Results 41 to 50 of about 13,543 (298)

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

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

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

New Multicell Switched-Inductor Quasi-Z-Source Inverter

open access: yesElectronics, 2023
To address the problems of quasi-Z-source inverters with limited boosting ability and high voltage stress, a novel class of multicell switched-inductor quasi-Z-source inverters is proposed. The new inverter is based on the quasi-Z-source inverter in which the inductors in the impedance source network are replaced by a multicell switched-inductors.
Renxi Gong   +3 more
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

Improved vector selection model predictive control strategy for quasi‐Z‐source inverter virtual synchronous generator grid‐connected system

open access: yesThe Journal of Engineering
Conventional inverter control methods reduce the grid inertia and are susceptible to parameter variations, resulting in a gradual weakening of grid stability.
Zhun Cheng   +3 more
doaj   +1 more source

Optimal Energy Efficiency Tracking in the Energy-Stored Quasi-Z-Source Inverter

open access: yesEnergies, 2020
In this paper, the interaction between the energy storage (ES) power distribution and system efficiency enhancement is researched based on the energy stored quasi-Z-source inverter.
Sideng Hu   +3 more
doaj   +1 more source

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