500kV直流断路器快速机械开关典型故障特性及可靠性提升方法研究 [PDF]
, 2023 直流断路器是构建柔性直流电网不可或缺的关键设备。快速机械开关是直流断路器中承载电流、实现快速分合闸、耐受分闸恢复电压的核心组件，其结构复杂、动作速度快、电气应力严酷、可靠性要求高，因而设计研制难度大，任一环节出现问题均会影响直流断路器乃至柔直电网的安全可靠运行。然而，目前快速机械开关由于存在设计选型不合理、工艺管控不严格、试验考核不完善等问题，导致在实际工程应用中故障率较高。针对已应用于张北柔性直流电网试验示范工程的500 kV直流断路器，分析了直流断路器研制、调试 ...
张涛 +4 more
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Insulator Detection Method Using YOLO Combining Feature Reuse and Reconstruction [PDF]
To overcome challenges such as low generalization performance and difficulty in identifying insulators amidst complex backgrounds in deep learning-based insulator defect detection methods, this study introduces a novel method based on the You Only Look ...
Lulu YANG, Ping MA, Cong WANG, Xinkai LI, Yue MENG, Hongli ZHANG
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Deep reinforcement learning based task allocation mechanism for intelligent inspection in energy Internet [PDF]
, 2021 In order to reduce the cost and improve efficiency of power line inspection, UAV (unmanned aerial vehicle), which use mobile edge computing technology to access and process service data, are used to inspect power lines in the energy internet.However, due
Chao YANG +5 more
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Research on sensing properties and detection technology of FBG embedded in anisotropic material and complex structure [PDF]
, 2011 结构健康监测对于提高工程结构的运营效率，保障人民生命财产安全具有极其重大的意义。光纤光栅以其独特优势成为最具发展前景的埋入式传感器。本文研究光纤光栅埋入各向异性材料与复合结构基体后，光纤光栅与基体的相互作用力；建立基体所受的载荷与埋入式光纤光栅光谱响应的关系；实现埋入式光纤光栅在复杂结构载荷下健康监测。主要研究工作有以下三个方面： 一、研究分析了各向异性材料受轴对称复杂应力载荷或均匀温度载荷时，材料内部的应力与应变分布情况，并对埋设其中的光纤光栅传感特性进行了细致的研究 ...
陈文
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Data analysis before and after the transformation of Yuanmou Julin geoelectric field [PDF]
Taking the geoelectric field observation data of Yuanmou Julin of Chuxiong Earthquake Monitoring Center Station as the research object, combined with the ideas and specific contents of the two transformations since the geoelectric field observation，the ...
Jianming Shi +4 more
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Key method of digitization of power distribution panel with artificial intelligence identification for power communication network [PDF]
To enhance the operational management efficiency of the power communication network, artificial intelligence technology was utilized to develop a digitalization method for distribution panels within the communication power system.
CHEN Yitong +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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Heterogeneous Image Fusion Algorithm and Its Application in Power Facility Detection Research [PDF]
ObjectivesTimely and accurate detection of power facilities is very important to ensure the reliability of energy supply. However, a single sensor has certain limitations in the detection of power facilities.
JIA Menghan +3 more
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Research of High Voltage Switchgear Appliance Based on Ultraviolet Detection [PDF]
, 2014 伴随着我国智能电网规模的不断扩大，对电力系统的安全运行要求越来越 高，同时，因高压放电引起的电网事故尤其是因绝缘问题造成的事故发生也在逐 渐增多。据相关专业部门的统计分析，目前因绝缘问题导致的电力系统事故占所 有电力事故中的第二位，因事故造成的经济损失、影响范围不可估量。 故采用先进有效的检测技术，预先发现和处理绝缘缺陷或线路隐患，对高压 电气设备的维护、修理、防止事故发生具有深刻的意义。本文在分析国内外大量 文献的基础上，基于紫外检测技术、高压电气设备放电原理，研究了以日盲区紫 外光信号为特征的 ...
邢文涛
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