基于无线传输的输电线路调试测量系统设计与实现

设计并实现了一套基于无线传输的输电线路调试测量系统.该系统由无线中心主站、无线电流采集传输节点、无线电压采集传输节点组成,采用2.4GHz频段高速无线网桥进行数据通信,以避免变电站常规干扰源的频段,且具有传输距离远、传输稳定的特点.利用互感器套管和电容器组成无线电压采集传输节点,基于霍尔电流传感器和电流互感器组成无线电流采集传输节点.无线电流采集传输节点、无线电压采集传输节点间采用基于IEEE1588协议的时钟同步模块进行时间同步.测量系统实现了数据存储、波形显示、数据分析和报表自动生成等功能.在江苏电网某500kV变电站进行了现场试验,验证了该测量系统的有效性与可靠性.本测量系统可避免复杂的布线工作,减少变电站传导干扰影响,显著提高试验效率.

Design and Implementation of a Measurement System for the Testing of Transmission Lines Based on Wireless Communication

A measurement system for the testing of transmission lines was designed and implemented, which greatly reduced the testing time, avoided the arrangement of cables, and hence enhanced the efficiency of the test. The measurement system, consisting of a center station, a current acquisition and transmitting node, a voltage acquisition and transmitting node, etc., is based on wireless communication. A high-speed wireless bridge working at 2.4GHz together with a clock synchronization module based on the IEEE1588 communicating protocol was employed for the communication and time synchronization. The data storage, waveform display, data analysis, automatic report generation and other functions have been achieved in the measurement system. A practical test was done at a 500 kV substation in Jiangsu Province of China, which proves the validity and effectiveness of the measurement system.