A Study on the Compound Communication Network over the High Voltage Power Line for Distribution Automation System

Power company have been operated the automation system for relaying and supervisory controls by using public communication network. But these systems must have the strictest requirements of communication. For these reasons, there are a lot of difficulties to apply to the automation system considering the cost, location environment, and other characteristics of power lines. But, recently, the existing power line can be used as communication media by using power line communication (PLC). PLC can be adopted as a main communication means, and other wired/wireless can be adopted as second means. In order to this, the high voltage PLC have to be used as a long distance communication network. In our study, in case of accidents, we suggest the intelligent Compound Communication System for optimal roundabout routes in communication network, and verified its performance and reliability in the real test field.