Results 41 to 50 of about 263,888 (208)
A multifunctional dynamic voltage restorer for power quality improvement [PDF]
, 2018 Power quality is a major concern in electrical power systems. The power quality disturbances such as sags, swells, harmonic distortion and other interruptions have an impact on the electrical devices and machines and in severe cases can cause serious ...
Dung, Vo Tien +2 more
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Flexible control for power‐sharing in the CHB‐based SST under voltage unbalance conditions
IET Power Electronics, 2021 Solid‐state transformers (SSTs) have flexible capabilities to improve the power quality issues. These improvements impose disturbances into the SST converters that require proper control algorithms. In this paper, the problems of the unequal active power
Mehdi Babaei, Reza Ghandehari
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International Journal of Electrical Power & Energy SystemsThe increased demand for renewable energy and electrification of transportation such as electric vehicles can lead to power quality problems in the low voltage distribution grids.
Dimitar V. Bozalakov +3 more
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Вестник Северо-Кавказского федерального университета, 2022 The article presents a technique for assessment the level of consumers’ impact on the voltage asymmetry by the zero sequence at the point of common connection. The results of a computational experiment that determine the possibility of using the level of
Dmitrii Kostyukov
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Improved natural balancing with modified phase shifted PWM for single-leg five-level flying-capacitor converters [PDF]
, 2012 Flying capacitor converters (FCCs), as most multilevel converter topologies, require a balancing mechanism of the capacitor voltages. FCCs have the valuable property of natural voltage balancing when a special modulation technique is used.
Melkebeek, Jan +3 more
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IET Power ElectronicsThis paper focuses on maintaining the optimal common mode voltage of the existing zero common mode voltage (ZCMV) method while reducing its large zero‐sequence circulating current.
Jing Feng, Xiaoliang Jin
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A voltage detection method based on dq transformation and symmetric component method
Gong-kuang zidonghua, 2018 In view of problem that fault type and phase of asymmetric voltage sag could not be quickly identified by traditional voltage sag detection algorithm, a voltage detection method based on dq transformation and symmetric component method was proposed ...
WANG Jianyu
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, 2006 Magnetic tunnel junctions with the layer sequence Co$_2$Cr$_{0.6}$Fe$_{0.4}$Al/MgO/CoFe were fabricated by magnetron sputtering at room temperature (RT).
Braak, H. +3 more
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An Integral Battery Charger with Power Factor Correction for Electric Scooter [PDF]
, 2009 This paper presents an integral battery charger for an electric scooter with high voltage batteries and interior-permanent-magnet motor traction drive.
Armando, Eric Giacomo +2 more
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Unbalanced Current Sharing Control in Islanded Low Voltage Microgrids
Energies, 2018 This paper reports a new control strategy to improve sharing of unbalanced currents in islanded LV microgrids. This technique provides fast and effective sharing of positive-, negative- and zero-sequence currents, and is the first example of zero ...
Foad Najafi +2 more
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