Results 31 to 40 of about 39,342 (143)

Analysis of Output Current Ripple of Three-phase PWM Inverter under Discontinuous Modulation Techniques [PDF]

open access: yes, 2010
In this paper, an analysis of output current ripple of three-phase PWM inverters with discontinuous modulation is presented. The analytical expressions for discontinuous modulation injection signal are derived.
Dahono, Pekik Argo
core  

A Nine‐Level Common‐Ground Type Multi‐Level Inverter for Standalone and Grid‐Connected Applications

open access: yesIET Power Electronics
This work proposes a new common ground (CG) 9‐level (9L) inverter with only nine switches and three capacitors. The proposed converter can be deployed for high‐frequency AC applications with advantages like improved harmonic spectrum and reduced ...
Mohammad Zaid   +5 more
doaj   +1 more source

A Preclinical Multifunctional Capsule Robot with Unified Diagnosis and Targeted Thermal Therapy for Gastrointestinal Diseases

open access: yesAdvanced Science, EarlyView.
A proof‐of‐concept multifunctional capsule robot integrates diagnostic imaging, magnetic navigation, wireless power transfer, and targeted thermotherapy for gastrointestinal applications. Magnetically guided positioning and stable wireless power enable localized thermal ablation, achieving controlled heating and high cell mortality in vitro.
Heng Zhang   +7 more
wiley   +1 more source

Hybrid Inverters With Dual Switching Frequencies for Switched Reluctance Motors

open access: yesEnergy Science &Engineering, EarlyView.
A hybrid dual‐switching‐frequency inverter for SRMs is proposed, combining SiC and IGBT devices based on rotor inductance. The method enables accurate current tracking with simple hysteresis control, significantly reducing torque ripple, vibration, and acoustic noise while cutting inverter cost compared to full‐SiC solutions.
Fares S. El‐Faouri   +4 more
wiley   +1 more source

Análise modelagem e controle de retificadores PWM trifásicos [PDF]

open access: yes, 2005
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.Este trabalho apresenta uma análise, proposição de novos modelos, e estratégias de controle das correntes de entrada, sem a ...
Borgonovo, Deivis
core  

Optimal Lithium‐Ion Battery—Supercapacitor Energy Storage System Capacity for Off‐Grid Intermittent Renewable Energy Mini‐Grids

open access: yesEnergy Science &Engineering, EarlyView.
Deployment of an aging‐based controller during designing of optimal lithium‐ion battery—supercapacitor (LB‐Sc) hybrid energy storage system (HESS) capacity, in off‐grid IREMGs, improves performance of the LB and reduces its aging rate. Also, annualised cost of the LB‐Sc HESS improves by 33.15% in relation to optimal LB SESS.
Isaac Gwayi   +2 more
wiley   +1 more source

Evaluation of DC-link voltage ripple in five-phase PWM voltage source inverters

open access: yesThe Journal of Engineering, 2019
This paper presents the analysis of the DC-link voltage switching ripple in five-phase PWM voltage source inverters with balanced load. The analysis is particularly important for the design and selection of a DC-link capacitor making it possible to meet ...
M. Vujacic   +4 more
doaj   +1 more source

Decoding sequence recognition code of nucleic acid‐binding proteins of human‐infecting DNA viruses

open access: yesiMeta, EarlyView.
Human‐infecting DNA viruses remain major health threats, yet the DNA‐recognition mechanisms of their nucleic acid‐binding proteins (NBPs) are poorly understood. Here, we systematically profiled 103 viral NBPs from human‐infecting DNA viruses, with three NBPs from non‐human‐infecting DNA viruses as controls, using high‐throughput screening.
Meifang Tang   +10 more
wiley   +1 more source

Efficiency-optimised modulation technique of three-level NPC inverter

open access: yesThe Journal of Engineering, 2018
The three-level NPC inverter has many advantages, such as the characteristics of high output power, low device stress, and low harmonic distortion of output waveform.
Ning Li   +3 more
doaj   +1 more source

NKX2‐1 Downstream Regulatory Structural Variants Explain a Substantial Proportion of Molecular Diagnoses in Patients With Benign Hereditary Chorea

open access: yesMovement Disorders, EarlyView.
Abstract Background NKX2‐1–related disorders (NKX2‐1‐RDs) classically present with a triad of neurological, endocrine, and pulmonary manifestations, including benign hereditary chorea. However, in a fraction of patients, NKX2‐1 coding variants are not detected, and variants outside the NKX2‐1 locus have been reported.
Robin Wijngaard   +33 more
wiley   +1 more source

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