Results 1 to 10 of about 256 (125)
Overvoltage Protection for High Frequency High Voltage Power Transformers [PDF]
Eletrônica de Potência, 2019 Transformers with high-voltage operation may have undesired behavior due to the effects of their parasitic elements. In power electronics applications, if the primary voltage has harmonics, transformer resonances may be excited, causing high primary ...
Diego Teruo Mendes de Souza +2 more
doaj +2 more sources
Internal Overvoltage Identification of Distribution Network via Time-Frequency Atomic Decomposition
IEEE Access, 2019 Internal overvoltage accidents in the distribution network are likely to cause an equipment insulation breakdown and result in system power outages and economic losses.
Wei Gao +4 more
doaj +3 more sources
Energies, 2020 Harmonic overvoltage in electric railway traction networks can pose a serious threat to the safe and stable operation of the traction power supply system (TPSS).
Qiujiang Liu +4 more
doaj +3 more sources
High Voltage, EarlyView.ABSTRACT This paper investigates the generation mechanism of quasi‐power‐frequency resonant overvoltage triggered by multiple lightning strikes in high‐voltage alternating current (HVAC) systems equipped with shunt reactors. Based on field measurements from a 500 kV AC system, equivalent and simplified circuit models have been established to analyse ...
Tao Liang +7 more
wiley +2 more sources
Simulation and Experimental Research on Overvoltage Measurement of Hybrid CVT [PDF]
E3S Web of Conferences, 2021 The CVT equipment running on site is slightly modified to form a hybrid CVT to achieve transient overvoltage measurement, which is theoretically feasible and practical.
Nie Yu +3 more
doaj +1 more source
IEEE Access, 2021 The emergence of fast-switching wide-bandgap (GaN, SiC) power electronics devices has enabled motor drive systems to achieve high efficiency, power density, control bandwidth and high-level of integration.
Yipu Xu +6 more
doaj +1 more source
Energies, 2022 High-order harmonics in the traction power supply show negative effects on the safe and stable operation of the railway transportation system. There is a fixed resonant frequency in the traction network.
Miaoxin Jin +5 more
doaj +1 more source
High-Frequency Modeling and Filter Design for PWM Drives with Long Cables
Energies, 2021 Aiming at the problems emerging in a pulse width modulation (PWM) drive system with long cables, the accurate modeling of power cables is the premise for predicting and analyzing these relevant phenomena, and a proper filter design is the key solution to
Lei Wang +5 more
doaj +1 more source
Machines, 2023 With the development of the photovoltaic industry; there will be an increasing demand for efficient, high-power density, and low-cost grid interface converters.
Jian Yu +4 more
doaj +1 more source
Energy Reports, 2022 Since the Electromagnetic Transient (EMT) process of the high-voltage submarine cable has a great influence on the safe and stable operation of the transmission system, it is necessary to analyze its EMT process under actual engineering.
Han Li +3 more
doaj +1 more source