基于FBG的脉冲功率晶闸管温度测试研究

Study of pulsed power thyristor temperature measurement based on FBG

为了在脉冲功率源放电瞬间测得晶闸管内部管芯温度,提出将FBG粘贴在晶闸管内部管芯上进行直接测试。采用有限元方法进行热分析计算,得到了功率晶闸管温度的分布云图。设计温度测试系统,介绍了FBG的解调原理。进行了脉冲功率源放电瞬间晶闸管内部管芯的温度测试实验,并将仿真和实验结果进行对比。

In order to measure the temperature of the internal tube of the thyristor at the moment of the pulse power source discharge, the paper proposes to paste the FBG on the internal die of the thyristor for direct test- ing. The finite element method is used to calculate the temperature of the power thyristor. The paper designs the temperature test system and introduces the FBG demodulation principle. It carries out the temperature test experiment of the internal die of the instantaneous thyristor with pulse power source discharge and compares the simulation and experimental results.