Development of Wet-Snow Accretion Forcasting System by Using Meteorological and Transmission Line Data

Abstract

In Hokkaido Electric Power Co., we had developed some de-snowing wires to cope up with wet-snow accretion. And also preventive patrole is important to reduce power failure. We usualy conduct as early stage patrole and an assembling of circuits to melt snow by load dispatching operation. To support decisions of those measures, we developed a system on a CRT screen of engineering work station to forcast the wet-snow accretion. This system is very practical and useful, because we use transmission line data (loss levels of power line carrier and signals from snow accretion detecting devices), as well as meteorological meshed data which have fuzzy characteristics itself.