保测合智纵向集成的智能变电站过程网故障诊断与定位方法

Fault Diagnosis and Location Method of Process Network of Intelligent Substation with Vertical Integration

在城市变电站小型化的要求下,保测合智纵向集成的智能变电站成为新趋势,而过程网是智能变电站实时信息的交互中心,准确快速地诊断与定位过程网故障能及时排除二次系统隐患,保障变电站的安全可靠运行。为此,以某110kV智能变电站为对象,针对保测合智纵向集成的智能变电站过程网的故障诊断与定位方法开展研究,根据信源/信宿矩阵、端口物理/逻辑联接矩阵,构建保测合智纵向集成的智能变电站IED的端口报文信息传输链条模型;并基于此,针对不同类型的过程网络故障类型分析了基于SV或GOOSE报文异常告警信息的过程网络故障特征,从而形成过程网络的异常故障类型辨识与故障定位判据,最终提出了一种保测合智纵向集成的智能变电站过程网的故障诊断与定位方法,为保测合智纵向集成的智能变电站过程网实时信息传输链条模型的构建提供了方法。

Under the requirement of miniaturization of urban substations,the intelligent substation with vertical integration of protection,measurement,merge unit and intelligence unit has become a new trend.The process network is the interactive center of real-time information of the intelligent substation.The accurate and rapid diagnosis and location of process network failure can timely identify the hidden dangers of the secondary system,and ensure the safe and reliable operation of the substation.Therefore,this paper took a 110 kV intelligent substation with vertical integration as the research object and analyzed the fault diagnosis and location of process network.The port information model of the intelligent substation IED based on vertical integration according to the source/sink matrix and the port physical/logical connection matrix was constructed.Based on this,for different types of process network failure,the fault characteristics of process network were analyzed,and the criteria for identification and location were formed.Then a fault diagnosis and location method of intelligent substation process network with vertical integration was proposed.It provides a method for the construction of the real-time information chain model of the intelligent substation process network with the vertical integration.