电力线载波通信控制系统设计.doc

分类号：TP U D C：D10621-408-(20) 1257-0 密 级：公 开 编 号：200071022 电力线载波通信控制系统设计 电力线载波通信控制系统设计 摘 要 电力线载波通信技术出现于20世纪20年代初期,电力线载波是电力系统特有的、基本的通信方式。电力线载波通信是指利用已有的电力网，通过载波调制方式将模拟或数字信号进行高速传输的技术。目前可用来传输电话、远程数据和远方保护等信号,是确保电网安全、优质、经济运行,实现调度自动化和管理现代化的重要通信方式之一。它以电力线路为传输通道,具有通道可靠性高、投资少见效快、与电网建设同步等优点。 本文介绍了在低压配电线上用无线专用芯片nRF401实现数据的传输，采用电力线载波形式，设计出了一个家电网络控制系统，对家电网络进行远程集中控制，可以对多路家用电器的运行情况进行实时监测和控制，并分析了电力线通信的通道特性及其干扰，结合电力通信的特点提出了解决办法。 实验数据表明，系统通信状况良好，可实现对家用电器的可靠控制稳定，成本低，具有一定的实用价值和应用前景。 关键词：电力线载波；家电网络；芯片nRF401；电力通信Design of Power Line Carrier Communication Control System Abstract The technology of power line carrier telecommunication was came forth in 1920s.The signal carrier of power line is a peculiar，basic communication technology of the power system．In the power line carrier communication the analog or digital signal is transmitted by power line in high speed .It can be used to transfer the signals of telephone, remote data and remote protection. It is to ensure that the network safety, high quality and economic operation, realizing the modernization management dispatching automation and an important means of communication. Transferring in power line, the power line carrier telecommunication have advantages of high reliability, quick effect in less investment and with power grid construction synchronization etc. The paper introduces a data transfer system on the low-voltage power line by using a special chip nRF401 wireless carrier. It adopts power line carrier form, design a household appliance, network control system of remote control network for road, the operation situation of household appliances real-time monitoring and control.The paper analyzed the channel characteristics of the PLC communication and put forwards solutions for the disturbance. The experiment results show that system can work well and control appliance effectively．The system has low cost，stable perform ance，and a wide application prospect. Key w