Results 51 to 60 of about 21,283 (339)

Analysis and modeling of the Quasi-Z-Source-Inverter

open access: yesIECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society, 2011
This paper presents a dynamic average model of the Quasi-Z-Source Inverter (QZSI), based on the short term average values over one PWM-period, and the analysis of the possible switching states that can occur in the QZSI. The model is considerably descriptive since the modeling has been performed by analyzing the physical and functional relations with ...
Liske, A., Clos, G., Braun, M.
openaire   +3 more sources

Dual-Source Bidirectional Quasi-Z-Source Inverter Development for Off-Road Electric Vehicles

open access: yesWorld Electric Vehicle Journal, 2022
In this paper, a battery pack and a supercapacitor bank hybrid energy storage system (HESS) with a new control configuration is proposed for electric vehicles (EVs). A bidirectional quasi-Z-source inverter (Bq-ZSI) and a bidirectional DC-DC converter are
Daouda Mande   +3 more
doaj   +1 more source

Uncovering Droop Control Laws Embedded Within the Nonlinear Dynamics of Van der Pol Oscillators [PDF]

open access: yes, 2016
This paper examines the dynamics of power-electronic inverters in islanded microgrids that are controlled to emulate the dynamics of Van der Pol oscillators.
Dhople, Sairaj V.   +3 more
core   +1 more source

Adaptive shoot-through duty ratio control methodology of stand-alone quasi Z-source inverter

open access: yesEngineering review, 2023
This paper presents an adaptive shoot-through duty ratio control methodology for a stand-alone three-phase quasi-Z-source inverter (qZSI). In practice, variable active and reactive load powers must be met by a qZSI-based stand-alone system.
P. Gayen   +3 more
semanticscholar   +1 more source

Quasi‐Z based adaptive sliding mode control for three‐phase photovoltaic grid‐connected system

open access: yesIET Power Electronics, 2023
Considering the non‐linear characteristics of both the input and output of photovoltaic (PV) modules and quasi‐Z‐source inverters, as well as the unpredictable natural factors such as large disturbances caused by changes in illumination and temperature ...
Yan Chen   +3 more
doaj   +1 more source

Design and Control of a Quasi-Z Source Multilevel Inverter Using a New Reaching Law-Based Sliding Mode Control

open access: yesEnergies, 2022
The rapid growth in renewable energies has given rise to their integration into the grid system. These renewable and clean energy sources are dependent on external conditions such as wind speed, solar irradiation, and temperature. For a stable connection
Muhammad Awais Rafiq   +5 more
doaj   +1 more source

Control Strategies for Open-End Winding Drives Operating in the Flux-Weakening Region [PDF]

open access: yes, 2013
This paper presents and compares control strategies for three-phase open-end winding drives operating in the flux-weakening region. A six-leg inverter with a single dc-link is associated with the machine in order to use a single energy source.
BRUYERE, Antoine   +4 more
core   +5 more sources

An Enhanced Ultra-High Gain Quasi Z-source Inverter [PDF]

open access: yes, 2021
<div>An enhanced gain of qZSI topology is achieved.</div><div><br></div><div>This work has been submitted to the IEEE for possible publication. Copyright may be transferred without notice, after which this version may no longer be accessible.</div>
Sudip Das, Pritam Gayen
openaire   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

open access: yesAdvanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong   +16 more
wiley   +1 more source

Enhancing Direct Solar Water Splitting via ALD of Multifunctional TiO2/Pt Nanoparticle Coatings With Engineered Interfaces to GaAs/GaInP Tandem Cells

open access: yesAdvanced Functional Materials, EarlyView.
Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth   +8 more
wiley   +1 more source

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