摘要
配电网故障定位系统对电网供电可靠性具有重要意义。针对配电网单相接地故障,利用某高压实验平台搭建10 kV配电网仿真模型,提取零序电流暂态分量作为故障特征量,以STM32为主控芯片,设计了一套符合中小型企业的配电网故障定位系统。该定位系统硬件设计方面主要包括数据采集模块、数据处理模块、运算控制单元和通信模块;软件设计方面主要包括模数转换程序、故障定位程序。测试表明,该定位系统能够准确、及时地判断出配电网单相接地故障发生的区间段。
Distribution network fault location system is of great significance to the reliability of power supply.In response to single-phase grounding faults in distribution networks,this paper uses a certain high-voltage experimental platform to build a simulation model of a 10 kV distribution network,extracts the transient component of zero sequence current as the fault feature quantity,and designs a distribution network fault location system suitable for small and medium-sized enterprises using STM32 as the main control chip.The hardware design of the positioning system mainly includes data acquisition module,data processing module,arithmetic control unit and communication module.The software design mainly includes analog-to-digital conversion program and fault location program.The test results show that the positioning system can accurately and timely determine the single-phase grounding fault of distribution network.
作者
陈小青
CHEN Xiaoqing(School of Electrical Engineering,Chongqing Industry Polytechnic College,Chongqing 401120,China)
出处
《自动化应用》
2025年第1期228-231,共4页
Automation Application
基金
2023年度重庆工业职业技术学院思政专项项目(2023GZYSZY-09)。
关键词
配电网
单相接地故障
STM32
故障定位
硬件设计
软件设计
distribution network
single-phase grounding fault
STM32
fault location
hardware design
software design
