A universal model for accurate calculation of electromagnetic transients on overhead lines and underground cables
A universal model for accurate calculation of electromagnetic transients on overhead lines and underground cables
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DOI：
10.1109/61.772350
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发表时间：
1999-07
影响因子：
4.4
通讯作者：
A. Morched;B. Gustavsen;M. Tartibi
中科院分区：
文献类型：
--
作者：
A. Morched;B. Gustavsen;M. Tartibi
本文提出了一种用于电力系统电磁暂态仿真的输电线路模型。该模型可以应用于架空线路和电缆，即使在存在强频率依赖的变换矩阵和差异很大的模态时延的情况下。这是通过相域公式实现的，其中模态特性已被用于传播矩阵的近似。通过对速度接近相等的模式进行分组，并对传播矩阵和特征导纳矩阵进行列式实现，提高了计算效率。
This paper presents a transmission line model for the simulation of electromagnetic transients in power systems. The model can be applied to both overhead lines and cables, even in the presence of a strongly frequency dependent transformation matrix and widely different modal time delays. This has been achieved through a phase domain formulation where the modal characteristics have been utilized in the approximation for the propagation matrix. High computational efficiency is achieved by grouping modes with nearly equal velocities and by columnwise realization of the matrices for propagation and characteristic admittance.