Results 71 to 80 of about 96,152 (211)

Energy consumption for ion transport in a segmented Paul trap [PDF]

open access: yes, 2018
There is recent interest in determining energy costs of shortcuts to adiabaticity (STA), but different definitions of "cost" have been used. We demonstrate the importance of taking into account the Control System (CS) for a fair assessment of energy ...
Alonso, J., Muga, J. G., Tobalina, A.
core   +3 more sources

Filtration of Harmonic Components and Correction Power Factor in Nonlinear Loads

open access: yesGazi Üniversitesi Fen Bilimleri Dergisi, 2019
Total harmonic distortion has become an important subject in power quality, especially after use of power electronic equipment and non-linear loads.
Süleyman ADAK   +2 more
doaj   +1 more source

Coupling Matrix Representation of Nonreciprocal Filters Based on Time Modulated Resonators [PDF]

open access: yes, 2019
This paper addresses the analysis and design of non-reciprocal filters based on time modulated resonators. We analytically show that time modulating a resonator leads to a set of harmonic resonators composed of the unmodulated lumped elements plus a ...
Alvarez-Melcon, A.   +4 more
core   +2 more sources

Prony Analysis for Power System Transient Harmonics

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
Proliferation of nonlinear loads in power systems has increased harmonic pollution and deteriorated power quality. Not required to have prior knowledge of existing harmonics, Prony analysis detects frequencies, magnitudes, phases, and especially damping
Qi Li   +3 more
doaj   +2 more sources

The condition monitoring of the passive harmonic filters in rail way DC sub stations [PDF]

open access: yes, 2013
The condition monitoring of the passive 12th and 24th harmonic filters in the DC sub station employing 12 pulse passive rectification plays the vital role of suppressing generated harmonics. The railway service of South Africa (Transnet) is confronted by
Breedt, Petrus Gerhardus
core  

Integrated series active filter for aerospace flight control surface actuation [PDF]

open access: yes, 2007
The paper investigates integrated series active filters to satisfy aircraft power quality benchmarks and underlying design compromises. Advantages include reduced component count and retrofitting capability.
Bingham, Chris, Ganthony, D
core   +1 more source

Model predictive control based selective harmonic control-PWM strategy for active power filters

open access: yesInternational Journal of Electrical Power & Energy Systems
Active power filters are widely used to improve power quality and mitigate harmonic distortion caused by non-linear loads and grid-connected generation units.
Irati Ibanez-Hidalgo   +5 more
doaj   +1 more source

The new 150 MVAr, 18 kV static var compensator for SPS: background, design and commissioning [PDF]

open access: yes, 2003
A new Static Var Compensator (SVC) was designed, installed and commissioned by ABB for CERN’s Super Proton Synchrotron (SPS) accelerator. Due to the sensitive nature of the pulsating power converter load for the SPS magnets, very strict requirements were
De Oliveira, M M   +3 more
core  

A Two-stage approach to harmonic rejection mixing using blind interference cancelling [PDF]

open access: yes, 2008
Current analog harmonic rejection mixers typically provide 30–40 dB of harmonic rejection, which is often not sufficient. We present a mixed analog-digital approach to harmonic rejection mixing that uses a digital interference canceler to reject the ...
Klumperink, E.A.M.   +2 more
core   +2 more sources

A harmonic current detection algorithm for aviation active power filter based on generalized delayed signal superposition

open access: yesScientific Reports
To address the limitations of traditional harmonic detection methods for active power filters in variable-frequency-grids of the More Electric Aircraft (MEA), including inadequate filtering performance and poor adaptability to frequency variations, this ...
Yong Lu   +4 more
doaj   +1 more source

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