基于蒙特卡洛法的大风区接触网系统可靠性分析

Analysis of OCS Reliability in Strong Wind Area based on Monte Carlo Method

为分析大风区接触网系统可靠性,本文将一种应用于电力系统可靠性的分析方法—蒙特卡洛法应用到高速铁路接触网系统可靠性分析中。根据接触网特性对接触网系统进行可靠性建模,并根据甘肃酒泉风塔所测相关数据,利用两参数Weibull分布模拟出西北地区风速分布。结合某段电气化铁路接触网的特性,运用Matlab对融合了风因素的接触网可靠性进行了蒙特卡洛算法编程,并绘制了相应的可靠性曲线。结果表明:蒙特卡洛法适用于接触网可靠性研究,且在融合了风因素后接触网可靠性下降,其研究得出的可靠度更接近于实际情况。

In order to analyze the reliability of OCS in strong wind area,an analyzing method applicable for analyzing of reliability of electric power system-Monte Carlo Method is applied,in this paper,for analyzing of reliability of OCS of high-speed railway.Reliable model is established for OCS in accordance with its characteristics,and simulation of wind speed distribution of North-west region by distribution of two parameters of Weibull in accordance with the data tested in Jiuquan wind tower in Gansu province.Programming based on Monte Carlo Method is made for OCS reliability,and curves of reliability are plotted accordingly,with consideration of wind factors,by application of Matlab,with reference to the characteristics of a section of electrified railway.The results show:Monte Carlo Method is applicable for studies on OCS reliability,and the OCS reliability decreases with consideration of wind factors.The reliability obtained from the studies is closer to the actual conditions.