摘要
分析并设计了分压器的参数,采用高频无感釉膜电阻制作分压器,与基于压频转换的光纤隔离技术相结合,组成了HL-2A用高压电源测量系统。同时将数字信号处理芯片用于光纤转换环节,实现压频型A/D转换,简化线路,提高数据传输速度和信号干扰能力。该高压测量系统已运用于HL-2A装置的长脉冲(5s)放电实验,结果表明:该系统不仅实现了DC 80kV高压电源的高低电位完全隔离,而且所测量电压波形真实反映了电源的输出,为反馈系统和保护系统提供了实时电压数据信号。
A measurement system for the high voltage pulse power supply on HL-2A has been developed.It adopts the voltage divider based on high-frequency inductance-free glaze film resistor along with the fiber isolation technology based on voltage-frequency conversion.Moreover,a DSP chip is used in the fiber transmission,to realize A/D conversion,simplifying the circuit,enhancing the data transmission speed and anti-jamming ability of the system.The system has been applied to long-pulse（5 s） discharge experiments on HL-2A.The experimental results show that,the system realizes the potential isolation for power supply,and the measured voltage waveforms reflect the supply output faithfully,providing real-time voltage data for the feedback and protection system of the supply.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2012年第4期780-784,共5页
High Power Laser and Particle Beams
基金
国家核能开发项目(H6600003)
关键词
脉冲高压
光纤隔离
压频转换
分压器
pulsed high voltage
fiber isolation
voltage to frequency conversion
voltage divider
