Results 11 to 20 of about 740,418 (299)

New trends in active filters for improving power quality [PDF]

open access: yes, 1995
Since their basic compensation principles were proposed around 1970, active filters have been studied by many researchers and engineers aiming to put them into practical applications.
Akagi, Hirofumi
core   +1 more source

Tunable active chirped-corrugation waveguide filters [PDF]

open access: yes, 1989
A novel tunable semiconductor waveguide reflection filter is proposed and analyzed. The filter is based on spatially selective gain pumping of a chirped-corrugation waveguide.
Mittelstein, Michael   +2 more
core   +1 more source

Active Collaborative Filtering

open access: yesCoRR, 2012
Collaborative filtering (CF) allows the preferences of multiple users to be pooled to make recommendations regarding unseen products. We consider in this paper the problem of online and interactive CF: given the current ratings associated with a user, what queries (new ratings) would most improve the quality of the recommendations made?
Craig Boutilier   +2 more
openaire   +3 more sources

Using the real-time simulator for prototyping power electronics inverter [PDF]

open access: yesArchives of Electrical Engineering, 2018
This paper deals with real-time (RT) simulators applied in power electronic applications and implemented in a real inverter. The process of preparing and starting up an active rectifier prototype (with an active filter function), using the real-time OPAL
Marcin Baszyński, Marcin Szlosek
doaj   +1 more source

Optimization of Butterworth and Bessel Filter Parameters with Improved Tree-Seed Algorithm

open access: yesBiomimetics, 2023
Filters are electrical circuits or networks that filter out unwanted signals. In these circuits, signals are permeable in a certain frequency range. Attenuation occurs in signals outside this frequency range.
Mehmet Beşkirli, Mustafa Servet Kiran
doaj   +1 more source

Analysis of Amoeba Active Contours [PDF]

open access: yes, 2014
Subject of this paper is the theoretical analysis of structure-adaptive median filter algorithms that approximate curvature-based PDEs for image filtering and segmentation. These so-called morphological amoeba filters are based on a concept introduced by
Welk, Martin
core   +1 more source

Versatile Active Biquad Using FTFNs

open access: yesActive and Passive Electronic Components, 1998
A universal active biquad using the four-terminal floating nullors (FTFNs) is presented. The propsed circuit uses two FTFNs, three capacitors and two resistors.
Muhammad Taher Abuelma'atti   +1 more
doaj   +1 more source

Harmonic compensation method using single-phase cascaded H-bridge converters

open access: yesThe Journal of Engineering, 2019
In this study, a cascaded single-phase converter topology is proposed for single-phase microgrid integrated into high-voltage power distribution systems.
Ruiqi Wang   +7 more
doaj   +1 more source

ПОКАЗНИКИ ЯКОСТІ ЕЛЕКТРОЕНЕРГІЇ ТА ЇХНЄ ПОЛІПШЕННЯ АКТИВНИМИ ФІЛЬТРАМИ

open access: yesПраці Інституту електродинаміки Національної академії наук України, 2023
This article discusses power quality and the role of active filters in improving power quality. The characteristic of this article discusses power quality and the role of active filters in improving power quality. Power quality characteristics, including
М.Ю. Артеменко   +4 more
doaj   +1 more source

Digital Current-Control Schemes [PDF]

open access: yes, 2009
The paper is about comparing the performance of digital signal processor-based current controllers for three-phase active power filters. The wide use of nonlinear loads, such as front-end rectifiers connected to the power distribution systems for dc ...
Bojoi, Iustin Radu   +3 more
core   +1 more source

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