海洋工程中压电力系统短路电流计算

Calculation of short-circuit current in medium voltage system of offshore engineering

目前,国内外尚未制定有关“海洋工程电力系统短路电流计算方法”的标准。由于海洋工程电力系统具有发电及用电较集中,而且容量比一般船舶电力系统大,又较陆上电力系统少的特点。因而在计算短路电流的方法上,以及考虑与短路电流有关的因素,都有别于船舶电力系统和陆上电力系统。它相当于由大容量交流同步发电机短距离供电的电力系统。由同步发电机供电的电力系统短路是一个很复杂的过渡过程。目前。

Based on the existing conditions of offshore engineering power systems,this paper involves the calculation of short-circuit current of the power system, including the methods,steps and conversions,Mention has been made to the “per unit calculation” and its merits and disadvantages and usefulness for the calculation of the short-circuit current.