Asynchronism of ice shedding from the de‐iced conductor based on heat transfer

Wang, Yaoxuan; Jiang, Xingliang; Fan, Shanhui; Meng, Zhongju

doi:10.1049/iet-smt.2015.0258

Cited by 8 publications

(2 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While the ice does not fall, the element mass is determined by the flow of melted water. When the altitude of the original low point m1 at the two end nodes is greater than the altitude of the original high point m2 , the element mass can be expressed as formula (14); otherwise, the mass can be expressed as formula (16). Therefore, the element mass with conductor vibration can be obtained as follows:…”

Section: Mass Correction a Er Initial Ice Sheddingmentioning

confidence: 99%

See 1 more Smart Citation

Modeling and Analysis of Progressive Ice Shedding along a Transmission Line during Thermal De‐Icing

Xie

Huang

Wang

et al. 2019

Mathematical Problems in Engineering

View full text Add to dashboard Cite

Progressive ice shedding (PIS) along transmission lines is a common type of ice shedding during thermal de-icing that requires investigation to ensure the security of transmission lines. In current research, PIS is commonly analyzed using a constant speed for ice detaching from the conductor, which is not accurate for PIS simulation. Therefore, a mechanical model of PIS is established in this study to analyze PIS during thermal de-icing. First, an ice detachment model during thermal de-icing is built to determine the detachment times of the initial ice and remaining ice. Then, a two-node isoparametric truss element is employed to derive the static and dynamic equilibrium equations of an iced conductor to simulate the dynamic response of PIS. Relative to commercial software, these equations can easily accommodate the changing mass of ice with the flow of melted water. The dynamic equilibrium equations are then solved using the ice detachment model to obtain the dynamic response of PIS. Finally, small-scale and full-scale experimental results are employed to verify the proposed method. The simulation results show that the results of the proposed method are more consistent with the experimental results than are the results of existing methods that assume a constant propagation speed. The proposed method can be further applied to optimize transmission line designs and evaluate the application of thermal de-icing devices.

show abstract

Section: Mass Correction a Er Initial Ice Sheddingmentioning

confidence: 99%

“…These IDCs are effective for solid ice, but the ice in thermal de-icing is hollow ice with an air gap that involves a different IDC than that of solid ice. Although the model to calculate the air gap by thermal de-icing was proposed in [16], the IDC in thermal de-icing must be further researched.…”

Section: Introductionmentioning

confidence: 99%