Results 1 to 10 of about 1,751 (55)

Optimization of multi-period investment planning in street lighting systems by mixed-integer linear programming

open access: yesInternational Journal for Simulation and Multidisciplinary Design Optimization, 2023
This article proposed the use of multi-period mixed-integer linear programming method for investment planning to support decision-making processes in upgrading and managing street lighting systems.
Rodríguez Cristhian C.   +3 more
doaj   +1 more source

Determination of the Thevenin equivalent in power grids using real records based on short circuit power

open access: yesIET Generation, Transmission & Distribution, 2021
In recent years, methods for loadability determination based on real‐time measurements have been proposed for long‐term voltage stability scenarios. One of these methods corresponds to the reduction of the complete system into a basic Thevenin equivalent
A. Fonseca   +3 more
doaj   +1 more source

State-of-the-Art Using Bibliometric Analysis of Wind-Speed and -Power Forecasting Methods Applied in Power Systems

open access: yesEnergies, 2022
The integration of wind energy into power systems has intensified as a result of the urgency for global energy transition. This requires more accurate forecasting techniques that can capture the variability of the wind resource to achieve better ...
Ana Lagos   +6 more
doaj   +1 more source

Impact of power flow on the apparent impedance calculated by the distance protection in transmission lines

open access: yesIET Generation, Transmission & Distribution, 2023
The reach of primary protection zones of transmission lines distance relays is affected when large power flows circulate through the transmission line prior to a short circuit occurrence.
Fonseca Leonardo   +4 more
doaj   +1 more source

Parámetros del dominio de la frecuencia de pulsos de descargas parciales (DP), para la construcción de mapas de clasificación que permitan la separación de fuentes de DP, en mediciones en línea

open access: yesTecnología y Ciencia, 2022
En este trabajo se estudian las características en el dominio de la frecuencia de pulsos de Descargas Parciales (DP), con el objeto de conformar mapas de clasificación que permitan separar distintas fuentes de pulsos.
Damián Verna   +4 more
doaj   +1 more source

Efectos del cambio de la legislación eléctrica durante 1996 a 2020

open access: yesAdvocatus, 2022
El presente trabajo de investigación corresponde al estudio de la situación del sector eléctrico en Guatemala como resultado al cambio de legislación a causa de la sanción de la Ley General de Electricidad, para lo cual se usa en enfoque cualitativo ...
Edgar Estuardo Pérez Barrios   +1 more
doaj   +1 more source

Solar energy production forecasting through artificial neuronal networks, considering the Föhn, north and south winds in San Juan, Argentina

open access: yesThe Journal of Engineering, 2019
This study presents a method to predict a day-ahead solar irradiation curve, under extreme meteorological phenomena (Föhn, north and south winds), existing in the province of San Juan, Argentina.
Luis Carlos Parra Raffán   +2 more
doaj   +1 more source

Combined control of a flywheel energy storage system and a vanadium redox flow battery for wind energy applications in microgrids

open access: yesDyna, 2017
The incorporation of wind generation in microgrids is growing progressively. This integration can introduce problems in the dynamics and power quality of the electrical system due to the wind fluctuations.
Gaston Orlando Suvire   +2 more
doaj   +1 more source

Evaluación de la pérdida de vida del aislamiento solido en transformadores de potencia, estimando la historia de carga y los perfiles de temperatura ambiente por medio de redes neuronales artificiales y simulaciones de Monte Carlo

open access: yesDyna, 2016
La estimación de la pérdida de vida es útil para la gestión de transformadores de potencia. Un método, no invasivo, es estimar la edad funcional del papel aislante del transformador, mediante las guías de carga.
Andrés Arturo Romero Quete   +2 more
doaj   +1 more source

Impact of volcanic ash from Cotopaxi-2015 and Tungurahua-2016 eruptions on the dielectric characteristics of suspension insulators, Ecuador

open access: yesJournal of Applied Volcanology, 2022
In Ecuador, a country with several active volcanoes and with four eruptions in the last decade in the continental arc, it is very likely that high-voltage transmission lines cross volcanic hazard zones on their routes.
Juan Ramírez   +7 more
doaj   +1 more source

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