基于无线通信的配电网用户实时防窃电系统设计

Design of Real-time Anti Theft System for Distribution Network Users Based on Wireless Communication

由于传统系统存在防窃效果差的问题,结合无线通信网络,提出了配电网用户实时防窃电系统设计;根据系统总体结构,将无线通信网络作为载体,以现场RS-485总线为主要通讯方式设计硬件终端,通过双向通信向主站传递信息;采用ADE7758芯片作为防窃电主站核心芯片,保证各相电流在1000:1动态范围内误差最小,将通信接口与SPI兼容串行接口相连接,保证计量参数全部传递;采用无线网络接入方式设计无线通信服务器供电线路,使每一级负荷点计量都可用作实时通讯数据;采用.NET Remoting设计系统软件功能,通过计算主负荷节点用电量和实际线损率,实现配电网用户实时防窃电系统设计;由实验结果可知,该系统最高防窃效果可达到98%,确保配电网的可靠运营。

Due to the poor anti-theft effect of traditional systems,a real-time anti-theft system for distribution network users is designed based on wireless communication network.According to the overall structure of the system,the wireless communication network is used as the carrier,and the hardware terminal is designed with RS-485 bus as the main communication mode.The information is transmitted to the main station through two-way communication.ADE7758 chip is used as the core chip of anti-theft power station to ensure the minimum error of each phase current in the dynamic range of 1 000:1.The communication interface is connected with SPI compatible serial interface to ensure the transmission of measurement parameters.The wireless network access mode is used to design the power supply line of the wireless communication server,so that each level of load point measurement can be used as real-time communication data.NET Remoting is used to design the software function of the system.By calculating the power consumption of the main load node and the actual line loss rate,the real-time anti-stealing system design for distribution network users is realized.The experimental results show that the maximum anti theft effect of the system can reach 98% and ensure the reliable operation of the distribution network.