Results 21 to 30 of about 1,060 (162)
Engineering Proceedings, 2023 This research paper addresses the issue of enhancing the operational availability of NPC three-level converter-based high-voltage direct current (HVDC) transport systems during alternating current (AC) grid fault conditions.
Ilyass El Myasse +3 more
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New factor for voltage sags characterization
Revista Facultad de Ingeniería Universidad de Antioquia, 2012 A new factor which allows characterizing voltage sags in an individual way is presented in this paper. The factor acts revises and identifies voltage sags in a univocal way.
Edwin García Quintero +2 more
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More stability and robustness with the multi-loop control solution for dynamic voltage restorer (DVR) [PDF]
Serbian Journal of Electrical Engineering, 2009 This paper presents the application of dynamic voltage restorers (DVR) on power distribution systems for mitigation of voltage sags/swells at critical loads. DVR is one of the compensating types of custom power devices.
Abdelkhalek Othmane +4 more
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Dual 3-Phase Bridge Multilevel Inverters for AC Drives with Voltage Sag Ride-through Capability
Energies, 2019 One of the main power quality issues that can affect variable speed drives (VSDs) is the occurrence of voltage sags on their AC power supply. Voltage sags can affect the inverter nominal operation, leading to a malfunction of the AC motor.
Vitor Fernão Pires +2 more
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The influence of motor reacceleration on voltage sags [PDF]
IEEE Transactions on Industry Applications, 1995 The assumption that a voltage sag is rectangular is not correct in a power system with large induction motor loads. The motors decelerate during the short circuit. After fault-clearing, they will accelerate again, drawing a high reactive current from the supply, causing a prolonged postfault voltage sag. This is aggravated by the removal of branches by
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Eletrônica de Potência, 2021 In this paper, a wind energy conversion system based on doubly-fed induction generator with an additional series grid side converter without transformer is proposed.
Ítalo A. Cavalcanti de Oliveira +2 more
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Fast Transient Hybrid Neuro Fuzzy Controller for STATCOM During Unbalanced Voltage Sags [PDF]
AUT Journal of Electrical Engineering, 2018 A static synchronous compensator (STATCOM) is generally used to regulate voltage and improve transient stability in transmission and distribution networks. This is achieved by controlling reactive power exchange between STATCOM and the grid.
R. Zaheri Abdevand +3 more
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A Voltage Sag Pattern Classification Technique [PDF]
, 2005 This paper presents an investigation on pattern classification techniques applied to voltage sag monitoring data. Similar pattern groups or sets of classes, resulting from a voltage sag classification, represent disturbance categories that may be used as indexes for a cause/effect disturbance analysis.
Délio E. B. Fernandes +2 more
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Eletrônica de Potência, 2019 Wind turbines are widespread around the globe, and the number of windfarms connected to the grid is continually increasing. The Doubly-Fed Induction Generator (DFIG) plays an important role, since it is one of the most used configurations for wind power
Joacillo L. Dantas +4 more
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Energy Conversion and Economics, 2022 Voltage sags flickers, and harmonics are major problems associated with power quality and are of concern to power companies and consumers. Therefore, efforts to improve power quality have increased. This study explores the dynamic performance of a static
Mohammed Redha Qader
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