Results 21 to 30 of about 10,256 (232)
An overview of biodiesel energy [PDF]
, 2020 Over the last ten years’ attention to biofuels production has increased dramatically and become crucial. One of the main factors is the rise in world oil prices, coupled with the abatement of greenhouse gas emissions and concerns about energy security ...
Abd Halim, Muhamad Fazli +3 more
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Partial discharge behavior under operational and anomalous conditions in HVDC systems [PDF]
, 2017 Power cables undergo various types of overstressing conditions during their operation that influence the integrity of their insulation systems. This causes accelerated ageing and might lead to their premature failure in severe cases.
Azizian Fard, M. +3 more
core +3 more sources
Energies, 2019 A SiC MOSFET is a suitable replacement for a Si MOSFET due to its lower on-state resistance, faster switching speed, and higher breakdown voltage. However, due to the parasitic parameters and the low damping in the circuit, the turn-on overcurrent and ...
Jiangui Chen, Yan Li, Mei Liang
doaj +1 more source
Analysis of Internal Overvoltages in Transformer Windings during Transients in Electrical Networks
Energies, 2020 Due to the increasing requirements for the reliability of electrical power supply and associated apparatus, it is necessary to provide a detailed analysis of the overvoltage risk of power transformer insulation systems and equipment connected to their ...
Jakub Furgał +2 more
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PI-based controller for low-power distributed inverters to maximise reactive current injection while avoiding over voltage during voltage sags [PDF]
, 2018 This paper is a postprint of a paper submitted to and accepted for publication in IET Power Electronics and is subject to Institution of Engineering and Technology Copyright.
Camacho Santiago, Antonio +4 more
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Switching transients caused by vacuum circuit breakers in collection grids of offshore wind farms
Wind Energy, 2021 In this study, transients that can occur in the collection grids of offshore wind farms were investigated. On the basis of the multiple prestrike and reignition model that can reflect the actual operation of a vacuum circuit breaker (VCB), a switching ...
Jiayuan Tao +6 more
doaj +1 more source
VICARED: A Neural Network Based System for the Detection of Electrical Disturbances in Real Time [PDF]
, 2005 The study of the quality of electric power lines is usually known as Power Quality. Power quality problems are increasingly due to a proliferation of equipment that is sensitive and polluting at the same time.
Elena Ortega, José Manuel +4 more
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Energies, 2016 During the switching on/off of shunt capacitor banks in substations, vacuum circuit breakers (VCBs) are required to switch off or to switch on the capacitive current.
Wenxia Sima +4 more
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Hybrid HVDC circuit breakers with an energy absorption branch of a parallel arrester structure
High Voltage, 2022 Hybrid circuit breakers (CBs) are the most promising technology to isolate DC faults in modular multilevel converter (MMC)‐based DC grids. However, they consist of expensive power electronic components that are sensitive to high overvoltage and ...
Jingqiu Yu +3 more
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Energies, 2023 The paper aims to analyze the parameters of prototypes of new overvoltage protection devices for power grids—a multi-chamber insulator arrester (MCA) and a long flashover arrester (LFA). The article presents the research results on determining the actual
Michał Borecki, Maciej Ciuba
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