【作者】 王昭杨；

【导师】 戚宇林；

【作者基本信息】 华北电力大学（河北） ， 通信与信息系统， 2010， 硕士

【摘要】 配电网交流故障定位方法的思路是：线路出现单相接地故障以后,在停电离线状态下向故障相注入交流信号,然后携带手持交流信号探测器用二分法沿线路检测,直到找到故障为止。交流注入信号频率本文选择60Hz,相对与S信号注入法,称为低频交流注入法。通过本文的研究工作,取得了如下主要研究成果与结论：(1)首次将交流定位方法从经验提高到理论。(2)给出了交流信号源和交流信号探测器的设计方法。(3)探测器采用单片机C8051F310,这是目前比较先进的单片机。(4)数据显示部分用液晶显示模块以节省电池的耗电量,显示器与单片机的接口为串行通信接口。该方法可以地面检测,便于现场人员操作,并通过保定市定州赵家洼变电站线路的实验证明了其有效性。The idea of AC locating fault method in distribution system is that injecting an AC signal into the fault phase after a single line to ground fault happened, and then diagnosing the fault along the transmission line with the handled AC signal detector utilizing dichotomy method until the fault is determined. The frequency of the injected AC signal used in this study is 60 Hz. Compared with the injected S signal technique, this method is called low frequency AC signal injection method. The study of this paper made the following key findings and conclusions:1. Exchange the AC positioning methods from experience to theory by the first time.2. The low-frequency AC positioning method is firstly proposed and is implemented.3. The detector use microcontroller C8051F310, which is the more advanced microcontroller.4. Data show uses LCD module in order to save battery power and the interface of display and microcontroller is serial communication interface.The proposed technique allows the ground detecting and is convenient for engineers’operation., the locating fault efficiency is improved and the validity of this method is proved by experiment.更多还原

【Abstract】 配电网交流故障定位方法的思路是：线路出现单相接地故障以后,在停电离线状态下向故障相注入交流信号,然后携带手持交流信号探测器用二分法沿线路检测,直到找到故障为止。交流注入信号频率本文选择60Hz,相对与S信号注入法,称为低频交流注入法。通过本文的研究工作,取得了如下主要研究成果与结论：(1)首次将交流定位方法从经验提高到理论。(2)给出了交流信号源和交流信号探测器的设计方法。(3)探测器采用单片机C8051F310,这是目前比较先进的单片机。(4)数据显示部分用液晶显示模块以节省电池的耗电量,显示器与单片机的接口为串行通信接口。该方法可以地面检测,便于现场人员操作,并通过保定市定州赵家洼变电站线路的实验证明了其有效性。The idea of AC locating fault method in distribution system is that injecting an AC signal into the fault phase after a single line to ground fault happened, and then diagnosing the fault along the transmission line with the handled AC signal detector utilizing dichotomy method until the fault is determined. The frequency of the injected AC signal used in this study is 60 Hz. Compared with the injected S signal technique, this method is called low frequency AC signal injection method. The study of this paper made the following key findings and conclusions:1. Exchange the AC positioning methods from experience to theory by the first time.2. The low-frequency AC positioning method is firstly proposed and is implemented.3. The detector use microcontroller C8051F310, which is the more advanced microcontroller.4. Data show uses LCD module in order to save battery power and the interface of display and microcontroller is serial communication interface.The proposed technique allows the ground detecting and is convenient for engineers’operation., the locating fault efficiency is improved and the validity of this method is proved by experiment.更多还原