Circuit modeling and analysis of kA level pulse current injection probe
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摘要: 为满足kA级脉冲电流注入应用需求，设计了一种基于非晶磁芯的电流注入环，其初级线圈采用线缆直接引出的方式，有效解决了传统注入环N型电缆接头耐压不足的问题。之后根据注入环结构建立了其电路模型，并应用粒子群优化算法确定了模型参数值。频域和时域的验证实验表明，仿真结果和实验结果具有较好的一致性，验证了该电路模型的可靠性和正确性。对注入环的实际应用场景进行了仿真分析，结果表明该电流注入环可满足实际应用中kA级脉冲电流注入的需求。Abstract: To meet the application requirement of kA level pulse current injection, a kind of current injection probe based on amorphous magnetic core is designed. Then the circuit model is established based on the injection probe structure, and the model parameter values, frequency domain and time domain are verified by the particle swarm optimization algorithm. Finally, the performance difference between the kA level injection probe and the traditional injection probe (FCC-120-6A) is analyzed.
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Key words:
- pulsed current injection /
- kA level /
- amorphous core /
- current injection probe /
- inductive coupling
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图 5 电流注入环输入阻抗的实验与仿真结果对比
Figure 5. Input impedance comparison of current injection probe between test and simulation
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