Results 1 to 10 of about 5,463 (196)
Comparative Analysis of Slenderness Ratio Calculation Methods of Cross Bracings for Towers Between China and EU Overhead Transmission Line Standards [PDF]
, 2023 [Introduction] This paper aims to effectively avoid the design quality problems caused by the difference between domestic and foreign engineering design specifications. The study makes comparative analysis of slenderness ratio of cross bracings for angle
Hongliang GUO +3 more
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, 2023 针对使用广泛的500 kV架空输电线路，分别研究了在轻、中、重冰区，由断线及不均匀覆冰引起的导线张力对输电杆塔安全性和经济性的影响。研究表明：导线张力增加0～20%，若保持杆塔杆件规格不变，悬垂塔的超限杆件比例为0～51%，耐张塔的超限杆件比例为0～4%；若增大杆塔杆件规格以保证安全，悬垂塔的塔重增加0～28%，耐张塔的塔重增加0～5%；覆冰越厚，由断线引起的导线张力对杆塔影响越小，由不均匀覆冰引起的导线张力对杆塔影响越大；导线张力主要影响悬垂塔横担上、下平面交叉材、塔身主斜材等杆塔杆件。因此 ...
张林枫 +6 more
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Research on Lightning Performance and Protective Measures of ±800 kV UHVDC Power Transmission Line [PDF]
, 2023 [Introduction] Lightning strike is the primary cause of failures of ±800 kV UHVDC power transmission lines, and the lightning protection assessment of power transmission lines is critical to the safe and stable operation of the system.
Youjun GONG, Zhiwen HE, Ziwei YAN
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Research Progress of Galloping of Overhead Iced Transmission Lines [PDF]
, 2023 [Introduction] The galloping of transmission lines will lead to trip, worn hardware, broken insulator string, damaged tower-arm and other accidents. In serious cases, collapsed tower accidents may occur.
Guangyun MIN, Xiaohui LIU, Xin ZHAO
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Fast Analysis Method of Overhead Line Tree Barrier Based on Vectorized Power Line [PDF]
, 2023 [Introduction] With the continuous and rapid growth of the number of tree barrier inspections, visible light aerial photogrammetry has become the most important inspection method for hidden dangers of tree barriers in transmission lines of power supply ...
Junda HUANG, Rouna XU, Siyao TANG
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Discharge characteristics and discharge simulation model of long air gaps containing a floating conductor [PDF]
, 2022 Long air gaps containing a floating conductor are common insulation types in power grids. During the transmission line live-line work, the process of lineman entering the transmission line air gap constitutes a live-line work combined air gap, which is a
Gao, Jiachen <1995>
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全球能源互联网, 2021 能源转型背景下新能源的迅猛发展给电力系统带来更多不确定性,如何评估在此形势下电网规划方案的合理性是一项重大挑战。输电线路利用率是评价输电资源利用的关键指标,但传统利用率指标通常以热稳定极限功率为参照,忽略了电网运行状态对线路输电能力的影响,无法从指标本身分析输电资源利用水平受限的原因。在系统安全约束限制下,输电线路最大输电能力（total transfer capability,TTC）一般小于热稳定极限功率。对输电线路TTC的计算方法进行了研究,以最优潮流模型为基础 ...
杨钤, 王建学, 林帆, 张耀
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水电科技, 2023 随着人们生活水平的提高，家用电器的广泛应用导致用电需求迅速增长，加大了输电线路的巡检负担。传统的人工巡检方式已无法满足不断扩大的电网规模，因此迫切需要引入先进的无人机自动巡检技术来减轻工作压力、提高效率，并确保电力供应的安全和稳定。文中概述了当前输电线路巡检的现状，总结了无人机自动巡检的优势和关键技术，探讨了实施该技术的策略和应用方法，旨在为公用事业公司提供有力支持。通过分析案例和性能评估，文中还探讨了无人机自动巡检的成本效益、安全性和环境影响，为未来电力输送系统的可持续发展提供了有益见解。
刚涛 李 +3 more
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水电科技, 2023 随着科学技术的进一步发展，智能化平台被广泛应用于各行各业，为各个行业带来了较大的便利。智能化平台就是指能够自动化、智能化处理数据、信息和业务流程等的技术平台。它结合了人工智能技术、计算机技术、大数据分析技术等高新技术，通过对算法以及模型的利用，来实现对各项数据的处理和分析，以进一步提高工作效率以及提升工作准确度。对于输电线路运检来说，利用智能化平台，能够进一步提升输电线路的运检效率。文章主要对输电线路运检中智能化平台的作用进行探讨，希望可以为输电线路运检人员提供一些有力参考。
东 曾
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Threat detection in transmission scenario based on TATLNet [PDF]
, 2020 The operation of cranes and other large machinery threatens the safety of transmission lines. In order to solve this problem in the transmission scenario, the research from the aspects of data enhancement, network structure and the hyperparameters of the
Bo WANG +5 more
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