Results 21 to 30 of about 1,312 (255)

A Simple Space Vector Modulation Method With DC-Link Voltage Balancing and Reduced Common-Mode Voltage Strategy for a Three-Level T-Type Quasi-Z Source Inverter

open access: yesIEEE Access, 2021
Single-stage converters based on an impedance source (IS) network merged with a multilevel inverter remain a trending research topic, from both the topological and control perspectives, because of their potential in applications involving renewable ...
Nicolas Mayorga   +3 more
doaj   +1 more source

A Novel Stability Improvement Strategy for a Multi-Inverter System in a Weak Grid Utilizing Dual-Mode Control

open access: yesEnergies, 2018
Due to the increasing penetration of distributed generations (DGS) and non-negligible grid impedance, the instability problem of the multi-inverter system operating in current source mode (CSM) is becoming serious.
Ming Li, Xing Zhang, Wei Zhao
doaj   +1 more source

Electromagnetic Compatibility of Impedance Source Inverters

open access: yesElektronika ir Elektrotechnika, 2017
In the last decade, many new structures of Impedance Source Networks have been presented and applied to a variety of powering systems. Electromagnetic Compatibility (EMC) testing is a required procedure, when introducing a new product to the market, in order to confirm that a particular device meets the required standards. The novelty presented in this
Bernacki, Krzysztof, Rymarski, Zbigniew
openaire   +2 more sources

Two-Stage Control for Small-Signal Modeling and Power Conditioning of Grid-‎Connected Quasi-Z-Source Inverter with LCL Filter for Photovoltaic ‎Generation ‎ [PDF]

open access: yesJournal of Operation and Automation in Power Engineering, 2021
Grid-connected inverter-based photovoltaic (PV) systems play an important role in Distributed Power Generation (DPG). For this application, quasi impedance source inverter is very suitable due to its ability to increase or decrease the output voltage of ...
F. Aalizadeh   +3 more
doaj   +1 more source

A new topology of the switched-inductor/capacitor quasi Z-source inverter with ability of uplifted-boost [PDF]

open access: yesInternational Journal of Industrial Electronics, Control and Optimization, 2020
In this paper, a new topology of switched-inductor/capacitor quasi impedance source inverter is suggested, which in comparison with the other topologies possesses higher boost voltage inversion at high modulation index and low shoot through duty cycle ...
Alireza Karbalaei   +2 more
doaj   +1 more source

An adaptive virtual impedance fault current limiter for optimal protection coordination of islanded microgrids

open access: yesIET Renewable Power Generation, 2022
Fault currents of inverter‐interfaced distributed generators (IIDGs) depend on inverter controllers. Thus, IIDGs fault currents are different than those of synchronous‐based DGs, both from the magnitude and waveshape perspectives.
Talal Elemamali Sati, Maher A. Azzouz
doaj   +1 more source

Master–slave current regulation of an LCL-filter-based grid-connected inverter under variable grid condition

open access: yesThe Journal of Engineering, 2019
To ease the heavy burden of inverter control, including line current regulation, harmonic current suppression, filter resonance suppression, grid distortion suppression, phase locked loop etc., the study proposes a master–slave current regulation method ...
Yuanbin He   +4 more
doaj   +1 more source

A Simplified Design Strategy for Multi-Resonant Current Control of a Grid-Connected Voltage Source Inverter with an LCL Filter

open access: yesEnergies, 2018
A distorted grid voltage or nonlinear behavior in the current control loop can cause low frequency current harmonics in a grid-connected voltage source inverter (VSI).
Matthias Schiesser   +3 more
doaj   +1 more source

Modeling, Analysis, and Control Design of a Single-Stage Boost Inverter

open access: yesEnergies, 2021
A single-phase, single-stage, differential boost inverter comprises two independently-controlled boost DC-DC converters, with the load connected between their outputs.
Md. Rasheduzzaman   +3 more
doaj   +1 more source

Establishing an Apheresis Medicine Program in a Resource‐Constrained Setting: A 5‐Year Experience From Lagos, Nigeria

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Establishing a comprehensive apheresis medicine program in a resource‐constrained setting presents significant structural, financial, and logistical challenges. Despite the growing clinical importance of apheresis services globally, published experience from sub‐Saharan Africa remains sparse.
Folasade Adelekan‐Popoola   +4 more
wiley   +1 more source

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