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Book
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute
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This book address important issues regarding the modelling and simulation tools and techniques that are applied in high-voltage engineering in modern power systems. The presented conceptual, constructive, empirical, experimental, and theoretical results are obtained in the area of high-voltage engineering. Special attention is given to protection methods against direct lightning strikes, partial discharge tests, discharges’ influence on different structures, cable screening, and induced voltages, among others.
direct lightning --- guy wire --- grounding density --- pole-mounted transformer --- spark gap --- surge arrester --- background noise --- high-voltage and partial discharge test --- resonant power frequency converter --- switching interference --- voltage transformer --- wind power plant --- cable line --- cable screen --- double line-to-earth fault current --- MV cable line --- metallic cable screen --- overvoltages --- computer simulation --- artificial thunderstorm cell --- lightning --- upward leader discharges --- electromagnetic radiation spectrum --- wavelet --- transmission line monitoring system --- model element --- simulation
Book
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute
Abstract | Keywords | Export | Availability | Bookmark
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- Reference Manager
- EndNote
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When it comes to dealing with high voltages or issues of high electric currents, infrastructure security and people’s safety are of paramount importance. These kinds of phenomena have dangerous consequences, therefore studies concerning the effects of lightning are crucial. The normal operation of transmission and distribution systems is greatly affected by lightning, which is one of the major causes of power interruptions: direct or nearby indirect strikes can cause flashovers in overhead transmission and distribution lines, resulting in over voltages on the line conductors. Contributions to this Special Issue have mainly focused on modelling lightning activity, investigating physical causes, and discussing and testing mathematical models for the electromagnetic fields associated with lighting phenomena. In this framework, two main topics have emerged: 1) the interaction between lightning phenomena and electrical infrastructures, such as wind turbines and overhead lines; and 2) the computation of lightning electromagnetic fields in the case of particular configuration, considering a negatively charged artificial thunderstorm or considering a complex terrain with arbitrary topography
lightning --- lightning protection system --- wind turbine blades --- ANSYS workbench --- graphics processing unit (GPU) --- OpenACC (open accelerators) --- finite difference time domain (FDTD) --- lightning magnetic fields --- electromagnetic field --- analytical formula --- corona discharge --- lightning protection --- electromagnetic pulse --- lightning-induced voltages --- numerical codes --- distribution lines --- lightning-induced overvoltages --- grounding modeling --- soil resistivity --- artificial thunderstorm cell --- upward streamer discharges --- electromagnetic radiation spectrum --- wavelet --- transmission line monitoring system --- model element --- simulation --- corona --- lightning surge --- overhead line --- transient calculation --- n/a
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