Review of Ice Storm Cases impacted seriously on Power Systems and De-icing Technology

Abstract

The worldwide ice storm cases impacted seriously on power transmission systems are presented.Furthermore,with a review of literatures related to anti-icing/de-icing technology for power grids,an integrated scheme for responsing ice storm is proposed with three aspects.Firstly,to build up a monitoring system for the important transmission lines that can activate for risk analysis of damage and thus can enhance the anti-icing capability of power grids.Secondly,to upgrade the design standard of transmission lines in the potential heavy ice region,and to employ various measures for different areas,such as classic anti-icing/de-icing methods reviewed in this paper,or novel technology being developed for this purpose.Finally,to set up a decision support system to help effectually make the resource in conformity to restore the grid for quick power supply when serious ice storm befalls.