Dynamic Response of Overhead Transmission Lines With Eccentric Ice Deposits Following Shock Loads

Two types of ice failure criteria are modified and combined to model the shedding phenomenon of eccentric ice deposits on overhead power transmission lines impacted by shock loads. The criteria are formulated in a user-defined element rupture subroutine, and implemented into nonlinear finite-element (FE) analysis using commercial software. The proposed modeling method is validated by the comparison of results from a physical deicing test on a real-scale 100 m single-span line and those obtained from numerical simulation. The FE model proves to be capable of differentiating eccentric ice from concentric ice deposits and confirms the ice shedding response observed in tests. The improved modeling method can be used for the design and evaluation of transmission lines in cold regions, and for the design and optimization of mechanical deicing devices and methods.

[1]  Chao Zhou,et al.  The Time-Varying Characteristics of Overhead Electric Transmission Lines Considering the Induced-Ice-Shedding Effect , 2015 .

[2]  V. T. Morgan,et al.  Jump height of overhead-line conductors after the sudden release of ice loads , 1964 .

[3]  Ghyslaine McClure,et al.  Simulation of ice-shedding on electrical transmission lines using adina , 1993 .

[4]  André Leblond,et al.  A novel ice-shedding model for overhead power line conductors with the consideration of adhesive/cohesive forces , 2015 .

[5]  K. Bathe.  Finite Element Procedures , 1995 .

[6]  Li Hong-nan.  Dynamic effect on long-span transmission line system due to insulator rupture , 2008 .

[7]  Ghyslaine McClure,et al.  Modeling the structural dynamic response of overhead transmission lines , 2003 .

[8]  Hu Yi,et al.  Analysis and Countermeasures Discussion for Large Area Icing Accident on Power Grid , 2008 .

[9]  M. Farzaneh,et al.  Vibration of Bundled Conductors Following Ice Shedding , 2008, IEEE Transactions on Power Delivery.

[10]  Jingbo Yang,et al.  Analysis on the dynamic responses of a prototype line from iced broken conductors , 2014 .

[11]  Masoud Farzaneh,et al.  Numerical analysis of the dynamic effects of shock-load-induced ice shedding on overhead ground wires , 2007 .

[12]  M Roshan Fekr,et al.  Numerical modelling of the dynamic response of ice-shedding on electrical transmission lines , 1998 .

[13]  Tamás Kálmán.  Dynamic behavior of iced cables subjected to mechanical shocks = Comportement dynamique des câbles recouverts de glace et soumis à des chocs mécaniques , 2007 .

[14]  André Leblond,et al.  Development of a Portable De-Icing Device for Overhead Ground Wires , 2005 .

[15]  M. Farzaneh,et al.  Modeling Ice Shedding Propagation on Transmission Lines with or without Interphase Spacers , 2013, IEEE Transactions on Power Delivery.

[16]  M. Farzaneh,et al.  Modelling the Dynamic Response of Iced Transmission Lines Subjected to Cable Rupture and Ice Shedding , 2013, IEEE Transactions on Power Delivery.

[17]  C. Volat,et al.  Systems for prediction and monitoring of ice shedding, anti-icing and de-icing for power line conductors and ground wires , 2010 .

[18]  Guy Fortin,et al.  Ice Adhesion Models to Predict Shear Stress at Shedding , 2012 .

[19]  Bo Yan,et al.  Numerical Simulation Study on Jump Height of Iced Transmission Lines After Ice Shedding , 2013, IEEE Transactions on Power Delivery.

[20]  Liming Wang,et al.  Dynamic characteristic of ice-shedding on UHV overhead transmission lines , 2011 .