Results 111 to 120 of about 2,186 (200)

Generalized one-cycle current controller for improved SAPF power quality management

open access: yesInternational Journal of Electrical Power & Energy Systems
[EN] Current controllers are used in shunt active power filters to enhance the performance of electrical power systems by improving power quality and energy efficiency. Nonlinear current controllers are preferred in systems with nonlinear and dynamic loads due to their robust and rapid tracking of varying reference currents.
S. Orts-Grau   +4 more
openaire   +2 more sources

The use of"asset swaps"by institutional investors in South Africa [PDF]

open access: yes
Leading financial economists have proposed the use of international asset swaps (Merton 1990, Bodie and Merton 2002) as a way of efficiently achieving international diversification without eroding the level of foreign exchange reserves and weakening ...
Dimitri Vittas
core  

Cholinergic neural activity directs retinal layer-specific angiogenesis and blood retinal barrier formation. [PDF]

open access: yes, 2019
Blood vessels in the central nervous system (CNS) develop unique features, but the contribution of CNS neurons to regulating those features is not fully understood. We report that inhibiting spontaneous cholinergic activity or reducing starburst amacrine
Angelopoulos, CM   +8 more
core   +1 more source

Ubicación y dimensionamiento de SAPF en redes de distribución

open access: yes
An adaptive step-based method is proposed for locating and sizing SAPFs in distribution networks. Applied to the IEEE 69-busbar system, it reduces total harmonic distortion, improves the voltage profile, and decreases losses, ensuring compliance with the IEEE-519/2022 standard.
Maguana Zhindón, Darwin Patricio   +1 more
openaire   +1 more source

Control de la tensión del bus de continua de un filtro activo mediante un convertidor DC-DC [PDF]

open access: yes, 2015
En este artículo se presentan los resultados experimentales obtenidos mediante un sistema compensador generador trabajando de forma aislada de la red eléctrica. Para analizar el funcionamiento del sistema se ha desarrollado un prototipo de un convertidor
Alfonso, j. Carlos   +6 more
core  

Smart battery charger for electric mobility in smart grids [PDF]

open access: yes, 2012
In this paper is presented the development of a smart batteries charger for Electric Vehicles (EVs) and Plug-in Hybrid Electric Vehicles (PHEVs), aiming their integration in Smart Grids.
Afonso, João L.   +2 more
core  

Analysis and stabilization for full harmonic compensation oscillation in SAPF system with source current direct control

open access: yesIET Power Electronics
Shunt active power filter (SAPF) has emerged as a promising solution for mitigating harmonic distortions. Due to the interaction between the current inner‐loop of SAPF, source impedance and non‐linear loads, harmonic oscillation issue arises and ...
Yihan Xie   +5 more
doaj   +1 more source

Grid power quality enhancement by nonlinear control of voltage source inverter

open access: yesJournal of Engineering Research and Reviews
Aim/Background: Maintaining power quality in grid-connected systems with renewable energy sources, particularly solar, is a significant challenge due to stringent requirements for harmonic mitigation. Voltage source inverters serve as critical interfaces
Muhammad imran   +4 more
doaj   +1 more source

Vatan satıcısına inen şamar [PDF]

open access: yes, 1952
Taha Toros Arşivi, Dosya No: 14-Ahmet Emin Yalman-Mustafa Vacit ...

core  

Research on main circuit parameter coupling relationship of single-phase shunt active power filter

open access: yesJournal of Measurement Science and Instrumentation, 2020
There is a certain coupling relationship among the main circuit parameters of a single-phase shunt active power filter(SAPF), which has a great influence on the reasonable selection of various parameter values. By analyzing the calculation methods of the
ZHANG Zi-qi   +3 more
doaj  

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