中文摘要：

中性束注入（NBI）加热被国际聚变界公认为最有效的加热手段,其离子源源头电源控制系统的研制是中性束注入器的关键技术之一。通过研究高电压、高磁场环境对控制系统的影响,综合系统灵活性、易维护性、稳定性等诸方面因素设计了离子源源头电源控制系统,并开发了上位机监控程序、PLC程序和相关的硬件接口电路以及现场模糊控制系统。离子源源头电源控制系统为用户提供了良好的人机操作界面,经在测试平台的离子源起弧实验证明,有效地提高了NBI离子源放电实验的效率,为今后的NBI束线装置工程设计和研制奠定了基础。

英文摘要：

A novel type of power supply automatic control unit of the plasma generator,dedicated to neutral beam injector（NBI） of TOKAMAK,has been successfully developed.The influence of the working environment of TOKAMA,such as the high electric and magnetic fields,strong radiation exposure,on the electronic devices of the power supply control unit was systematically studied.Moreover,the requirements,including the flexibility,ease of maintenance,stability of the control unit,were fully considered in the design.The original work includes the program design for the host computer monitoring and the programmable logic controller（PLC）,and the design of the electronic circuits.In addition,the control unit provides an excellent human-computer interface.Tested in the platform of ion source,the control unit significantly improved the efficiency of the plasma discharge.It may also be of technological interest in future design of the neutral beam line.