Research in Live Working for the Straight-Line Tower on UHV DC Transmission Lines
The large capacity, long distance, high efficiency transmission electric energy can be realized by the UHV DC transmission technology, which can promote energy structure adjustment and optimized layout. Live working is the powerful guarantee for the safe and stable operation of the UHV DC transmission lines. Take the straight-line tower as an example, simulation models of entering the electric field by the hanging basket and the rope ladder are established based on the actual parameters of the UHVDC lines and corresponding tools. The finite element method is applied to calculate the electric field intensity of the live workers body surface on different paths of entering the electric field. Analyzing the calculated results, the hanging basket method is selected as the way of entering the electric field. In order to ensure the safety of working staff, the safe distance and combined gap of the hanging basket method are checked. The load conditions of the live working tools are obtained by the load analysis for the insulator string of the straight-line tower. It is shown by the field application that the live working task can be accomplished successfully by the method put forward in this paper, which provides reference for the following live working on the UHV transmission line.
ultra high voltage direct current live working electric field intensity finite element method safe distance combined gap
Xiaqing Liu Miao Yang Dehua Zou Jinliang Li Richeng Luo Dongyun Lei Huisong Ren Qi Yang
Live Working Center of State Grid Corporation of Hunan School of Electrical Engineering,Changsha University of science and technology School of Electrical Engineering,Shandong University
国际会议
西安
英文
1-4
2016-09-01（万方平台首次上网日期，不代表论文的发表时间）