摘要
为了解决中低压配电网单相接地故障的定位问题,设计并实现了交流法的信号检测装置。采用空间磁场感应的检测方式获取电流信号,用有源滤波芯片接成二阶带通滤波器对信号进行处理,采用MSP430单片机实现数据的处理与显示控制。电路结构简单、功耗低,利于在便携设备中采用。
In order to solve the problem of fault location of single-phase-to-ground for distribution networks,the signal detection device is designed and realized in this paper,The magnetic field detection is taken to get the current signal.The active filter chip is used to process the signal by connecting a second-order band-pass filter.MSP430 microcontroller is chosen to process the data and display the result.The circuit structure is simple,low in power consumption,and fit to be used on portable devices.
出处
《北京信息科技大学学报（自然科学版）》
2012年第5期45-48,共4页
Journal of Beijing Information Science and Technology University
基金
北京市教委科技面上项目(KM201110772012)
关键词
配电网
故障定位
磁场检测
有源滤波
distribution network
fault location
magnetic field detection
active filter
