Results 71 to 80 of about 21,283 (339)

A Dimensional Reduction Optimization Strategy for Line Voltage cascade Quasi-Z-Source Inverter Based on GRA-PCA-PSO

open access: yesJournal of Physics: Conference Series, 2023
Compared with traditional inverters, line voltage cascade quasi-Z source inverter (LVC-QZSI) has many advantages, but its power quality problems limit its wide application to some extent.
Zhiyong Li   +3 more
semanticscholar   +1 more source

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey   +5 more
wiley   +1 more source

Multiphase induction motor drives - a technology status review [PDF]

open access: yes, 2007
The area of multiphase variable-speed motor drives in general and multiphase induction motor drives in particular has experienced a substantial growth since the beginning of this century.
Abbas   +121 more
core   +1 more source

Mode-Dependent Energy Management of a Dual-Source Active Switched Quasi-Z-Source Inverter for Fuel Cell Hybrid Vehicles

open access: yesIEEE transactions on energy conversion
To prolong the fuel cell (FC) lifetime, hybridizing an FC stack with a lithium-ion capacitor (LiC) bank via a new single-stage power converter is promising in FC hybrid electric vehicles (FC-HEVs).
T. V. Do   +3 more
semanticscholar   +1 more source

Hydrogen‐Bond‐Rich Supramolecular Multiblock Copolymers Facilitate Rapid Zn2+ Migration in Quasi‐Solid‐State Zinc‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
The disordered growth of dendrites, corrosion, parasitic side reactions, slow de‐solvation kinetics, and inherent safety risks significantly hinder the practical deployment of conventional liquid electrolyte zinc‐ion batteries. In contrast, the novel PU‐EG+DMPA‐Zn polyurethane quasi‐solid‐state electrolyte, enriched with abundant polar functional ...
Ruiqi Liu   +10 more
wiley   +1 more source

A Control Method for Static VAR Compensator Based On Modular Multilevel Inverter [PDF]

open access: yes, 2009
Multilevel inverters are promised to provide a better performance in high power applications such as static VAR compensators. The proposed modular inverter has advantages compared to the conventional technologies.
Dahono, Pekik
core  

A 100-MIPS GaAs asynchronous microprocessor [PDF]

open access: yes, 1994
The authors describe how they ported an asynchronous microprocessor previously implemented in CMOS to gallium arsenide, using a technology-independent asynchronous design technique.
Borkovic, Drazen   +3 more
core   +1 more source

Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis

open access: yesAdvanced Functional Materials, EarlyView.
An all‐optical method is presented for quantifying the density of boron vacancy spin defects in hexagonal boron nitride (hBN). By correlating Raman and photoluminescence signals with irradiation fluence, defect‐induced Raman modes are identified and established an relationship linking optical signatures to absolute defect densities. This enables direct
Atanu Patra   +8 more
wiley   +1 more source

APPLICATION OF QUASI-Z-SOURCE INVERTER IN PHOTOVOLTAIC GRID-CONNECTED SYSTEMS

open access: yesJournal of Engineering and Sustainable Development, 2017
In this paper, a single phase quasi-Z-source inverter with maximum power point tracking (MPPT) is proposed for photovoltaic (PV) system. A boost DC-DC converter is used to implement the MPPT algorithm for tracking the maximum power from a PV panel ...
Turki Kahawish Hassan
doaj  

Parameter Optimisation of a Virtual Synchronous Machine in a Microgrid

open access: yes, 2016
Parameters of a virtual synchronous machine in a small microgrid are optimised. The dynamical behaviour of the system is simulated after a perturbation, where the system needs to return to its steady state.
Alexander K. Hartmann   +6 more
core   +1 more source

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