Results 51 to 60 of about 142,243 (267)

PFPD_MCA: A Multiconductor Power Flow

open access: yesIEEE Access
In this paper, the multiconductor extension of the previously developed three-phase power flow algorithm (named PFPD_3P) is presented. This multiconductor formulation has a general validity for both distribution and transmission networks.
Luca Rusalen, Roberto Benato
doaj   +1 more source

A Novel Design of Radio Frequency Energy Relays on Power Transmission Lines

open access: yesEnergies, 2016
In this paper, we investigate the energy problem of monitoring sensors on high-voltage power transmission lines and propose a wireless charging scheme for a Radio Frequency IDentification (RFID) sensor tag to solve a commercial efficiency problem: the ...
Jin Tong   +4 more
doaj   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Power Flow Optimization Strategy for Regional Grid Transmission Corridors with Embedded HVDC

open access: yesInternational Journal of Electrical Power & Energy Systems
This paper conducts a detailed simulation analysis on the feasibility, effectiveness and necessity of Embedded HVDC participating in power flow optimization regulation through PSCAD/EMTDC, and establishes an optimization model framework considering the ...
Zhou Li   +3 more
doaj   +1 more source

Transmission Lines Availability Online Assessment During Power System Restoration Using the Information From Protection Systems

open access: yesIEEE Access, 2019
Power system restoration after outages caused by natural disasters is difficult owing to the damage caused to transmission lines. To formulate an effective power system restoration scheme and avoid damage to power equipment, it is necessary to obtain the
Zaibin Jiao, Yifei Wang, Yanjie Hu
doaj   +1 more source

REAL-TIME MONITORING SYSTEM FOR OVERHEAD POWER TRANSMISSION LINES

open access: yesМодели, системы, сети в экономике, технике, природе и обществе, 2022
Background. The issue of ensuring uninterrupted power supply to consumers, which directly depends on the reliable operation of overhead power transmission lines, is being considered.
V.A. Listyukhin, E.A. Pecherskaya
doaj   +1 more source

Adaptive Autoreclosing Scheme for Line-to-Line Nongrounded Faults on Double-Circuit Transmission Lines Based on Phase-to-Phase Reactive Power

open access: yesIEEE Access, 2020
Double-circuit transmission lines play a very important role in electric power transmission. When a line-to-line nongrounded fault occurs on double-circuit transmission lines, for traditional tripping and reclosing methods, tripping of all six phases may
Weiji Zhou   +5 more
doaj   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

open access: yesAdvanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa   +9 more
wiley   +1 more source

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