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Multimode wave theory application to the analysis of very fast transients in lossless systems

机译:多模波理论在无损系统中快速瞬态分析中的应用

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摘要

This paper presents a new method of analyzing very fast transients in power systems by including the higher modes in the wave propagation analysis which, if ignored, can lead to erroneous results. A characteristic matrix is introduced to characterize the mode reflections and couplings to replace the scalar reflection and transmission coefficients used in the conventional traveling wave method. A sample transient calculation is carried out for a lossless coaxial cable terminated with a circular waveguide which shows the necessity to consider higher modes in very fast transient studies. The proposed approach also applies to more complicated structures such as gas insulated substations.
机译:本文通过在波传播分析中包含更高的模式,提出了一种分析电力系统中非常快速的瞬态的新方法,如果忽略更高的模式,则可能导致错误的结果。引入特征矩阵来表征模式反射和耦合,以取代常规行波方法中使用的标量反射和透射系数。对端接有圆形波导的无损同轴电缆进行了示例瞬态计算,这表明有必要在非常快速的瞬态研究中考虑更高的模式。提议的方法还适用于更复杂的结构,例如气体绝缘变电站。

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