Results 11 to 20 of about 1,208 (165)

An Alternative Methodology for Quantifying Voltage Unbalance Based on the Effects of the Temperatures and Efficiency of Induction Motors

open access: yesIEEE Access, 2022
Many unbalanced voltage conditions, which produce different effects on electric equipment, are associated with the same voltage unbalance factor. This fact hinders the precise association between the values of this index and the effects of voltage ...
Marcos D. C. Silva   +1 more
doaj   +1 more source

Performance Analysis and Modeling of SRRCCIM under the Impact of Unbalance Supply Voltage [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2021
This paper develops a mathematical model for analyzing the steady state performance of the static rotor resistance chopper control induction motor (SRRCCIM) operates under unbalance supply voltage conditions.
AMEEN Hilmi, AULA Fadhil
doaj  

Comprehensive review and a novel technique on voltage unbalance compensation

open access: yesIET Smart Grid, 2023
Voltage unbalance has gained more attention due to a rapid increase in single‐phase distributed energy resources (DERs) penetration compound with existing unbalance characteristics of low voltage distribution network.
Nattanapong Kongtrakul   +2 more
doaj   +1 more source

Voltage unbalancing reduction in a stand-alone ac-dc hybrid microgrid based on floating compensation reference [PDF]

open access: yesInternational Journal of Industrial Electronics, Control and Optimization, 2020
A hybrid AC-DC microgrid consists of an AC and a DC subgrid that are connected to each other through an interlinking converter (IC). The main function of an IC under islanded conditions is to transfer power between the two subgrids.
seyed hossein tabatabaei   +3 more
doaj   +1 more source

Angular symmetrical components-based anti-islanding method for solar photovoltaic-integrated microgrid

open access: yesAutomatika, 2023
This article examines how an innovative Angular Symmetrical Components of Voltages be applied to islanding detection and voltage unbalance factor estimation at a photovoltaic inverter-based distribution unit. Positive and Negative Sequence Components are
V. Arivumani, Sujatha Balaraman
doaj   +1 more source

Coherence‐based integrated detection and assessment algorithm for voltages and currents unbalance/disturbance in three‐phase synchronous generators: A validation of simulation results

open access: yesThe Journal of Engineering, 2023
The phenomenon of imbalance is a variation of voltage and current waveforms from a perfect sinusoidal waveform, which is considered a crucial challenge in power systems.
Ragab Abd Allah Mahmoud
doaj   +1 more source

Development of a Novel Control Scheme to Achieve the Minimum Unbalance Factor and Real Power Fluctuations under Asymmetrical Faults

open access: yesEnergies, 2023
The increasing share of converter-based renewable energy sources in the power system has forced the system operators to demand voltage support from the converters in case of faults.
Muhammad Abubakar   +2 more
doaj   +1 more source

Modeling Of Calculation Of Voltage Unbalance Factor Using Simulink (Matlab)

open access: yesThe American Journal of Engineering And Techonology, 2020
This paper presents the problem of power quality in asymmetric modes in low-voltage electrical networks. The modeling of determination of power value, voltages and currents and, accordingly, their symmetric components, using the Simulink package in the MatLab program is shown.
I.Kh. Kholiddinov   +4 more
openaire   +2 more sources

Calculation of the Voltage Unbalance Factor for High-Speed Railway Substations with V-Connection Scheme [PDF]

open access: yesElectronics, 2022
In France, high-speed railway lines are powered by a 2 × 25 kV/50 Hz electrification system. The substations include two single-phase transformers connected to the high-voltage electrical transmission network on different pairs of phases according to a so-called “V-connection scheme”.
Flumian, Didier   +2 more
openaire   +1 more source

Theoretical and Experimental Investigation of the Supply Voltage Unbalance Effects on Squirrel Cage Induction Motors

open access: yesAlgerian Journal of Signals and Systems, 2019
Voltage unbalance is one of the power quality problems causing a lot of ill effects on induction motors. These are namely: Overheating, line-current unbalance, derating, torque pulsation, and inefficiency.
Fatma Zohra DEKHANDJI, Hamid BENTARZI
doaj   +1 more source

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