Results 41 to 50 of about 39,996 (261)
Virtual Inertia Implemented by Quasi-Z-Source Power Converter for Distributed Power System
Energies, 2023 This paper proposes a novel virtual inertia control strategy for distributed power systems with high penetration of renewable energy sources. The strategy uses a quasi-Z-source power converter to emulate the inertia response of a synchronous generator by
Yitao Liu, Hongle Chen, Runqiu Fang
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Evaluating Energy Absorption Performance of Filled Lattice Structures
Advanced Engineering Materials, EarlyView.Maximum stress must be considered to robustly evaluate energy absorber designs. This approach was applied to compare all types of absorbers in a single Ashby diagram and determine the utility of filling lattice voids with a second material. High‐performance fillers can improve the performance of lattices that are limited by buckling or catastrophic ...
Christian Bonney +2 more
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A Switched Quasi-Z-Source Inverter with Continuous Input Currents
Energies, 2020 Impedance source converters as single-stage power conversion alternatives can boost and regulate the output voltages of renewable energy sources. Nevertheless, they, also known as Z-source inverters (ZSIs), still suffer from limited voltage gains and ...
Jing Yuan +2 more
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Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading
Advanced Engineering Materials, EarlyView.The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
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Cascadable Enhanced Quasi‐Z‐Source Inverter with Reduced Current Stress
IET Power ElectronicsIn magnetically coupled impedance source (MCIS) inverters, the turn ratio of the coupled inductor offers design flexibility. The leakage inductance, however, poses additional challenges, mainly voltage spikes.
Ahmad Mahdave +3 more
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Modeling and Analysis of Quasi-Z Source IMC Converter Feeding PMSM Drive System
Tikrit Journal of Engineering SciencesThe purpose of this study is to increase the voltage gain (U_g) for a quasi-Z-source indirect matrix converter (IMC) feeding a three-phase Permanent Magnet Synchronous machine (PMSM) drive system.
Ahmed K. Hannan +4 more
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A new soft‐switching multi‐input quasi‐Z‐source converter for hybrid sources systems
IET Renewable Power Generation, 2021 This study focuses on a zero voltage transition multi‐input quasi‐Z‐source converter (qZSC). This topology can be used for input sources with different voltages and currents to provide a constant output voltage.
Amir Torki Harchegani +2 more
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Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales
Advanced Engineering Materials, EarlyView.Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik +7 more
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IET Power Electronics, 2023 This paper presents a fully soft switched high step‐up DC–DC converter based on quasi‐Z‐source converter. The voltage gain is boosted by combining coupled inductors and switched capacitor techniques.
Maryam Hajilou +2 more
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Averaged Dynamic Modeling and Control of a Quasi-Z-Source Inverter for Wind Power Applications
IEEE Access, 2021 Typically, permanent magnet synchronous generator (PMSG)-driven wind turbines (WTs) present a two-stage power converter topology based on a DC/DC boost converter and voltage source inverter.
Emanuel P. P. Soares-Ramos +5 more
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