Research on the wireless Ad-hoc network for power distribution network communication in medium-small cities

Communication network equipped with optical fiber has been widely applied in the main 110kV/35 kV and above power grid in the electric industry. But the urban distribution network below 35kV has not developed into a sound pattern. Ad-hoc network featured with low power consumption, low operating cost, good fault tolerance and high reliability is now a new trend in the distribution communication. An improved routing protocol based on the AODV, which is named “LQ-AODV” is put forward for Ad-hoc network that is suitable for the urban distribution grid. By evaluating the quality of link, a qualitied routing is picked up by LQ-AODV as the communication path. In this way, the problem of defective realtime performance due to the deficiency of link evaluation is solved. This Ad-hoc network and LQ-AODV routing protocol has been tested in Huangshan Power Supply Company. It proves that it is an effective method in the distribution communication.