基于复合量度的电力光纤多电路配置可靠性

Reliability of power fiber multi-circuit configuration based on compound measurement

能源互联网的一个本质特征是通过先进的通信网络实现能源供给与消费间的双向互动。以光纤通信为基础的高可靠通信网络优化配置以满足多业务的服务质量(QoS)需求成为亟需解决的关键问题。从电力光纤传输网络的可靠性入手,并考虑电力通信业务的多QoS传输需求,设计一种基于复合量度的电路配置优化方法。有别于传统最短路配置算法,新方法在一次配置过程中同时规划m条可行配置方案,并且通过分析路径集的带宽、时延、丢包率、衰耗和成本等不同量度和光路全程可靠性,最终获得满足可靠性和传输QoS需求的光路配置方案,并给出优先选择序列。多电路优化配置将有效提升电力通信的可靠性,也可为未来多路流量分摊提供电路配置保证。通过某城区35~500 kV电力通信站网实例仿真计算,新配置方法能够一次获取4条同时满足业务多QoS需求的传输电路,实现主备电路保护。对电力光纤传输网络的规划和运行优化,提高电力通信网的资源调配能力和可靠性提供参考。

An essential feature of energy internet is the two-way interaction between energy supply and consumption through advanced communication network.Therefore,the optimal configuration of highly reliable communication network based on optical fiber communication to meet Quality of Service(QoS) requirements of multiple services has become a key problem to be solved urgently.Starting with the reliability of power fiber transmission network and considering the multi-QoS transmission demand of power communication service,a circuit configuration optimization method based on compound measurement is designed.The new method is different from the traditional shortest path configuration algorithm.In one configuration process,m feasible configuration schemes are planned at the same time.In addition,the reliability of the entire optical path and different measurements of the path set,such as bandwidth,delay,packet loss rate,attenuation and cost,are analyzed.Finally,the optical path configuration scheme that meets the requirements of reliability and transmission QoS is finally obtained,and the priority selection sequence is given.The optimized configuration of multi-circuit will effectively improve the reliability of power communication and also provide a guarantee of circuit configuration for future multi-channel flow allocation.In the simulation of 35~500 kV power communication station network in an urban area,the new configuration method can obtain four transmission circuits that meet the demand of multi-QoS at the same time to realize the protection of main and standby circuits,which is of great theoretical significance to planning and operation optimization of the power optical transmission network and to the improvement of the resource allocation ability and reliability of the power communication network.