1.2MV大功率直流高压电源研制  

Development of 1.2MV high power DC generator

作　　者：何小海[1] 林理彬[1] 张慧君[2] 詹家学[2] 李琦[2] 赵建华[2] 贾朝伟[2] 

机构地区：[1]四川大学物理科学与技术学院,成都610064 [2]中国工程物理研究院环保工程研究中心,四川绵阳621900

出　　处：《强激光与粒子束》2007年第5期835-840,共6页High Power Laser and Particle Beams

摘　　要：采用等边三角形结构的铁芯,次级线圈分成4 0级,分别进行三相全波整流,每级输出直流30 kV,串联后获得1.2 MV/A的直流高电压大功率输出。电源的能量转换效率大于95%,漏抗高达21.7%。采用无滤波电容结构,次级线圈星型/三角型接法交替使用,纹波系数小于±4%。整个电源密封在压力钢筒中,充0.8 MPa高纯度SF6气体作为绝缘介质,最大工作场强小于130 kV/cm。设计了专门的SF6气体冷却系统,气体温度控制在60℃以内,高电压由充气同轴传输线输出。在小负载条件下,电源各项指标满足技术要求,已经安装在1.2 MW,1.2 MeV大功率直流电子加速器上进行整机联调。Equilateral-triangle configuration iron core with secondary coil divided into 40 stages, each stage is three-phase full-wave rectified and outputs 30 kV in the design of high power high voltage DC generator, which in series output 1.2 MV/A with energy efficiency of 95% and leakage impedance of 21.7%. Configuration of none-filter capacitance and starlike/trangular connection mode were applied with ripple factor less than ±4 %. The whole generator was encapsulated in a steel cylinder filled with highly purified SF6 gas as insulation medium at pressure 0. 8 MPa and maximum electric field less than 130 kV/cm, with special cooling system and operating temperature of SF6 controlled less than 60 ℃. Gas-filled coaxial transmission line structure was adopted for high voltage output, All the technical targets have been achieved at a relatively low load. Presently, the high voltage DC generator has been equipped on the 1.2 MW high power electron accelerator for on-line testing.

关 键 词：高电压 大功率 电子加速器 高阻抗 气体绝缘 

分 类 号：TM832[电气工程—高电压与绝缘技术]