Results 81 to 90 of about 35,570 (292)

Comparison of different optimization criteria for optimal sizing of hybrid active power filters parameters [PDF]

open access: yes, 2014
Praise Worthy Prize granted a permission for Brunel University London to archive this article in BURA.Harmonic distortion in power systems has increased considerably due to the increasing use of nonlinear loads in industrial firms and elsewhere.
Elmathana, KTM, Zobaa, AF
core   +1 more source

Resilient Calvarial Bone Marrow Supports Retinal Repair in Type 2 Diabetes

open access: yesAdvanced Science, EarlyView.
Skull bone (calvarium) marrow in diabetic mice stay structurally intact and keeps making blood cells, unlike the bone marrow of the leg bones. The skull marrow is exposed to cerebrospinal fluid (CSF), which contains protective molecules called oxysterols.
Bright Asare‐Bediako   +16 more
wiley   +1 more source

AN ADAPTIVE HARMONIC COMPENSATION STRATEGY FOR THREE-PHASE SHUNT ACTIVE POWER FILTER BASED ON DOUBLE SECOND-ORDER GENERALIZED INTEGRATOR WITH PREFILTER

open access: yesElectrical engineering & Electromechanics, 2020
. This study presents a straightforward adaptive prefiltering algorithm based on a double second-order generalized integrator with prefilter to solve one of the power quality issues, this algorithm is in charge of the determination of the reference ...
S. Kalkoul   +3 more
doaj   +1 more source

Control of a three-phase four-wire shunt-active power filter based on DC-bus energy regulation [PDF]

open access: yes, 2008
This paper presents a nonconventional three-phase four-wire shunt active power filter (APF) topology controlled by using an energy approach. A general study of power terms involved in the operation of the four-wire APF is conducted in order to evidence ...
Blaabjerg, Frede   +4 more
core   +2 more sources

A grid current-controlling shunt active power filter [PDF]

open access: yes2007 7th Internatonal Conference on Power Electronics, 2007
In this paper, the implementation of a three-phase shunt active power filter is presented. The filter is essentially three independent single-phase current-controlled voltage source inverters (CC-VSI) with a common DC bus. The CC- VSI is operated to directly control the AC grid current to be sinusoidal and in phase with the grid voltage.
Tumbelaka, Hanny Hosiana   +3 more
openaire   +1 more source

Beyond Silicon: Toward Sustainable, NIR‐II, and Conformable Organic Photodiodes

open access: yesAdvanced Energy Materials, EarlyView.
In this perspective, a strategic shift in organic photodetector (OPD) research is proposed: instead of the incremental advances in silicon's stronghold arena, the most impactful future for OPDs lies in addressing silicon's intrinsic limitations, i.e., detection in the longer wavelength range above silicon's coverage (>1100 nm, termed as near infrared ...
Hrisheekesh Thachoth Chandran   +7 more
wiley   +1 more source

Enhanced FPGA-Based Controller for Three Phase Shunt Active Power Filter

open access: yesPower Electronics and Drives, 2023
In this paper, a three-phase shunt active power filter (SAPF) controller with a fully digital implementation is presented. The main goal of this contribution is to implement a digital direct power control (DDPC) algorithm without phase-locked-loop (PLL ...
Benhamadouche Abdelouahab Djoubair   +4 more
doaj   +1 more source

Unified architecture of single-phase active power filter with battery interface for UPS operation [PDF]

open access: yes, 2017
This paper presents a shunt active power filter with battery interface for uninterruptible power supply (UPS) operation. The proposed unified architecture is composed by a single-phase ac-dc converter from the power grid side and by a bidirectional ...
Afonso, José A.   +4 more
core  

Optimal sizing of C-type passive filters under non-sinusoidal conditions [PDF]

open access: yes, 2014
In the literature, much attention has been focused on power system harmonics. One of its important effects is degradation of the load power factor. In this article, a C-type filter is used for reducing harmonic distortion, improving system performance ...
Dugan R. C.   +4 more
core   +2 more sources

Device Performance of Emerging Photovoltaic Materials (Version 6)

open access: yesAdvanced Energy Materials, EarlyView.
Efficiency of single junction perovskite (circles), organic (hexagons), dye sensitized (pentagons), kesterite (diamonds), Sb2Se3 (right triangle), and AgBiS2 (left triangles) solar cells at emerging‐pv.org over the last decade. ABSTRACT This 6th annual Emerging PV Report surveys peer‐reviewed advances since August 2024 across perovskite, organic ...
Osbel Almora   +29 more
wiley   +1 more source

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