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Research on lightning transient distribution characteristics of cable-stayed bridges [PDF]
, 2023 Bridges are usually located at the junction of land and water, where the surrounding area is open terrain, making them to be easily damaged by lightning strikes.
Dajun XU +4 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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Synoptic conditions and radar characteristics for elevated thunderstorm during a snowstorm event in Henan Province [PDF]
, 2023 A snowstorm event followed by the elevated thunderstorm occurred in Henan Province from February 24 to 25 in 2021. The operational forecast of all meteorological stations failed to capture the thunderstorm of this event, with the snowfall being ...
Guoan WANG +3 more
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Wind Power, Hydropower and Thermal Power Combined Low-Carbon Maintenance Optimization Based on Continuous Hidden Markov Model [PDF]
, 2023 [Introduction] In the context of the new power system, low-carbon maintenance of wind turbines and coordinated maintenance with conventional wind turbine generator systems (WTGS) need to be solved urgently.
Min XIE +4 more
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电力工程技术创新, 2020 随着中国经济的快速发展，中国越来越重视城市中的输电线路雷电屏蔽问题，对此也进行了多元化改革和创新。但是由于中国对于这方面的研究还处于初级阶段，目前该项技术的研究还存在着部分不足之处需要改进。对此，论文针对现阶段的输电线路的基本问题和发生的情况进行了简要分析，并提出合理化建议。
爽 郑
semanticscholar +1 more source
工程与管理科学, 2020 雷电灾害是自然界中一种危害程度较大的灾害性天气事件,雷电以其强大的电流,炙热的高温及强烈的电磁辐射等物理效应使其在瞬间产生巨大的破坏作用。雷电致灾范围非常广,常常造成人员伤亡,通信以及计算机信息系统中断,林区春秋两季的干旱季节极易引发森林火灾,严重危害人民财产和人身安全。大兴安岭地区年平均雷电日数为29.7天,属雷电多发区,雷电造成的主要灾害为雷击火,每年大兴安岭地区都有雷击火引发无数场森林火灾,是国内雷击火发生次数最多最集中的区域[1]。其中引发雷击火发生的主要原因是长期干旱和干雷暴[2 ...
肃 严 +3 more
semanticscholar +1 more source
, 2017 The damage of wind turbine blades suffered lightning strikes has been a key factor of the safe and reliable operation of wind farms. The electric geometrical model of wind turbine blades (EGMTB) was presented based on the traditional electric geometrical
Guo, Zixin +8 more
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, 2020 在国家“973”项目“雷电重大灾害天气系统的动力-微物理-电过程和成灾机理”(简称: 雷暴973)资助下, 2014~2018年连续五年在北京组织开展了雷电(也称闪电)灾害天气系统的暖季综合协同观测实验, 旨在获得对北京及周边城市群区域的雷电天气系统特征和规律的实际认识, 探索雷电资料在数值预报模式中的同化方法, 以期改进雷电重大灾害天气系统的预报效果.
郄秀书 +26 more
semanticscholar +1 more source
Journal of Healthcare Engineering, Volume 2018, Issue 1, 2018., 2018 A terminology (or coding system) is a formal set of controlled vocabulary in a specific domain. With a well‐defined terminology, each concept in the target domain is assigned with a unique code, which can be identified and processed across different medical systems in an unambiguous way.
Yinsheng Zhang +2 more
wiley +1 more source
Dianci bileiqi, 2022 架空输电线路遭受雷击会出现很高的暂态过电压，国内外学者对输电线路的首次雷击暂态响应作了大量计算，但未见分析考虑后续雷击的影响。为了全面分析雷击对输电线路的影响，建立了考虑后续雷击输电线路模型，采用该模型对线路暂态电位进行了计算；对比分析了其遭受首次雷击和后续雷击两种情况的暂态电位波形。结果表明：绕击时后续雷击在输电线路上产生的雷电过电压比首次雷击高15.14%;过电压上升时间约等于首次雷击的一半，后续雷击输电线路的危害比首次雷击大；雷击杆塔塔顶时，首次雷击比后续雷击在输电线路中所产生的过电压高一倍左右 ...
罗楚楠, 张胜, 黄一威
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