Results 11 to 20 of about 1,208 (165)
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
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Performance Analysis and Modeling of SRRCCIM under the Impact of Unbalance Supply Voltage [PDF]
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
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
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Voltage unbalancing reduction in a stand-alone ac-dc hybrid microgrid based on floating compensation reference [PDF]
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
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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
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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
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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
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Modeling Of Calculation Of Voltage Unbalance Factor Using Simulink (Matlab)
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
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Calculation of the Voltage Unbalance Factor for High-Speed Railway Substations with V-Connection Scheme [PDF]
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
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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
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