Results 21 to 30 of about 1,578,109 (354)
Iraqi Journal for Electrical And Electronic Engineering, 2021 In light of the widespread usage of power electronics devices, power quality (PQ) has become an increasingly essential factor. Due to nonlinear characteristics, the power electronic devices produce harmonics and consume lag current from the utility.
Ahmed Y. Qasim, F. Tahir, A. Alsammak
semanticscholar +1 more source
Multi-Mode Voltage Sag/Swell Generator Based on Three-Phase Inverter Circuit
Energies, 2021 The voltage ride through capability of the major auxiliary variable-frequency drive (VFD) in large thermal power plants is the key technical issue of power grid and source coordination.
Qiguo Han +5 more
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Electrical engineering & Electromechanics, 2022 Introduction. Power quality is a major problem in today's power system, since it may have an impact on customers and utilities. Problem. Power quality is important issue of financial consequences for utilities, their consumers and load apparatus vendors.
M. S. Shah, T. Mahmood, M. F. Ullah
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AIMS Energy, 2021 Microgrid (MG) has extensive properties to overcome common problems of local distribution system. Some of those problems are generation and demand difference, blackout and brownout, environmental concerns due to burning of natural resources in power ...
Ahsan Iqbal +5 more
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Jurnal Rekayasa Elektrika, 2023 This paper presents the proposed algorithms for the identification of Short Duration RMS Variations and Long Duration RMS Variations combined with harmonic. The proposed algorithms are Fast Fourier Transform (FFT) and Artificial Neural Network (ANN). The
Dimas Okky Anggriawan +3 more
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International Journal of Power Electronics and Drive Systems (IJPEDS), 2023 The power quality issues are raised due to sag/swell, which affects the overall performance of the grid-connected system. This study introduces the hybrid control mechanism based on a dynamic voltage restorer (DVR) to mitigate the sag and swell issues in
Sowmyashree Narayana Setty +2 more
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IEEE Access, 2021 In this article, a new solar PV fed Dynamic Voltage Restorer (DVR) based on Trans-Z-source Inverter (TransZSI) is proposed to improve the power quality of on-grid Photovoltaic (PV) systems.
Ali Moghassemi +4 more
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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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Voltage Swells Improvement in Low Voltage Network Using Dynamic Voltage Restorer [PDF]
American Journal of Applied Sciences, 2011 Problem statement: Voltage disturbances are the most common power quality problem due to the increased use of a large numbers of sophisticated electronic equipment in industrial distribution system. The voltage disturbances such as voltage sags, swells, harmonics, unbalance and flickers. High quality in the power supply is needed, since failures due to
openaire +1 more source
Power quality improvement by using non-linear sliding mode controller with the dynamic voltage restorer [PDF]
, 2021 The essential issue of the power system network is power quality. The bus voltage must be maintained as a sinusoidal waveform. Many disturbances affect the supply voltage, such as notching, transients, voltage sag/swell.
Mohammed, Ali Basim
core