Results 21 to 30 of about 8,292,116 (301)

Hybrid Filters To Damp Harmonic Resonance In Power Transmission Systems

open access: yesEletrônica de Potência, 2006
Problems related to harmonic propagation in transmission systems have been noticed in the last years. Passive filters, commonly used to attenuate noncharacteristic harmonics in HVDC systems, stay at risk of disconnection from the system due to ...
Lucas F. Encarnação   +4 more
doaj   +1 more source

Frequency-domain Analysis Of Resonant Current Controllers For Active Power Filters

open access: yesEletrônica de Potência, 2010
This paper performs a frequency-domain analysis of three different resonant current controllers for active power filters. Respect to previous papers, the novelty consists of a stability analysis of the closed loop system using the Nyquist criterion.
Leonardo Rodrigues Limongi   +3 more
doaj   +1 more source

Genetic and combinatorial algorithms for optimal sizing and placement of active power filters

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2015
The paper deals with cost effective compensator placement and sizing. It becomes one of the most important problems in contemporary electrical networks, in which voltage and current waveform distortions increase year-by-year reaching or even exceeding ...
Maciążek Marcin   +2 more
doaj   +1 more source

Dual-Converter Active Power Filter with Reduced Dynamic Losses: Control Synthesis and Modelin

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2022
Nowadays, active power filters represent one of the most efficient means to reduce inactive power components which provides proper quality of electricity at common network connectivity points.
A. V. Belousov   +2 more
doaj   +1 more source

An optimization approach to determining the power of active filters [PDF]

open access: yesE3S Web of Conferences, 2020
The coal grading plants in Vietnam extensively apply asynchronous motors with frequency control. They consume reactive power and non-sinusoidal current from the supply network.
Kovernikova Lidiia I.   +3 more
doaj   +1 more source

Is It Possible to Obtain Benefits by Reducing the Contribution of the Digital Signal Processing Techniques to the Control of the Active Power Filter?

open access: yesEnergies, 2021
This paper presents a simple yet efficient control method for active power filters that can be used to improve power quality. Applying this method can open the way towards limiting the hardware and computational expenditure, which are needed for control ...
Andrzej Szromba
doaj   +1 more source

Application of Active Filters in Power Systems

open access: yes, 2021
This paper is intended to show how current harmonics are generated by some nonlinear loads, and how these harmonics can be suppressed. Majority of loads such as induction motors, battery chargers, static converters, light fittings, arc furnaces ...
Ezema, E.E., Onah, A.J., Uzodife N.A.
core   +1 more source

Design and Implementation of a Shunt Active Power Filter for Enhancing Power Quality [PDF]

open access: yesJournal of Intelligent Procedures in Electrical Technology, 2011
This paper presents analysis of active power filters for enhancing power quality of industrial systems in presence of harmonical pollutions. Shunt active power filters proposed for improving power factor, the method of extracting the reference current is
Mehdi Mahdavian, Masoud Jabbari
doaj  

High-Voltage High-Capacity Active Filter Technology for High Voltage DC Converter Station [PDF]

open access: yesDianli jianshe
[Objective] High-voltage direct current transmission technology is a core technical method for optimizing resource allocation in China. Traditional high-voltage direct-current transmission technology has many drawbacks, such as a large footprint and ...
WANG Ling, MA Weimin, JI Yiming, LI Ming, WU Fangjie, XU Ying, DU Xiaolei, ZHANG Xiujuan
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

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