Results 91 to 100 of about 642,858 (215)
Zhongguo dianli, 2020 In order to avoid overvoltage in the power grid, shunt reactor is usually installed at both ends of long lines. As the power grid construction is expanding, long lines are often cut off and new substations are connected into the grid in order to improve ...
Bin CAO, Lifang MIAO, Shuai YUAN
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Journal of Physics: Conference SeriesAbstract Experimental results indicate that during non-full-phase operation following a single-phase transient grounding fault, power frequency overvoltage occurs in the system. In systems with significant wind power integration, such overvoltage may lead to the disconnection of wind turbines, thereby increasing the probability of ...
Donghui Wang, Zengping Wang, Tong Wang
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EnergiesVirtual synchronous generator (VSG) control, which can provide inertia output, damp power oscillations, and offer frequency and voltage support to power grids, has become a growing trend in the control field of wind power generation. As a new technology,
Shuyi Wang +5 more
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Smart Grid, 2017 500 kV输变电工程的线路模型选择对操作过电压有着不同的影响以及实际工程中不同检修方式都对工频过电压有影响，针对上述问题笔者应用PSCAD电磁暂态仿真软件对在Bergeron、Mode Model、Phase Model线路模型下进行仿真验证和分析在十二种检修方式下对工频过电压影响最大的一种方式，通过实际工程说明操作过电压在Mode Model、Phase Model线路模型下更接近实际。对于双回路的输变电工程在不同检修方式下，对于其中一条线路分析，与它相邻线路检的修对其工频过电压影响最严重，在实际工程中，工作人员应该多加注意。笔者通过以上分析对500 kV实际输变电工程启动和检修有一定的指导意义。 The line model selection of 500 kV transmission ...
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Technical and vocational skills (TVS): a means of preventing violence among youth in Nigeria [PDF]
, 2017 Technical and vocational skills are an important tool for reducing violence among youth, especially in Nigeria, who face security challenges due to different kinds of violence.
Ibrahim, Mohammed +1 more
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Optimal Dispatch of Residential Photovoltaic Inverters Under Forecasting Uncertainties
, 2014 Efforts to ensure reliable operation of existing low-voltage distribution systems with high photovoltaic (PV) generation have focused on the possibility of inverters providing ancillary services such as active power curtailment and reactive power ...
Dall'Anese, Emiliano +3 more
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Modeling and analysis of a DC electrical system and controllers for implementation of a grid-interactive building [PDF]
, 2019 As the penetration of photovoltaic (PV) systems on building rooftops increases, the accumulated effect of the rooftop PV power outputs on electric network operation is no longer negligible.
Kim, Y.
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THE RESONANT OVERVOLTAGE IN NON-SINUSOIDAL MODE OF MAIN ELECTRIC NETWORK
Electrical engineering & Electromechanics, 2018 Purpose. The resonant overvoltage arises in main electrical networks as a result of random coincidence of some parameters of circuit and its mode and it may exist for a relatively long time.
V. G. Kuznetsov +4 more
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High Voltage, 2019 High-voltage direct current circuit breakers (HVDC CB) are one of the key technologies of multi-terminal DC systems and DC grids. Different from other equipment that use a large number of power electronic devices, the HVDC CB cannot obtain its power from
Xiangyu Zhang +7 more
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Electronic equipment, systems, and techniques: A compilation [PDF]
Electronic circuits with specialized computer applications and control circuits are presented.
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