Results 1 to 10 of about 983 (111)
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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Application of Magnetic Coupling Resonance Wireless Power Transfer in Power System [PDF]
, 2022 Wireless power transfer (WPT) can transmit electric wirelessly. It performs better under some paticular circumstances compared with the traditonal transmission mode.
HE Hao +4 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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, 2020 无为市临江二站在2009年汛期遭受雷击，导致变压器设备绝缘损坏，文章针对临江二站遭受雷击原因进行了分析，并提出了泵站避免雷击的措施，希望对今后泵站建设防雷保护有所帮助。
勇 张
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Current status and developing recommendations of tailings dam failure [PDF]
, 2018 This is the final version of the article. Available from Hindawi Publishing Corporation via the DOI in this record.Tailings dam failure accidents with limited emergency response time and huge potential threats, can often lead to heavy casualties and ...
Bu, L +4 more
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, 2017 本文在总结了前人LED的基础上,利用单片机智能控制的方法研究智能LED的设计和制备,利用色度学三基色配色原理,通过更改三基色LED的电流大小实现整体LED系统的调光和调色,系统可实现亮度20%-100%的调节,实现全彩调节,满足人们的多样化照明需求;同时可通过手机APP利用红外技术实现LED的无线遥控 ...
曹文越
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, 2021 电力工程建设必不可少的一项技术工作内容就是防雷技术，防雷技术可以避免雷击影响电力设备正常安全地使用，有助于保证电力系统的安全以及操作人员的生命安全。当前防雷技术随着电力工程的发展也在不断改进，相关工作者要明确变电站防雷保护常用技术，加强施工技术优化，提升防雷效果，保证电力工程正常运行。
波涛 薛
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Dianci bileiqi, 2022 风电机组的雷电防护是风机安全稳定运行的基本条件，目前国内外对于风电机组的雷电防护主要集中在叶片的防雷研究，对机舱的防雷保护研究较少，而现有的接闪装置无法完全保护机舱。本研究建立含金属桁架与气象站避雷针的机舱模型，通过有限元仿真软件对雷击机舱尾部附着区域进行仿真，进而分析增设不同接闪装置的雷击防护效率，以及改进金属桁架结构对雷击防护效率的影响。研究表明：气象站避雷针无法完全保护机舱；增设的避雷针雷击防护效率高于饼状接闪器，且长度为20 cm的避雷针防护效率最佳；将金属桁架的结构改进后 ...
周歧斌, 王玺, 史一泽, 边晓燕
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Dianci bileiqi, 2023 做好屋顶太阳能光伏系统的雷击浪涌过电压防护对于确保其长期稳定运行十分重要。利用PSCAD软件搭建屋顶光伏系统电路模型，计算建筑外部防雷系统遭受雷击时光伏阵列边框和逆变器直流侧浪涌过电压，分析了不同雷电流波形下SPD的防护效果，讨论不同SPD保护模式的优劣。分析结果表明：未安装SPD时，即使与建筑外部防雷系统进行了等电位联结，遭受雷击后光伏阵列边框和逆变器直流侧仍会出现较高幅值过电压，且雷电流波头时间越短，过电压幅值越高；安装SPD后，雷击浪涌过电压能够得到有效遏制，保护设备免遭损坏 ...
杨剑蓝 +4 more
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Research progress and prospects of earthquake emergency mobile observation [PDF]
Earthquake emergency mobile observation is an important means responding to earthquake disasters. It provides crucial data support for post-earthquake emergency response, inversion of earthquake source parameters, and aftershock sequence analysis.
Bo Xia +4 more
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