大容量试验是检验电力装备性能,保障装备安全可靠运行的重要环节。现有的大容量试验回路主要依靠人工操作,存在流程复杂、效率低且易出错的问题。针对大容量试验回路智能化控制的难题,研究建立了冲击发电机单电机短路模型和双电机并联短路模型,分析了发电机短路特性,结合典型大容量试验回路设计了一键顺控方案,提出试验回路一键顺控操作流程。通过对发电机短路模型和大容量试验回路系统的仿真 ...
吴益飞 +7 more
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Research on the Interaction Between Multi-Circuit Shared HVDC Grounding Electrodes [PDF]
[Introduction] Unlike the independent grounding electrode, shared earth electrode is connected to multiple DC (Direct Current) systems, and its parameters and operation mode need to be determined by each system connected to it.
Wen WANG, Yu LIU
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Research on lightning transient distribution characteristics of cable-stayed bridges [PDF]
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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Design and Application of Three-Dimensional Digitization and Intelligent Operation System for Converter Station [PDF]
[Introduction] In response to the pain points of the operation and maintenance of the converter station, the design methods of the three-dimensional digitization and intelligent operation system are proposed, and the actual application is performed in ...
Hao ZHANG +5 more
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Summary of Grounding Fault Finding Strategies in Substation DC System [PDF]
[Introduction] With the rapid development of power electronic equipment and artificial intelligence and other high-tech, DC (Direct Current) system has been popularized and applied in substations.
Jiantao ZHANG +4 more
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Research on Design Optimization of Offshore Booster Stations [PDF]
[Introduction] In recent years, China has put into operation a large number of offshore booster stations and accumulated rich experience in the construction and operation of offshore booster stations.
Binrui ZHANG, Lei SU, Xiaogang WANG
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Research on Lightning Performance and Protective Measures of ±800 kV UHVDC Power Transmission Line [PDF]
[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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Discharge characteristics and discharge simulation model of long air gaps containing a floating conductor [PDF]
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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Review of Grid-Forming Energy Storage and Its Applications [PDF]
ObjectivesThe characteristics of low inertia and low damping in “double-high” (high renewable energy penetration and high power electronics application) power system pose significant challenges to grid stability, particularly in terms of frequency and ...
FAN Xuejun, LI Yalou, ZHAO Fei
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An AC constant current power supply design based on linearity power amplifier [PDF]
交流恒流源作为稳定电源的分支有广泛用途,其作为一项技术在电源的研究领域中有很重要的意义。其发展与科技的进步息息相关,在各个国家特别是发达国家的国民经济中占有十分重要的地位。近年来我国检测技术有了较大的提高,但同发达国家的电网检测技术相比,差距仍然很大,存在参数检测精度不高、抗干扰性较差,实时性比较差、电路设计复杂等缺点。针对这些问题,本课题建立了一个以AT89C51单片机为控制核心的恒流源控制系统,该系统具有速度快、精度高、实用性强、电路模块化等特点。 本课题已经顺利完成以下几部分内容: 1硬件控制系统:
周景迁
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