Results 1 to 10 of about 9,627 (164)

Impacts of Grid Voltage Harmonics Amplitude and Phase Angle Values on Power Converters in Distribution Networks

open access: yesIEEE Access, 2021
Motor drive systems based on diode-rectifier are utilised in many industrial and commercial applications due to their cost-effectiveness and simple topology.
Abdulrahman Alduraibi   +2 more
doaj   +3 more sources

Waveform Variation Defined Model for Harmonic Current Emissions Including Cross-Order Supply Voltage Harmonics Influence

open access: yesIEEE Access, 2023
The paper reports an experimental non-linear load evaluation regarding current harmonics sensitivity to supply voltage harmonics. A base for the model is proposed relying on the time-domain waveform variations, rather than impedance or conductance ...
Kamran Daniel   +5 more
doaj   +3 more sources

Simulation-based analysis of dynamic voltage restorer with sliding mode controller at optimal voltage for power quality enhancement in distribution system

open access: yesElectrical engineering & Electromechanics, 2022
Introduction. Nowadays, power quality issues are of considerable interest to both utilities and end users as they cause significant financial losses to the industrial customers.
S. T. Zahra   +4 more
doaj   +1 more source

Power System Distortion Mitigation by Using Series Active Power Filter [PDF]

open access: yesInternational Journal of Industry and Sustainable Development, 2020
The power quality improvement faces different significant problems due to the wide use of power electronics and voltage instability. To overcome these different power quality problems, an active power filter is used.
Muhammad Mahmoud   +2 more
doaj   +1 more source

Measurements and Analysis of Partial Discharges at HVDC Voltage with AC Components

open access: yesEnergies, 2022
This paper presents the methodology for phase-resolved partial discharge measurements in HVDC systems with a DC voltage containing trace AC harmonics or a DC voltage ripple.
Marek Florkowski   +2 more
doaj   +1 more source

Harmonics Detection and its Mitigation in a Doubly Fed Induction Generator based Power System

open access: yesPakistan Journal of Engineering & Technology, 2020
Ideally, electric supplying companies are projected to convey sinusoidal voltage having the frequency of constant rate, while the consumers are expected to extract the current in sinusoidal forms with power factor nearly equal to unity.
Muhammad Kashif   +5 more
doaj   +5 more sources

Power Quality Analysis of the Output Voltage of AC Voltage and Frequency Controllers Realized with Various Voltage Control Techniques

open access: yesApplied Sciences, 2021
Single-phase and three-phase AC-AC converters are employed in variable speed drive, induction heating systems, and grid voltage compensation. They are direct frequency and voltage controllers having no intermediate power conversion stage.
Naveed Ashraf   +3 more
doaj   +1 more source

Experimental Analysis on Influences of Harmonic Voltage at High-Voltage Network on Harmonic Current at Medium-Voltage Network [PDF]

open access: yesJournal of International Council on Electrical Engineering, 2012
In this paper, we describe how harmonic voltage in transmission networks influences harmonic currents in distribution networks. In the conventional equivalent circuit for harmonic analysis based on computer simulations, harmonic currents in distribution networks were regarded as a constant harmonic current source.
Junichi Inagaki, Yasuhiro Hayashi
openaire   +1 more source

The Impact of Geomagnetically Produced Negative-Sequence Harmonics on Power Transformers

open access: yesIEEE Access, 2021
Geomagnetically induced currents (GICs), although small in magnitude, can inflict detrimental effects on power systems. GICs damage transformers, generate unusual harmonics, trip reactive power support equipment, cause protective relays to malfunction ...
Ahmed Abuhussein   +1 more
doaj   +1 more source

Model-Based Spatial Harmonics Vector Compensation Method for Three-Phase Mutually Coupled Switched Reluctance Machine With Sinusoidal Current Excitation

open access: yesIEEE Open Journal of Power Electronics, 2020
This paper presents a spatial harmonics compensation method for mutually coupled switched reluctance machines (MCSRMs) with sinusoidal current excitation. The regulation by linear controllers to achieve sinusoidal currents in MCSRMs is challenging due to
Peter Azer   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy