基于传输线方程的多根非平行传输线串扰分析
发布时间:2018-11-06 12:14
【摘要】:非平行结构的传输线在电力电子系统中普遍存在,当其上通有电压和电流信号时,会在周围传输线上产生串扰响应。采用时域传输线方程建立多根非平行传输线之间的串扰模型,结合FDTD方法,分析在脉冲集总源激励下受扰导线始端和终端负载上的串扰电压响应特性,将其结果与仿真结果对比,验证了该方法的正确性。研究结果表明,非平行结构中受扰线始端和终端负载上的串扰电压响应随着传输线离地面高度的增大而增大,随着传输线之间夹角的增大而变小,且减小的趋势逐渐减弱,从而为线缆间的串扰防护提供了参考依据。
[Abstract]:Non-parallel transmission lines are widely used in power electronic systems. When there are voltage and current signals on them, crosstalk responses will be generated on the surrounding transmission lines. The crosstalk model between multiple non-parallel transmission lines is established by using the time-domain transmission line equation, and the crosstalk voltage response characteristics on the initial and terminal loads of the perturbed conductor under the impulse lumped source excitation are analyzed in combination with the FDTD method. The correctness of the method is verified by comparing the results with the simulation results. The results show that the crosstalk voltage response on the initial and terminal loads increases with the increase of the height of the transmission line from the ground, and decreases with the increase of the angle between the transmission lines. Therefore, it provides a reference for the crosstalk protection between cables.
【作者单位】: 西南交通大学电磁场与微波技术研究所;
【基金】:国家重点基础研究发展计划基金(2013CB328904)
【分类号】:TN811
[Abstract]:Non-parallel transmission lines are widely used in power electronic systems. When there are voltage and current signals on them, crosstalk responses will be generated on the surrounding transmission lines. The crosstalk model between multiple non-parallel transmission lines is established by using the time-domain transmission line equation, and the crosstalk voltage response characteristics on the initial and terminal loads of the perturbed conductor under the impulse lumped source excitation are analyzed in combination with the FDTD method. The correctness of the method is verified by comparing the results with the simulation results. The results show that the crosstalk voltage response on the initial and terminal loads increases with the increase of the height of the transmission line from the ground, and decreases with the increase of the angle between the transmission lines. Therefore, it provides a reference for the crosstalk protection between cables.
【作者单位】: 西南交通大学电磁场与微波技术研究所;
【基金】:国家重点基础研究发展计划基金(2013CB328904)
【分类号】:TN811
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