基于CompactRIO的中性束高压平台电源数据采集系统设计与应用

Design and application of power data acquisition system based on CompactRIO for the neutral beam high voltage platform

摘要:

为解决高电压、大电流和强磁场对中性束注入系统高压平台电源数据采集系统的影响问题，通过在CompactRIO （简称cRIO）控制器中运行NI Linux Real-Time实时系统，结合LABVEIW图形化开发工具，采用FPGA用户I/O采集模式与节点I/O采集模式混合编程，设计了1套全新的基于cRIO平台的数据采集系统。该套采集系统实现了中性束注入系统的第2条束线高压平台灯丝电源、弧流电源等信号在不同采集频率的混合测量需求。通过在HL-2A放电实验中测试表明，采集系统稳定可靠，抗干扰性能强，上位机界面操作灵活，维护方便。

Abstract:

In order to solve the problem that high voltage, high current and strong magnetic field effect to the power data acquisition system for the high voltage platform of the neutral beam injection, the new data acquisition system is designed based on the cRIO platform through the NI Linux Real-Time system runs in the CompactRIO controller, the LABVEIW graphical development tool, the mixed acquisition mode of the user I/O and the node I/O programming in FPGA. The data acquisition system realizes the demand for the mixed measurement of the signal of the filament power and the arc current with different acquisition frequencies in the high voltage power supplies of the second line of the neutral beam injection system. The test in HL-2A discharge experiment shows that the acquisition system is stable and reliable, anti-interference performance is strong, the upper computer interface operation is flexible, and maintenance is convenient.