复合式罗氏线圈在RSD开关测量中的应用

Measurement of RSD Switch Current Using Composite Rogowski Coil

分析了自积分及外积分罗氏线圈典型方程及条件,提出一种自积分与外积分相结合的复合式罗氏线圈设计方法,给出了电路模型及参数。在微秒级反向导通双晶复合管(Reversely Switched Dynistor,简称RSD)脉冲功率系统中进行实验,结果证明,复合式罗氏线圈很好地再现了RSD电流波形,纠正了传统自积分或外积分罗氏线圈的缺陷,在提高测量精度的同时,扩宽了传统罗氏线圈的应用范围。

The typical equations of self-integrating and out-integrating Rogowski coil are analyzed.The working conditions of them are presented.On the basis of analyzing about the equations and working conditions of Rogowski coil,the composite Rogowski coil test methods is provided integrating self-integrating circuits and out-integrating circuits.The circuit model and parameters are given.The experiments of the new composite Rogowski coil in us RSD pulse power system show that the new composite Rogowski coil can measure the transient current of RSD accurately. Which correct the defects of the traditional serf-integrating test or out-integrating test.So the new composite Rogowski coil improves the measure accuracy, meanwhile widens the applications of the Rogowski coil too.