Results 131 to 140 of about 708,432 (191)

DC Ice-Melting Model for Elliptic Glaze Iced Conductor

IEEE Transactions on Power Delivery, 2011
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.
Songhai Fan, Xingliang Jiang, Lichun Shu, Pu He, Ping Liu, Hongyu Nie   +5 more
openaire   +2 more sources

Energy harvesting from iced-conductor inspired wake galloping

Extreme Mechanics Letters, 2020
Abstract Energy harvesting from wake galloping of crescent-shape and D-shape cross-section bluff bodies inspired by galloping of iced conductors is investigated. Analytical models are derived in the framework of electromechanical extension of the Hamilton’s principle, Euler–Bernoulli beam assumption and quasi-steady hypothesis.
Zhimiao Yan, Lingzhi Wang, Muhammad R. Hajj, Zhitao Yan, Yi Sun, Ting Tan   +5 more
openaire   +2 more sources

DC ice-melting model for elliptic glaze iced conductor

2010 International Conference on High Voltage Engineering and Application, 2010
Both operating experiences and experiments show that the cross-section shape of iced conductor has an obvious influence on ice-melting time, however, it is ignored by almost all the existing ice-melting models which suppose that the iced conductor has a perfect circular cross-section shape.
Xingliang Jiang, Songhai Fan
openaire   +2 more sources

Simulation and Experimental Investigation of DC Ice-Melting Process on an Iced Conductor

IEEE Transactions on Power Delivery, 2010
Ice melting with dc is one of the key technologies to prevent the Chinese power grid from ice storms. Especially after the severe ice storm in the southern part of China in early 2008, dc ice-melting technology has drawn more attention than ever before.
Xingliang Jiang, Songhai Fan, Zhijin Zhang, Caixin Sun, Lichun Shu   +4 more
openaire   +2 more sources

Nonlinear dynamic analysis of galloping of a single iced conductor with four degrees of freedom based on curved beam theory

Advances in Structural Engineering, 2022
Based on the nonlinear strain-displacement relationship of spatial curved beam theory, a finite element model for galloping analysis of iced transmission lines is established, which involves three translational degrees of freedom (DOF) and one rotational
Yan Han, Zihan Zhang, Chunguang Li, Guo-Jun Sheng, C. Cai   +4 more
semanticscholar   +1 more source

Rime icing on bundled conductors

Cold Regions Science and Technology, 2019
With the increase of electric demand and development of high voltage technology, bundled conductors are used more frequently in new power line networks. Ice load on conductors is a major structural design criterion of power lines, and icing on bundled conductors is different from that on a single conductor because of the shadowing effect by the ...
Qing, He, Jian, Zhang, Mengyan, Deng, Dongmei, Du, Makkonen, Lasse, Tiihonen, Mikko   +6 more
openaire   +3 more sources

Effects of Ice Surface and Ice Shape on Aerodynamic Characteristics of Crescent-Shaped Iced Conductors

Journal of Aerospace Engineering, 2021
AbstractIn current galloping studies, the shape and surface of ice accretion are usually simplified to the regular and smooth properties, although they have the probability of irregularity and roug...
Wenjuan Lou, Siran Chen, Zuopeng Wen, Liqi Wang, Dengguo Wu   +4 more
openaire   +1 more source