Four-Leg Sustained Dynamic Compression Staple and Screw Generates Superior Lapidus Construct as Compared to Plate and Screw: A Biomechanical Study [PDF]
Foot & Ankle Orthopaedics, 2023 Category: Ankle; Basic Sciences/Biologics Introduction/Purpose: Lapidus procedures are frequently used to treat moderate to severe hallux valgus in the setting of first tarsometatarsal instability or arthritis.
David Safranski PhD +5 more
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An Overview of Four-Leg Converters: Topologies, Modulations, Control and Applications
IEEE Access, 2022 In three-phase unbalanced systems, where the circulation of zero sequence current is necessary, four-leg converters provide a neutral connection for single-phase or other unbalanced loads typically utilized in three-phase distribution systems.
Felix Rojas +7 more
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Three‐phase four‐leg flying‐capacitor multi‐level inverter‐based active power filter for unbalanced current operation [PDF]
IET Power Electronics, 2013 This study describes a new application of flying capacitor multi-level inverters whereby a three-phase, four-leg three-level inverter is used for harmonic current cancellation and unbalanced current compensation in a four-wire system.
Benjamin Chong +7 more
exaly +3 more sources
AC Current Ripple in Three-Phase Four-Leg PWM Converters with Neutral Line Inductor
Energies, 2021 This paper presents a comprehensive study of peak-to-peak and root-mean-square (RMS) values of AC current ripples with balanced and unbalanced fundamental currents in a generic case of three-phase four-leg converters with uncoupled AC interface inductors
Aleksandr Viatkin +4 more
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Energies, 2023 This manuscript proposes a novel approach for determining phase and neutral-current-ripple RMS in grid-connected four-leg inverters with the neutral inductor.
Riccardo Mandrioli +3 more
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Energies, 2022 A study on the capacity increase of a power converter according to the increase in the single capacity of wave energy converters and four-leg topology that can supply stable power even under unbalanced load conditions during independent operation is ...
Chan Roh
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Two new genera and four new species of Asterocheridae (Copepoda: Siphonostomatoida) associated with sponges (Porifera) from the Korean East Sea [PDF]
PeerJ, 2023 Two new genera and four new species of siphonostomatoid copepods of the family Asterocheridae associated with sponges are described from the Korean East Sea (Sea of Japan).
Il-Hoi Kim, Taekjun Lee
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Energies, 2020 A complete analysis of the ac output current ripple in four-leg voltage source inverters considering multiple modulation schemes is provided. In detail, current ripple envelopes and peak-to-peak profiles have been determined in the whole fundamental ...
Riccardo Mandrioli +4 more
doaj +1 more source
Sliding mode controller for four leg shunt active power filter to eliminating zero sequence current, compensating harmonics and reactive power with fixed switching frequency [PDF]
Serbian Journal of Electrical Engineering, 2015 In this paper, the four leg inverter controlled by the three dimensional space vector modulation (3D SVM) is used as the shunt active power filter (SAPF) for compensating the three phase four wire electrical network, by using the four leg ...
Chebabhi Ali +3 more
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A fault-tolerance topology of three-level four-leg NPC inverter
Gong-kuang zidonghua, 2016 In view of problem that it is difficult to accurately locate device failure of inverter, a fault tolerance topology of three-level four-leg NPC inverter was proposed.
QIU Shiguang, LI Siguang
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