Results 11 to 20 of about 50,402 (304)

A Shared Energy Storage Optimal Operation Method Considering the Risk of Probabilistic Voltage Unbalance Factor Limit Violation

open access: yesShanghai Jiaotong Daxue xuebao, 2022
The distributed access with single-phase and uncertain generation of the renewable energy increase the risk of voltage unbalance limit violation in the distribution network.
FANG Xiaotao, YAN Zheng, WANG Han, XU Xiaoyuan, CHEN Yue
doaj   +1 more source

Bi-Level Phase Load Balancing Methodology with Clustering-Based Consumers’ Selection Criterion for Switching Device Placement in Low Voltage Distribution Networks

open access: yesMathematics, 2021
In the last years, the distribution network operators (DNOs) assumed transition strategies of the electric distribution networks (EDNs) towards the active areas of the microgrids where, regardless of the operating regimes, flexibility, economic ...
Gheorghe Grigoraș   +4 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  

Research on Spatial Unbalance and Influencing Factors of Ecological Well-Being Performance in China [PDF]

open access: yesInternational Journal of Environmental Research and Public Health, 2021
Ecological well-being performance (EWP) is central to achieving coordinated and sustainable economic and social development and environmental protection. This study constructed an evaluation index system of EWP, measured the EWP of 30 Chinese provinces or cities from 1997 to 2018 using the super-efficiency slack-based model (Super-SBM), and analyzed ...
Shengyun Wang, Yaxin Zhang, Xingren Yao
openaire   +2 more sources

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

New Smart Sensor for Voltage Unbalance Measurements in Electrical Power Systems

open access: yesSensors, 2022
This paper deals with voltage unbalances and how they can be quantified according to the standards. Firstly, a comparison between the different unbalance voltage factors is conducted in order to remark on their divergences.
Santiago Bogarra   +2 more
doaj   +1 more source

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

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

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

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

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