This paper evaluates the applicability of the extended modal-domain (EMD) model in the calculation of lightning-induced voltages on parallel and double-circuit distribution lines. The influence of a real and constant transformation matrix and of the fitting technique required in the model on the induced-voltage waveforms is also investigated. It is shown that the EMD model presents good accuracy in most of the tested configurations. Also, in most cases the influence of the frequency selected for the calculation of the transformation matrix required in the EMD model is minimal. On the other hand, the requirement of using strictly real poles and residues and the use of the built-in fitting tool available in the Alternative Transients Program (ATP) have both a detrimental influence on the accuracy of the EMD model, at least in the investigated cases.

本文评估了扩展模态域（EMD）模型在并行和双回路配电线路中雷电感应电压的计算中的适用性。还研究了实常数变换矩阵以及模型中所需的拟合技术对感应电压波形的影响。结果表明，EMD模型在大多数测试配置中均具有良好的准确性。同样，在大多数情况下，EMD模型所需的用于计算变换矩阵的频率选择的影响很小。另一方面，使用严格实数极点和残差的要求以及使用替代瞬态程序（ATP）中提供的内置拟合工具，至少对EMD模型的准确性都有不利影响。调查的案件。