Results 11 to 20 of about 75,184 (263)

Revenue Metering of Unbalanced Prosumers in Energy Communities

open access: yesIEEE Open Access Journal of Power and Energy, 2023
The presence of power generating plants owned by prosumers may lead to unbalanced bidirectional energy flows at the points of connection to the relevant distribution systems.
Jan Klusacek   +2 more
doaj   +1 more source

Inertial Bone Conduction: Symmetric and Anti-Symmetric Components [PDF]

open access: yesJournal of the Association for Research in Otolaryngology, 2011
Of the two pathways through which we hear, air conduction (AC) and bone conduction (BC), the fundamental mechanisms of the BC pathway remain poorly understood, despite their clinical significance. A finite element model of a human middle ear and cochlea was developed to gain insight into the mechanisms of BC hearing.
Namkeun, Kim, Kenji, Homma, Sunil, Puria
openaire   +2 more sources

An Approach for Assigning Responsibilities of Short-Term Voltage Variations in Electrical Power Systems

open access: yesIEEE Access, 2023
Short-term voltage variations (STVVs) are phenomena manifested as voltage sags, voltage swells, or interruptions lasting up to 1 minute. Despite their short duration, they greatly influence the operations of loads.
Adrian Ribeiro Ferreira   +3 more
doaj   +1 more source

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

Identification of interturn faults in power transformers by means of generalized symmetrical components analysis [PDF]

open access: yesE3S Web of Conferences, 2019
The paper deals with experimental identification of transformer internal faults, an important factor in reliability and sustainability of power supply systems. Task of identification of transformer internal faults requires increasing sensitivity of relay
Ivanchenko Daniil, Smirnov Artem
doaj   +1 more source

Fault-Locator Scheme for Combined Taba-Aqaba Transmission System Based on New Faulted Segment Identification Method

open access: yesIEEE Access, 2023
In this paper, a new fault locator scheme is introduced to address the non-homogeneity of combined transmission lines (Taba-Aqaba Intertie transmission system).
Mahmoud A. Elsadd   +3 more
doaj   +1 more source

Improvement of power transformer differential protection through detection and exploitation of the negative sequence currents

open access: yesElectrical engineering & Electromechanics, 2022
Introduction. Power transformers are the most important and the most expensive equipment used in transport and distribution of electrical energy. Their failure results in huge economic losses.
M. Zitouni
doaj   +1 more source

Analysis of Direct Torque Control Response to Stator and Rotor Faults in Permanent Magnet Synchronous Machines

open access: yesEnergies, 2023
Direct-torque-control-driven permanent magnet synchronous machines eliminate the need for a position sensor while providing improved torque dynamics. However, the structure, regulation principle and nature of compensation of hysteresis-based controllers ...
Ibrahim M. Allafi, Shanelle N. Foster
doaj   +1 more source

Evaluation of New Grid Codes for Converter-Based DERs From the Perspective of AC Microgrid Protection

open access: yesIEEE Access, 2022
The ever-increasing penetration levels of converter-based distributed energy resources (DERs) in medium and low voltage (MV/LV) distribution networks necessitate new and revised standards or connection requirements of generating units. These standardized
Aushiq Ali Memon   +2 more
doaj   +1 more source

Short-Circuit Calculation in Distribution Networks with Distributed Induction Generators

open access: yesEnergies, 2016
This paper presents an improved current source equivalent model method to determine the short-circuit current of a distribution system with multiple fixed-speed and variable-speed induction generators (IGs).
Niancheng Zhou   +4 more
doaj   +1 more source

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