宁波电网典型事故处理分析

电网技术的快速发展对事故的准确快速地判断和处理提出了更高要求,为帮助调度员正确快速地处理电网事故,从主变故障、母线故障、线路故障3个方面出发,以宁波电网典型事故为例开展了典型事故处理方案的分析,其中,主变故障又分为两台主变运行和3台主变运行,母线故障又分为220 kV变电站的220 kV双母线、110 kV双母线、35 kV分段母线及110 kV变电站的110 kV母线故障4种情况,线路故障又分为造成失电和未造成失电两种情况;在对几个方面进行了深入的分析和探讨的基础上得到了相应的处理方案。研究结果表明,所提出的方法是根据变电站不同的运行方式及事故后的现象来分析并得到的事故处理方案,可对日常的电网调度提供参考。

Analysis of typical accidents for Ningbo power grid

The rapid extension of power grid technology requires fast and accurate processing of accident. In order to help the power dispatchers dealing with the incidents correctly and quickly, an analysis on the resolutions of the typical accidents of Ningbo power grid from transformer fault, bus fault and line fault was presented. The failure of the main transformer was divided into two main transformer operation and three main transformer. Bus fault was divided into four cases of the 220 kV substation of 220 kV double bus, double bus 110 kV, the 35 kV segmentation bus and 110 kV substation 110 kV bus fault. Line fault was divided into two cases of causing loss of power and do not causing loss of power. The results indicate that a method is described to solve the incidents from different operation modes of the substations and phenomenon after the accidents. It also provides a reference to the dispatching work of power grid.