Results 31 to 40 of about 12,422,847 (291)

A new control technique for active power filters using a combined genetic algorithm/conventional analysis [PDF]

open access: yes, 2002
In this paper, the computational problems associated with the optimization techniques used to evaluate the switching patterns for controlling variable-characteristics active power filters are presented and critically analyzed.
El-Habrouk, M, Darwish, MK
core   +1 more source

An Improved Control Method of DC Voltage for Series Hybrid Active Power Filter

open access: yesEnergies
DC voltage is one of the important parameters of active power filters. Since the series hybrid active power filter does not withstand the fundamental voltage, it cannot absorb energy from the power grid, making it too difficult to control its DC voltage.
Jianben Liu, Yuan Ni, Jun Zhao
doaj   +1 more source

Active Damping in Series Connected Power Modules with Continuous Output Voltage

open access: yesPower Electronics and Drives, 2021
This paper presents a modular and scalable power electronics concept for motor control with continuous output voltage. In contrast to multilevel concepts, modules with continuous output voltage are connected in series.
Ulmer Sabrina   +2 more
doaj   +1 more source

Active Power Filter Design by a Novel Approach of Multi-Objective Optimization [PDF]

open access: yesJournal of Operation and Automation in Power Engineering, 2007
This paper presents an innovative active power filter design method to simultaneously compensate the current harmonics and reactive power of a nonlinear load.
H. R. Imanijajarmi   +2 more
doaj  

A Grid-Connected Solar PV/Wind Turbine Based Hybrid Energy System Using ANFIS Controller for Hybrid Series Active Power Filter to Improve the Power Quality

open access: yesInternational Transactions on Electrical Energy Systems, 2022
The current needs of more nonlinear loads and the frequent usage of single-phase loads in three-phase system drastically create power quality issues in the grid-connected system.
Pazhanimuthu Cholamuthu   +8 more
doaj   +1 more source

Engineering peptides into antibodies—opportunities and strategies for therapeutic innovation

open access: yesFEBS Letters, EarlyView.
Peptides and antibodies occupy complementary therapeutic niches. Peptides recognize difficult targets in a compact format, while antibodies add specificity, long half‐life, and effector functions. This review examines strategies that merge both modalities—peptide grafting into loops, terminal and Fc fusions, and bioconjugation—highlighting how ...
Jinling Wang   +2 more
wiley   +1 more source

Two Degree of Freedom Resonant Structure for Robust Current Control and Active Power Filtering [PDF]

open access: yes, 2005
This paper introduces a novel two degree of freedom resonant control structure for current control in a stationary reference frame in one- or three-phase power electronics systems. The main focus is put on the design of the controller for robust tracking
N. Bajcinca   +3 more
core   +1 more source

Self-Supported Transformerless Series Active Power Filter for Wide-Range Load Voltage Compensation

open access: yesEletrônica de Potência
This paper investigates a three-phase transformerless series active power filter based on open-end connections. The studied system was designed to mitigate power quality issues, including voltage harmonics, as well as balanced and unbalanced voltage ...
Aléssio T. S. S. Santos   +3 more
doaj   +1 more source

A non-linear controller design for UPQC in distribution systems

open access: yesAlexandria Engineering Journal, 2018
In this article, a new approach based on non-linear control scheme was proposed for unified power quality conditioner (UPQC). The combination of sliding mode control and instantaneous active and reactive power theories was used to design this controller.
Mojtaba Yavari   +2 more
doaj   +1 more source

Improving the quality of energy using an active power filter with zero direct power command control related to a photovoltaic system connected to a network

open access: yesElectrical engineering & Electromechanics, 2023
Introduction. This article’s subject is a dual function energy system that improves the quality of the electric energy with help of an active power filter and uses a new technique of command named ZDPC (Zero Direct Power Command) on one hand, and on the ...
K. Djazia, M. Sarra
doaj   +1 more source

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