Title :
DC Ice-Melting Model for Elliptic Glaze Iced Conductor
Author :
Fan, Songhai ; Jiang, Xingliang ; Shu, Lichun ; He, Pu ; Liu, Ping ; Nie, Hongyu
Author_Institution :
Chongqing Univ., Chongqing, China
Abstract :
Both practices and experiments show that the cross-section shape of iced conductor has an obvious influence on ice-melting time, but it is ignored by almost all existing ice-melting models which assume that the iced conductor has a perfect circular cross-section shape. Based on the observed results in the natural icing station, this paper has analyzed the shape characteristic of the iced conductor, and described the cross-section shape of iced conductor with an ellipse, then put forward a model to simulate the ice-melting process on an iced conductor with an elliptic cross-section. The simulated results have been validated in the natural icing station. The results of experiments and simulations show that the ice-melting time of the elliptic iced conductor is less than that of the circular iced conductor.
Keywords :
DC power transmission; glazes; ice; melting; overhead line conductors; power transmission lines; DC ice-melting model; circular cross-section shape iced conductor; elliptic glaze iced conductor; ice-melting time model; icing station; Conductors; Heat transfer; Heating; Ice thickness; Modeling; Shape; Transmission lines; Wind speed; Ice melting model; ice melting time; ice storm; iced conductor; transmission line;
Journal_Title :
Power Delivery, IEEE Transactions on
DOI :
10.1109/TPWRD.2011.2156433