基于电力线的信号传输系统的设计

目前,低压配电所中的现场设备主要采用现场总线技术、工业以太网技术或无线通信技术来进行组网,但是,它们均存在不足。因此,本文提出基于宽带电力线通信技术的组网方案。该方案具有无需重新布线、通信速率高、设备成本低和节点移动性好等优点。在此基础上提出新型配电自动化系统的整体设计方案并具体给出PLC终端模块的软硬件设计。实验表明,该系统能实现低压配电自动化中的遥测、遥信、遥调、遥控功能。

Design of Signal Transmission System Based on Power Line

Now the main technologies, which are used for networking in the low-vohage power distribution spot, are the fieldbus technology, industrial ethernet technology and wireless communication technology. But they all have their own disadvantages. In order to overcome the shortages of the traditional methods, a new method based on BPLC（ broadband power line communication） is introduced. Its advantages are no-wiring, high communication rate, low cost of equipment and good mobility of node. Based on the method the overall design of a new distribution automation system is given. The hardware and software design of the PLC ter- minal module are introduced in detail. The results indicate that the system can realize remote-measurement, remote-communica- tion, remoteregulation, and remotecontrol.