198. Communication Channel Reconstruction Technology of Wide-Area Protection Under Extreme Catastrophe

A new scheme of communication channel reconstruction technology (CCRT) for wide-area protection (WAP) under extreme catastrophe scenarios is proposed for the purpose of safeguarding the safety and reliability of relay protection. The communication hierarchy of WAP based on MPLS VPN is obtained according to the characteristic of communication system. Under the damage of optical communication channel, CCRT based on circuitous way is first realized by sturdy optical fiber, carrier, microwave and telecommunication channels and so on, and then CCRT based on wireless sensor network (WSN) is built when the circuitous path cannot reconstruct communication channel for more channels damaged. The key technology of WSN, such as the supply energy pattern, router algorithm and multi-hops way, are also discussed. The test results of multiple schemes show that CCRT based on WSN can be suitable for WAP.