Results 71 to 80 of about 5,603 (270)

Current and voltage harmonics acquisition and obtaining reference currents for an Single Phase shunt Active Power Filter [PDF]

open access: yes, 2013
This paper presents the design and implementation of the insulation and conditioning cards for sensors that measure voltage and current signals for to be applied to harmonic control and compensation in an Active Power Filter (APF). Then describes the
Forero, Edwin   +5 more
core   +1 more source

3D‐Printed Magnetoelectronics for Interactive Appliances and Self‐Aware 4D‐Printed Mechatronics

open access: yesAdvanced Science, EarlyView.
3D‐printed magnetoelectronics integrate high‐performance magnetic field sensing directly into complex structural components. Flexible spring and cross‐shaped sensors exhibit giant magnetoimpedance and 3D Hall sensing for vector field reconstruction. Applications include smart‐home switches, robotic joysticks, volumetric magnetometers, and self‐aware 4D‐
Eduardo Sergio Oliveros‐Mata   +5 more
wiley   +1 more source

Dynamic modeling and control of shunt active power filter [PDF]

open access: yes, 2014
Overall performance of the shunt active power filter depends on the method of reference current extraction. The conventional extraction methods for harmonic and reactive currents is having inaccuracy, in case of distorted and unbalanced supply; non ...
K Ragavan   +3 more
core   +1 more source

Reduction and control of harmonic on three-phase squirrel cage induction motors with voltage source inverter (VSI) using ANN-grasshopper optimization shunt active filters (ANN-GOSAF)

open access: yesScientific African, 2023
: The research paper focuses on the reduction and control of harmonic in a 3-phaseSquirrel Cage induction motor (SCIM) which drive by a pulse width modulation (PWM) controlled three-phase converter using a newly proposed ANN-Grasshopper optimization ...
Timothy Oluwaseun Araoye   +5 more
doaj   +1 more source

Mixed‐Polymer Hole Transport Layers Reinforce Au‐Anode Top Emitting Perovskite Light Emitting Diodes

open access: yesAdvanced Science, EarlyView.
Au‐anode corrosion is shown to occur rapidly under voltage bias in MAPbI3 perovskite LEDs. Resulting Au+ migration quickly leads to device shorting and unstable emission during constant current driving. We demonstrate that using a simple mixed‐polymer hole transport layer containing polyTPD and PVK can reduce Au‐corrosion and stabilize LED operation ...
James C. Loy   +5 more
wiley   +1 more source

Control active power filter for improving power quality in the microgrid [PDF]

open access: yes, 2013
This paper aims at improving the power quality with controlling method shunt active power filter in Micro- grid System. A hybrid compensation system consisting of an active filter and passive filters in the Micro-grid is discussed.
Mohd. Zin, Abdullah Asuhaimi   +3 more
core  

Fast-individual-harmonic-extraction technique [PDF]

open access: yes, 2005
One outcome of a PhD project (C H Ng, University studentship) A collaborative work (the Energy Systems Group, Northumbria and Durham University). It deals with the problem of harmonic suppression or elimination in power systems for safety and power ...
Busawon, Krishna   +3 more
core   +1 more source

Shunt Active Power Filter based on P-Q Theory with Multilevel Inverters for Harmonic Current Compensation [PDF]

open access: yes, 2017
A shunt active power filter based on P-Q theory combined with high pass filters (HPFs) for harmonic-current compensation was proposed in this paper. A dual level H-bridge inverter (DLHI) and clamp diode multilevel inverter (CDMI) as inverters was used ...
Suhendar Suhendar   +6 more
core   +4 more sources

A Single‐Cell Transcriptomic Atlas of the Ovine Rumen Microbiome Characterizes Lineage‐Specific Metabolic Shifts Associated with Host Heat Tolerance

open access: yesAdvanced Science, EarlyView.
An optimized single‐cell transcriptomic framework profiles over 60 000 cells to map the ovine rumen microbiome, partitioning the ecosystem into seven cross‐species functional clusters. In heat‐resistant hosts, a lineage‐specific metabolic shift in Anaerovibrio lipolyticus toward a highly glycolytic phenotype contributes to a “nutritional sparing ...
Sanbao Zhang   +8 more
wiley   +1 more source

A New Soft-Switched Three-Phase Four-Wire Shunt Active Power Filter [PDF]

open access: yesJournal of Intelligent Procedures in Electrical Technology, 2010
This paper presents a new soft switched topology for losses reduction in a three-phase four-wire shunt active power filter (SAPF). The soft-switching technique not only offers a reduction in switching loss and thermal requirement, but also allows the ...
Mohammad Reza Moradian   +2 more
doaj  

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