回路参数将IGBT并联电流不均衡率由16.5%降低到6.8%。计算了IGBT模块工作时可能产生的最大损耗,并给出满足模块温度要求的散热方案。The preliminary scheme of the H-bridge power supply of the fast radial field of the new machine （the modified device of HL-2A） is introduced, which includes the simulation of operation mode of the fast power supply, the selection of switching components and the way of improving the static current sharing for paralleled IGBTs. The experiment results show that the current sharing can be improved by adjusting the layout and the parameters of circuit, and the mismatch rate of paralleled IGBTs can be reduced from 16.5% to 6.8%. In addition, the maximum power loss is calculated and the cooling method of IGBT is given.

关 键 词：H桥 快控电源 IGBT并联 

分 类 号：TL623[核科学技术—核技术及应用]