Results 21 to 30 of about 2,515,031 (212)

Voltage-programmable liquid optical interface [PDF]

open access: yes, 2009
Recently, there has been intense interest in photonic devices based on microfluidics, including displays and refractive tunable microlenses and optical beamsteerers, that work using the principle of electrowetting.
G. G. Wells   +11 more
core   +1 more source

Performance enhancement of radial distribution system using simultaneous network reconfiguration and switched capacitor bank placement

open access: yesCogent Engineering, 2021
This paper presents simultaneous radial distribution network reconfiguration and switched capacitor bank allocation to enhance the performance of distribution systems.
Yalew Gebru   +3 more
doaj   +1 more source

Voltage Profile Analysis on a Grid with Power Injection from a Wind Farm

open access: yesEnergies, 2021
Wind power penetration into the grid is increasing throughout the world due to centralized power generation constraints such as shortage of fossil fuel, need to reduce gas emissions, long transmission losses and need for more supply of electrical power ...
Noah Serem   +2 more
doaj   +1 more source

Effectiveness of reactive power capability of photo voltaic inverters to maintain voltage profile in a residential distribution feeder [PDF]

open access: yes, 2013
Large penetration of rooftop PVs has resulted in unacceptable voltage profile in many residential distribution feeders. Limiting real power injection from PVs to alleviate over voltage problem is not feasible due to loss of green power and hence ...
Kabir, M. N.   +3 more
core   +1 more source

An Efficient Mathematical Model for Distribution System Reconfiguration Using AMPL

open access: yesIEEE Access, 2021
Distribution network is an essential part of electric power system, which however has higher power losses than transmission system. Distribution losses directly affect the operational cost of the system.
Meisam Mahdavi   +3 more
doaj   +1 more source

Optimal Sizing and Placement of Series Capacitors in Distribution Networks Using Modified Elephant Herding Optimization Algorithm [PDF]

open access: yesJournal of Applied Research in Electrical Engineering, 2023
The optimal size and location of series capacitors is a critical challenge in a distribution network. In this paper, a novel approach for enhancing voltage stability in distribution networks through the optimal sizing and placement of series capacitors ...
Elvis Twumasi   +2 more
doaj   +1 more source

Molecular mechanisms of the coupling of gating to voltage sensing in transmembrane proteins [PDF]

open access: yes, 2014
Voltage gated potassium ion (Kv) channels regulate action potentials of the nervous system by responding to changes in transmembrane voltage, enabling K+ transport across the membrane to restore cells to their resting potential.
Starek, Greg
core   +1 more source

Coordinating voltage regulation for an AC–DC hybrid distribution network with multiple SSTs

open access: yesThe Journal of Engineering, 2019
The increasing penetration of renewable generation and large implementation of the DC loads are challenges that stress the current distribution systems by causing uncertain voltage variations.
Xianglong Liu   +3 more
doaj   +1 more source

A novel solution for the optimal reactive power dispatch problem using an artificial neural network integrated with the firefly optimization algorithm

open access: yesFrontiers in Energy Research, 2023
This article applies a novel intelligence technique to solve power system issues faced daily. Compensation for reactive power is a significant issue faced by power system operators in research.
S. Jaisiva   +7 more
doaj   +1 more source

Multi-Objective Function Optimization for Locating and Sizing of Distributed ‎Generation Sources in Radial Distribution Networks with Fuse and Recloser ‎Protection [PDF]

open access: yesJournal of Operation and Automation in Power Engineering, 2021
Power quality, reliability, loss reduction, and fault clearing times are essential factors in distribution networks. Radial distribution networks often face two problems, line losses and voltage drop at the end of the grid.
S. Ghobadpour, M. Gandomkar, J. Nikoukar
doaj   +1 more source

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