Results 11 to 20 of about 223,238 (261)

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

Digital simulation of a hybrid active filter-an active filter in series with a shunt passive filter [PDF]

open access: yesPower Quality '98, 2002
Active filters have long been in use for the filtering of power system load harmonics. In this paper, the digital simulation results of a hybrid active power filter system for a rectifier load are presented. The active filter is used for filtering higher order harmonics as the dominant harmonics are filtered by the passive filter.
Sitaram, Mahesh I   +2 more
openaire   +2 more sources

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

Active Power Filters and Power Quality

open access: yesEnergies, 2022
The transmission of electricity from the source to the load is mainly carried out using a three-phase line [...]
Marcin Maciążek
doaj   +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

Analog Filter Design: A Succinct Investigation

open access: yesAlgerian Journal of Signals and Systems, 2018
In many systems, it is essential to extract or enhance the desired information and remove the unwanted components. This is the simplest aim of signal processing where the filter turns out to be the key element.
Abdelmadjid RECIOUI   +3 more
doaj   +1 more source

Bidirectional Power Control for a Three-Phase Grid-Connected Inverter under Unbalanced Grid Conditions Using a Proportional-Resonant and a Modified Time-Domain Symmetrical Components Extraction Method

open access: yesEnergies, 2022
Discussed in this study is a bidirectional power control technique for a three-phase grid connected inverter under different unbalanced grid conditions.
Mohammad Alathamneh   +2 more
doaj   +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

Research on Oscillation Suppression Methods in Shunt Active Power Filter System

open access: yesEnergies, 2022
The shunt active power filter (SAPF) system oscillation is a massive threat to the security and stability of the power grid. This study classifies SAPF oscillation into two categories according to the difference in mechanisms. The SAPF oscillation in one
Rui Hou   +3 more
doaj   +1 more source

Three-Phase Grid-Connected Inverter Power Control under Unbalanced Grid Conditions Using a Time-Domain Symmetrical Components Extraction Method

open access: yesEnergies, 2022
Presented in this paper is a method of bidirectional real and reactive power control of a three-phase grid-connected inverter under unbalanced grid situations. Unbalanced three-phase load and unbalanced grid impedance are illustrations of unbalanced grid
Mohammad Alathamneh   +3 more
doaj   +1 more source

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