基于Petri网的微网系统配电网故障诊断研究  

Research on Fault Diagnosis of Distribution Network in Microgrid System Based on Petri Nets

作　　者：李文清 孙霞[1] LI Wenqing;SUN Xia(School of Electrical and Information Engineering,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学电气与信息工程学院,安徽淮南232001

出　　处：《洛阳理工学院学报(自然科学版)》2025年第1期50-54,共5页Journal of Luoyang Institute of Science and Technology:Natural Science Edition

基　　金：国家自然科学基金项目(51874010);安徽省教育厅项目(2020XSXXKC142).

摘　　要：针对分布式电源的接入导致微网系统配电网传统故障检测已不再适用的问题,提出一种基于Petri网配电网故障检测方法。当线路发生故障时,配电开关监控终端(Feeder Terminal Unit,FTU)检测到异常负序电流信息,迅速识别发生的故障,并上传故障信息,锁定故障发生节点,并对故障节点搭建Petri网模型,经过矩阵运算,可准确判断故障发生所在馈线位置。用MATLAB中的Stateflow模块对Petri网模型搭建仿真模型,验证基于Petri网配电网故障诊断的准确性。The connection of distributed power sources in microgrid systems makes the traditional fault detection no longer applicable.In response to the problem,this article proposes a fault detection method based on Petri nets.When a fault occurs in the line,the FTU detects abnormal negative sequence current information,quickly identifies the fault,uploads fault information,and locks the node where the fault occurred.Building a line fault model using Petri nets can quickly determine the location of the fault.And the Stateflow module in MATLAB is used to simulate the construction of Petri net models,improving the accuracy of fault detection on Petri Nets.

关 键 词：微网系统 分配式电源 故障诊断 PETRI网 STATEFLOW 

分 类 号：TM73[电气工程—电力系统及自动化]