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南自PSL603U型线路光纤差动保护电压切换箱及重合闸同期回路问题分析及处理
水电水利, 2020 我厂220千伏7201、7202原线路保护由四方高频保护更换为南自PSL603U型线路光纤差动保护,改造及投运过程中电压切换回路、重合闸同期回路发现了一些隐含性的缺陷,采取了一些处理办法。
昂霄 郭
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经导管主动脉瓣置换术患者应用抗栓塞脑保护装置的临床观察 [PDF]
浙江大学学报. 医学版目的 观察经导管主动脉瓣置换术（TAVR）患者使用Sentinel抗栓塞脑保护装置的临床结果。 方法 ...
张 岚 +7 more
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Research on Protection Scheme of DC Microgrid Integrated with Fault Current Limiting Control Technology [PDF]
, 2023 [Introduction] With the development of new loads, such as distributed power sources and electric vehicles, DC(Direct Current) microgrids have the advantages of fewer commutation links and lower system losses than AC(Alternating Current) microgrids, and ...
Bingyao ZHENG +6 more
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Diagnosis of Power System Defects by Large Language Models and Graph Neural Networks [PDF]
Defect ratings and analysis and processing of different devices and equipment in the power system are often affected by the subjectivity of operation and maintenance personnel, resulting in different severity ratings for the same defect text description.
LI Li, SHI Rongliang, GUO Xu, JIANG Hongxin
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Renewable Energy Distribution Network Overcurrent Protection Based on Positive-Sequence Sudden-Change Component Locus Identification [PDF]
ObjectivesWith the widespread integration of renewable energy, the uncertainty of power flow in distribution networks with neutral points grounded through small resistors has made the setting of traditional three-stage current protection increasingly ...
LI Shuyi +6 more
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Analysis on the Current Phase Compensation in Differential Protection for Transformer [PDF]
, 2013 分析了接线双绕组变压器微机差动保护相位补偿采用角接与算法相位补偿关系,变压器差动保护内部两相短路故障灵敏度与相位补偿关系,得出无论变压器中性点是否接地,相位补偿选择低压侧的方案对差动保护灵敏度有利。This paper analyzes the relationship between angle-connection phase compensation and the algorithm phase compensation using in the current phase ...
朱文强, 谢珍贵, 黄兴平
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Summary of Desert Photovoltaic Power Transmission Technology [PDF]
To achieve carbon peaking and carbon neutrality goals and improve energy efficiency, new energy plays a major role in China strategic deployment. However, as centralized photovoltaic is located in desert areas, photovoltaic power transmission has become ...
CHU Shuai +5 more
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Evolution analysis of power wireless private networks for control services [PDF]
With the in-depth advancement of energy IoT and power IoT, the application of wireless communication technology in the power industry has received more and more attention.
DING Zhonglin +3 more
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Analysis Based on the Simplified Sequence Component Method [PDF]
, 2013 分析了对称分量存在不足,结合平衡线路的模变换数学特性,得出简化序分量法在输电线路的故障分析原理。提出了简化序分量法在短路和断线故障分析及选相原理,解决了距离保护作为yd变压器远后备保护存在的问题。On the basis of an analysis of the disadvantages of symmetrical component,under consideration of mathematical characteristics of the modular transformation ...
谢珍贵, 黄兴平
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, 2018 为检验CT(电流互感器)变比、极性及线路保护、计量、母线保护、主变差动保护和后备保护等二次回路是否正常,现场试验人员需要做CT(电流互感器)通流试验。但在实际试验过程中,试验引线需试验人员攀爬至CT(电流互感器)构架上接线,存在安全隐患；另一方面,换线、换相操作时,试验人员需多次攀爬CT构架,耗费大量工作时间。因此,需研制一种便携式CT试验仪通流试验钳,以满足通流试验需要。
润泽 扶
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