Results 11 to 20 of about 2,288 (149)
, 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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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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Working manipulator motion optimization of live maintenance robot for high voltage transmission line [PDF]
, 2016 In response to the problems of artificial low-operation efficiency, high labor intensity, high altitude and high risk in drainage board bolt tightening for high voltage transmission line, a bolt tightening live maintenance robot with double arms and ...
FAN Fei +3 more
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Routing algorithm for railway monitoring linear WSN based on improved PSO [PDF]
, 2022 To solve the problems of short network lifetime and large data transmission delay, caused by unbalanced node energy consumption of linear wireless sensor network in railway monitoring scenario, a routing algorithm based on particle swarm optimization ...
Anqi LYU +3 more
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Manipulator dynamic modeling and motion planning for live working robot [PDF]
, 2016 This article is focused on a double-arm and double-manipulator live working robot.The arm motion of the robot for insulator string replacement during the operation process was decomposed.The basic operation dynamic model was established by the Lagrange ...
JIANG Wei +3 more
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Method and application of carbon emission calculation for ultra-high voltage (UHV) project construction [PDF]
, 2023 [Objective] As one of the seven key areas of “new infrastructure” development during China’s 14th Five-Year Plan period, the ultra-high voltage (UHV) projects are the backbone of China’s new power system and is of great significance to the transmission ...
CHEN Xiaohong, FU Yipeng, HUANG Chengdong, WANG Yangjie
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, 2021 随着中国经济的快速发展，国家越来越重视500kV超高压输电线路运营维护管理工作。为了进一步提升500kV超高压输电线路的管控效率，需要根据实际情况定期或者不定期对其进行故障维护，提升维护与保养的时效性，提升输电线路的实际使用效率。因此，论文主要针对500kV超高压输电线路运营维护管理进行简要分析，并提出合理化建议。
少华 武
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, 2020 在当前中国技术创新的重要时期，中国政府十分重视超高压输电线路运行维护工作。为了进一步提升500kV 超高压输电线路运行维护效率，需要根据实际情况了解中国高压输电线路运行情况，降低机械设备的故障率，同时了解500kV 超高压输电线路再电网中的地位，提升线路的运行管理质量。因此，论文主要针对500kV 超高压输电线路运行维护管理进行简要分析，并提出合理化建议。
志刚 王
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Design and Implementation of Real Three-Dimensional Urban Planning Support Platform [PDF]
, 2015 城市是人类活动最集中的场所，信息化已经成为城市发展与规划的主题， GIS是城市空间信息表达和管理的重要技术手段。近年来，基于GIS技术的各种 城市空间信息管理系统，如城市地下管线系统、土地利用管理信息系统等大多采 用二维平面的管理模式。城市规划涵盖内容广泛，包括城市居住区规划、城市中 心区规划、生态环境规划、历史文物保护规划、市政基础设施工程规划等。随着 现代城市从地面向地下空间、地上空间不断拓展延伸，多层次、立体模式管理逐 渐成为城市规划管理的发展趋势。 本文在对城市规划业务进行充分的考察和了解后 ...
张乐龙
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