超长距光传输技术在宁夏电网中的应用

随着特高压交直流电网的不断建设,电力通信系统对超长站间距离、无中继站光传输技术的需求也日益凸显。针对超长距无中继传输技术在实际应用过程中面临的问题,从线路损耗、色散效应以及光信噪比三个关键因素进行分析,结合宁夏电网第一条省内超长距无中继传输系统即六盘山750kV变电站至灵州±800kV换流站通信系统的建设,通过运用光放大器、纠错、色散补偿、拉曼等关键技术,实现2.5 Gbit/s 速率、10 Gbit/s 速率长传系统通信。应用结果表明:超长距光传输技术的应用实现了六盘山750 kV变电站至灵州换流站间的超长站距通信,满足了系统运行的各项性能指标,节省了大量建设资金及维护费用。

Application of ultra - long span optical communication technology in Ningxia power grid

With the continuous construction of UHV AC and DC power network, the demands of theoptical transmission technology with ultra-long interval station distance and no relay station are be-coming increasingly prominent for power communication system. In the light of the confronting prob-lems in the process of practical application, the three aspects of line loss , dispersion effect and opticalsignal to noise ratio were analyzed, combined with the construction of the first transmission systemwith ultra-long distance and no relay station as well as the communication system from Liupanshan 750 kV substation to Lingzhou ±800 kV converter substation in Ningxia power grid. The communicationof 2.5 Gbit/s system and 10 Gbit/s system were achieved by means of optical amplifier, error correc-tion, dispersion compensation, Raman and other key technologies. The application results show thatthe application of long distance optical transmission technology realized the communication of Liupans-han 750 kV substation to Lingzhou ±800 kV converter station, satisfied each performance index ofthe system operation, saved large amount of construction funds and the maintenance cost.