无源光网络技术用于输电线路监测的研究

Application of PON Technology to Overhead Transmission Line Monitoring

针对输电线路监控系统的带宽要求增长及无线传输不稳定等困难,结合成熟的无源光网络(passive optical network,PON)技术,设计一种可用于监测高压输电线路及塔/杆的装置。该装置利用高压输电线路感应提供电源,并结合无源光网络技术中的总线型拓扑来回传采集信息。通过对传输场景的建模分析,提出监控功能、电源模块分离设计,以便为外部监控设备提供传输通道和电能,或利用外部电源,能够整合输电线路监测领域的现有资源,减低运维成本,提高监测传输质量。

Based on the transmission line monitoring problems such as increasing band width requirement and instable wireless transmission,a device was designed by using the Passive Optical Network technology(PON) to monitor HV transmission lines and towers,which,powered by inducted energy,transmits the acquired data based on the chain topology in PON system.By analyzing the models of transmission scenarios,the monitor function and power module were designed separately so as to provide the external monitoring device with transmission channel and power,which can integrate the existing monitoring resources of transmission lines,reduce the operation cost,and improve transmission quality.