Results 1 to 10 of about 12,015,384 (327)

Earth Fault Location Using Negative Sequence Currents [PDF]

open access: yesEnergies, 2019
In this paper, a new method for locating single-phase earth faults on non-effectively earthed medium voltage distribution networks is proposed. The method requires only current measurements and is based on the analysis of the negative sequence components
Amir Farughian   +2 more
doaj   +5 more sources

Influence of Negative Sequence Injection Strategies on Faulted Phase Selector Performance

open access: yesEnergies, 2022
Renewable power is expected to increase drastically in the coming years due to the energy transition. A large part of the newly installed generators will be connected to the power system through inverters and electronic converters, whose behaviour ...
María Teresa Villén   +3 more
doaj   +2 more sources

Negative affect reduces performance in implicit sequence learning. [PDF]

open access: yesPLoS ONE, 2013
BACKGROUND: It is well documented that positive rather than negative moods encourage integrative processing of conscious information. However, the extent to which implicit or unconscious learning can be influenced by affective states remains unclear ...
Junchen Shang   +4 more
doaj   +4 more sources

A New Protection Strategy Based on Negative Sequence Current Coordinated Control on the Generator Extremity

open access: yesIEEE Access, 2020
When the single-phase reclosing of the high-voltage circuit, there will be tremendous negative sequence current generation. The connection of inverter-type new energy sources may increase the negative sequence current of the power system.
Zhenxing Li   +4 more
doaj   +2 more sources

The Performance of a Three-Phase Induction Motor under and over Unbalance Voltage [PDF]

open access: yesTikrit Journal of Engineering Sciences, 2021
Voltage unbalance is an adverse global phenomenon impacting three-phase induction motor output. Three-phase source voltage may become imbalanced in a variety of respects, while a balanced system preserves stable voltage magnitude and angles in ...
Abdulsatar H. Jassim   +2 more
doaj   +1 more source

Model development for the analysis of reducing voltage asymmetry methods in power supply systems

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2022
THE PURPOSE. To consider the issues of ensuring the quality of electricity in power supply systems. Show that the quality of electrical energy during the operation of power supply systems in certain cases may be violated, including due to uneven loading ...
V. I. Biryulin, D. V. Kudelina
doaj   +1 more source

Interturn Short Fault Detection and Location of Permanent Magnet Wind Generator Based on Negative Sequence Current Residuals

open access: yesEnergies, 2022
This article proposes a model-based method for the detection and phase location of interturn short fault (ISF) in the permanent magnet synchronous generator (PMSG).
Tonghua Wu   +5 more
doaj   +1 more source

Sequence Control Strategy for Grid-Forming Voltage Source Converters Based on the Virtual-Flux Orientation under Balanced and Unbalanced Faults

open access: yesEnergies, 2023
Renewable power generation has increased in recent years, which has led to a decrease in the use of synchronous generators (SGs). These power plants are mainly connected to the power system through electronic converters.
Juan Dolado Fernández   +3 more
doaj   +1 more source

Impact of Inverter-Based Resources on Negative Sequence Quantities-Based Protection Elements

open access: yesIEEE Transactions on Power Delivery, 2021
Inverter-Based Resources (IBRs), including Wind turbine generators (WTGs), exhibit substantially different negative-sequence fault current characteristics compared to synchronous generators (SGs).
A. Haddadi   +5 more
semanticscholar   +1 more source

Online Course Recommendation Using Deep Convolutional Neural Network with Negative Sequence Mining

open access: yesWireless Communications and Mobile Computing, 2022
Massive Open Online Course (MOOC) has been criticized for low completion rates, and one of the major reasons is that it fails to offer personalized course recommendations for different users with different demands.
Ming Gao, Yonggang Luo, Xiaonan Hu
semanticscholar   +1 more source

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