一种多根并行直流电缆的电老化试验仿真计算方法

Electric aging test simulation computing method for multiple parallel direct-current cables

Abstract

本发明公开了一种多根并行直流电缆的电老化试验仿真计算方法,所述方法包括以下步骤:S100、根据实际的电老化实验平台参数,建立电老化仿真电路模型:S200、设置所述仿真电路模型的部分参数;S300、利用ATP-EMTP软件对所述仿真电路模型进行仿真计算,得出防止多根并行直流电缆中一个支路击穿引起其他支路击穿的方案,所述方案为在击穿支路上串联一个电阻和一个电感。本发明有效的解决了对于300h、600h和1000h的电缆直流电老化试验,老化发生的分散性比较大,需要对多个试样做电老化试验试验周期比较长的问题。
The invention discloses an electric aging test simulation computing method for multiple parallel direct-current cables. The method comprises the following steps: S100, according to actual electric aging test platform data, establishing an electric aging simulation circuit model; S200, setting partial parameters of the simulation circuit model; and S300, performing simulation computing on the simulation circuit by utilizing ATP-EMTP software. A scheme for preventing breakdown of other branches due to breakdown of one branch in the multiple parallel direct-current cables is obtained, and the scheme is that a resistor and an inductor are connected in series with a breakdown branch. The method effectively solves the problems that for direct-current electric aging tests of 30h0, 600h and 1,000h cables, the dispersity caused by aging is relatively high, a plurality of samples need to be subjected to electric aging tests, and the test cycle is relatively long.

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