Title :
Transmission icing: a physical risk with a physical hedge
Author :
Merrill, Hyde M. ; Feltes, James W.
Author_Institution :
Merrill Energy LLC, Salt Lake City, UT
Abstract :
For 50 years US utilities used load and short-circuit currents to melt or prevent transmission line icing. This technique fell into disuse in the US during the last 50 years. Major recent ice storms caused many downed lines and much loss of customer load. Improved control and weather monitoring allow transmission-icing risks to be hedged without switching or otherwise jeopardizing system security. A careful risk analysis is needed to develop the right strategy
Keywords :
freezing; ice; power system security; power transmission; risk analysis; short-circuit currents; customer load; risk analysis; short-circuit currents; system security; transmission line icing prevention; weather monitoring; Conductors; Distributed parameter circuits; Heating; Ice; Power system reliability; Power system security; Power transmission; Power transmission lines; Risk analysis; Storms; ice; power system operation; power system reliability; power system security; power transmission lines; power transmission meteorological factors; risk analysis; robustness;
Conference_Titel :
Power Engineering Society General Meeting, 2006. IEEE
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0493-2
DOI :
10.1109/PES.2006.1709619
