Results 31 to 40 of about 758,769 (308)
Energy Reports, 2022 Under the development trend of AC/DC hybrid power grids, converter transformers are indispensable as AC/DC conversion equipment, whose safety and stability are particularly important.
Yuanlin Pan +5 more
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A Switch Partial Turned OFF Cycle by Cycle Current Limiting Method for 3L-NPC Half-Bridge Inverters
IEEE Access, 2020 Instantaneous hardware protection is a very important method to protect inverters at the moment of over current or short circuit fault. For standalone inverters, the hardware protection can also be modified to achieve current limiting during the over ...
Xun Gao +5 more
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Heliyon, 2021 Protection coordination of AC microgrids (MGs) is a challenging task since they can operate either in grid-connected or islanded mode which drastically modifies the fault currents.
Sergio D. Saldarriaga-Zuluaga +2 more
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Energy Reports, 2022 Inverse time overcurrent protection can be applied to distribution networks with distributed power sources because of its superior protection characteristics, but its time limit coordination and value setting are complicated, which limits its large-scale
Yang Yu +4 more
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Protective coordination of main and backup overcurrent relays with different operating modes of active super-conducting current controller [PDF]
Maejo International Journal of Science and Technology, 2014 Active superconducting current controllers (ASCCs) are new generation of series compensators, which can also be categorised as fault current limiters because of their ability to decrease the fault current continuously.
Ahmad Ghafari +3 more
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Pakistan Journal of Engineering & Technology, 2022 Although traditional electromechanical circuit breakers have a proven track record as efficient and reliable circuit safety devices. Emerging power distribution technologies and architectures such as DC microgrids require advanced breaking performance ...
Muhammad Zulqair Nain, Tahir Mahmood
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Hybrid reed: Solid-state devices are a new generation of protective relays [PDF]
Serbian Journal of Electrical Engineering, 2007 Research and development in the field of electromechanical protective relays has not been conducted for tens of years. Author’s approach allows viewing the problem of re-equipment of relay protection in a new way.
Gurevich Vladimir
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Energies, 2023 This paper proposes an impedance-accelerated inverse-time over-current protection optimization scheme based on the improved quantum genetic algorithm. First, the speed of remote backup protection is improved by increasing the optimization level of backup
Xia Zhang +4 more
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AN ADAPTIVE DIRECTIONAL OVER – CURRENT PROTECTION AND EARTH FAULT PROTECTION OF DISTRIBUTED SYSTEMS
International Journal of Latest Trends in Engineering and Technology, 2017 openaire +2 more sources
Distance protection and fault location of the PV power plants distribution lines
The Journal of Engineering, 2019 Unlike the synchronous generators, the short-circuit current provided by the photovoltaic (PV) sources is limited by the grid-connected inverters and closely related to the normal conditions, which impacts the protection of the power systems.
Elshiekh K. Mohammedsaeed +3 more
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