A Network Optimization Method Based on Resource Sharing of Power Optical Cable Lines

There are two kinds of optical cables,i.e.,the ordinary optical cable and the special power opitcal cable such as optical fiber composite overhead ground wire(OPGW) and all-dielectric self-supporting optical cable(ADSS) optical cable,used in the underlying structure of power optical cable networks.The index of configuration ratio of special power opitcal cable line to tranmission line is an important factor impacting the construction cost of power optical cable network.Throughly considering the particularity of power optical cable network construction and the differences of cost structure,an evoluation index of resource sharing is designed,and an optimization method of optical cable route in loop communication system,in which the demand relation of communication capacity requirement and sharing of optical cables are taken into account,is proposed.Taking the backbone loop communication network for 500 kV substations in a certain provincial power company as the case,the optimization schemes of optical cable network for 500kV substations under different conditions are analyzed and compared..