An efficient time-domain method based on the waveform relaxation with transverse partitioning (WR-TP) techniques and the delay extraction passive compact circuit (DEPACT) macromodel is presented for evaluating the electromagnetic (EM) transient response of multiconductor transmission lines (MTLs) excited by an external EM field. Firstly, the equivalent distributed sources due to the tangential components of the electric field are introduced into the MTLs equations. Then, the TLs are divided into a cascaded of DEPACT subnetworks, where the telegrapher’s equations of lossless TLs are decoupled by applying the WR-TP techniques. And the relaxation sources over the lossy TLs are updated by using the waveform scaling algorithm, which can completely avoid performing the numerical convolution. Finally, the equivalent circuit is established and the transient responses induced on the lines can be obtained by using the circuit simulation software PSCAD.

提出了一种有效的时域方法，该方法基于横向弛豫的波形弛豫（WR-TP）技术和延迟提取无源紧凑电路（DEPACT）宏模型，用于评估激励的多导体传输线（MTL）的电磁（EM）瞬态响应通过外部EM字段。首先，将由于电场的切向分量而产生的等效分布源引入MTL方程中。然后，将TL分为级联的DEPACT子网，在其中通过应用WR-TP技术将电报商的无损TL方程解耦。并且通过使用波形缩放算法来更新有损TL上的松弛源，可以完全避免进行数值卷积。最后，