Communication channel reconstruction based on wireless sensor network for pilot differential protection

This paper discusses communication channel reconstruction based on wireless sensor network for pilot differential protection. Considering communication characteristic of WSN module, this paper further studies and analyzes redundant arrangement and communication performance under hazard from the perspective of practical application. A redundant arrangement algorithm of nodes based on reliability and optimal cost of the whole communication network is proposed. And the influence of communication distance, line span and hop counts to communication delay and is studied under ADOV routine by pilot differential protection digital simulation test. The results of pilot differential digital simulation test shows that emergency protection channel constructed by wireless sensor network which uses redundancy arrangement method to do network panning can achieve strong reliability and meet the need of pilot differential protection under extreme disaster.