Numerical simulation study on de-icing process of iced quad-bundled conductor
Yan Bo1; Chen Ke-quan1; Zu Zhen-ghua1; Zhang Hong-yan2; Zhou Song3
1.Department of Engineering Mechanics, Chongqing University, Chongqing 400030, China; 2.Sichuan Electric Power Test & Research Institute, Chengdu 610071,China; 3.Sichuan Electric Power Industry Commission & Test Institute, Chengdu 610016, China
Abstract：Numerical model of an iced quad-bundled conductor line with new intelligent de-icing equipments is set up by means of ABAQUS software, and simulation method of the de-icing process is numerically carried out. The feasibility of the intelligent de-icing method is verified based on the numerical simulation. Tension failure criterion is employed in the simulation of the failure of the ice, and the user material subroutine VUMAT of ABAQUS software is developed to introduce the constitutive relation of the ice and the deletion of the broken ice elements. Several de-icing scenarios are numerically studied with the variables including opening displacement of the de-icing equipment, the number of installed de-icing equipments on the line and the thickness of the ice covered on the conductors. The obtained numerical results provide a reference for the design and realization of the intelligent de-icing equipment.
2011, Vol. 30 
