基于电压波形的脉冲放电回路参数识别

电爆炸箔起爆系统中，脉冲放电回路的电学参数LCR，对于放电电流参数以及爆炸桥箔设计参数都具有决定作用。随着电爆炸箔起爆系统向微型化发展，通过Rogowski线圈等方法测量电流，识别回路电学参数的方法已不再适用。根据脉冲放电回路等效电路及其微分方程，推算出电容电压波形与电路参数的关系，利用数值算法和Matlab工具，求得回路参数L、R的最小二乘解，并通过拟合电压波形与实测电压波形对比，证明所提出算法的有效性。

Parameter Identification of Discharge Circuit Based on the Voltage Waveform

LCR, the electrical parameters of discharge circuit in the exploding foil initia- tion system, has a decisive role in the electric current and the design of exploding foil. With the development of the micromation of EFIS, it＇s not suitable to measure the current by Ro- gowski coil. According to the equivalent circuit of discharge circuit and its differential equation, the article deduces the relation between voltage waveform and electrical parameters, acquires the least squares solution of L and R by Matlab and numerical algorithm. The effectiveness has been proved by comparing fitted voltage waveform with actual waveform.