摘要
针对现有配电网故障定位技术存在的不足,提出了利用Petri网和多源广域同步信息的配网故障定位方法。分析了含有分布式电源的配电网络故障电流情况,给出了相应的开关函数和适应度函数。针对含有分布式电源的配电网络,说明了故障指示器在发生故障时的工作原理。针对网络中含有的保护装置、配自开关、故障指示器等多源信息,提出基于模糊Petri网故障诊断模型,说明了基本推理方法和故障诊断模型的建立原则,并给出了相应的故障判断流程。对提出的方法进行了仿真分析,说明了利用多源信息融合Petri网的方法,能够有效判断含有分布式电源配电网络故障区段。
Aiming at the shortcomings of the existing distribution network fault location technology,a distribution network fault location method using Petri network and multi-source wide-area synchronization information is proposed.The fault current situation of the distribution network with distributed generation is analyzed,and the corresponding switching function and fitness function are given.The working principle of the fault indicator in the event of a fault is described for a distribution network with distributed power sources.Aiming at the multi-source information contained in the network,such as protection devices,fault indicators,measurement meters,etc.,a fault diagnosis model based on fuzzy Petri nets is proposed,the basic reasoning method and the establishment principle of the fault diagnosis model are explained,and the corresponding faults Judgment process.The method proposed in this paper is simulated and analyzed,and it is demonstrated that the method of using multi-source information fusion Petri net can effectively judge the fault section of the distributed power distribution network.
作者
王明
孙立成
张征凯
刘蔚
赵成
张忠锐
WANG Ming;SUN Licheng;ZHANG Zhengkai;LIU Wei;ZHAO Cheng;ZHANG Zhongrui(Electric Power Research Institute State Grid Anhui Electric Power Co.,Ltd.,Hefei 230601,China;State Grid Anhui Electric Power Co.,Ltd.,Hefei 230000,China;Dongfang Electronics Co.,Ltd.,Yantai,Shandong 264000,China)
出处
《自动化与仪器仪表》
2023年第8期83-86,95,共5页
Automation & Instrumentation
基金
国网安徽省电力有限公司科技项目:基于边缘计算及多源广域同步信息的配电网故障定位及快速处置方法研(52120522000V)。
关键词
PETRI网
分布式电源
广域同步信息
配网故障定位
petri network
distributed power supply
wide area synchronization information
distribution network fault location
