架空线路准实时电压-电流型馈线自动化实现策略

通过分析架空线路馈线自动化实施难点，从实用化角度出发，提出了一种适用于架空线路的准实时电压-电流型馈线自动化实现策略。该策略采用检测电流信号识别馈路故障，避免了利用电压信号检测故障过程中时延配合和残压而带来的故障定位的不可靠性;利用电压型开关交流操作机制提高了户外开关运行和操作的可靠性;基于通用分组无线电业务/码分多址（GPRS/CDMA）无线通信，实现了配电网通信网络的灵活组建和准实时故障信号传输。

Implementation Scheme of Voltage-current Mode for Quasi-real-time Feeder Automation

Through analyzing difficulties in implementing the overhead line feeder automation,an implementation scheme for the quasi-real-time line feeder automation of voltage-current mode is presented from the viewpoint of practicality.The scheme can identify feeder fault by detecting the fault current and thus avoid unreliability rendered by the time delay matching and residual voltage when locating the fault by use of voltage signal.Taking advantage of the alternate current operation mechanism,the scheme improves the running and operating reliability of outdoor switches.Moreover,the scheme reaches the flexible construction of the communication network for distribution network based on the GPRS/CDMA wireless communication as well as the quasi-real-time information transmission for the fault signal.