Results 121 to 130 of about 239,366 (313)

Reduction of total harmonic distortion in power inverters [PDF]

, 2005
The output voltage of PWM power inverters shows harmonic distortion due to several causes; the main ones are the modulation algorithm, nonlinearities in the output filter, dead times, voltage drops across the switches and modulation of the dc bus voltage.
Aymonino, Oscar Andres, Chiacchiarini, Hector Gerardo, Mandolesi, Pablo Sergio, Oliva, Alejandro Raul   +3 more
core  

Review of Flash Joule Heating for the Synthesis of Graphene and Other Functional Carbon Materials

Carbon Energy, EarlyView.
ABSTRACT Flash Joule heating (FJH), as a high‐efficiency and low‐energy consumption technology for advanced materials synthesis, has shown significant potential in the synthesis of graphene and other functional carbon materials. Based on the Joule effect, the solid carbon sources can be rapidly heated to ultra‐high temperatures (> 3000 K) through ...
Zhiwu Tan, Faisal Mahmood, Mengzhen Tian, Yimeng Li, Qingfa Zhang, Zhong Ma, Mingfeng Wang, Weiwei Liu, Shihong Zhang, Haiping Yang, Bin Li   +10 more
wiley   +1 more source

Investigation of Fault-Tolerant Capabilities in an Advanced Three-Level Active T-Type Converter [PDF]

, 2019
A novel fault-tolerant three-level power converter topology, named advanced three-level active T-Type (A3L-ATT) converter, is introduced to increase the reliability of multilevel power converters used in safety-critical applications.
He, Jiangbiao, Katebi, Ramin, Weise, Nathan   +2 more
core   +1 more source

Multiple String LED Driver With Flexible and High-Performance PWM Dimming Control [PDF]

, 2017
Mohammad Tahan, Tingshu Hu
openalex   +1 more source

Impedance Modeling and Analysis of PV Inverters Considering Fractional‐Order Characteristics of Elements

International Journal of Circuit Theory and Applications, EarlyView.
This manuscript finds that the previous impedance modeling and stability analysis methods for photovoltaic inverters have not yet considered the fractional‐order characteristics of the elements; in order to make up for the blank in this research field, this paper carried out relevant work.
Guanlei Li, Yahui Shen, Lei Ji, Peng Chen, Shuohe Wang   +4 more
wiley   +1 more source

A Novel Side-Channel in Real-Time Schedulers

, 2019
We demonstrate the presence of a novel scheduler side-channel in preemptive, fixed-priority real-time systems (RTS); examples of such systems can be found in automotive systems, avionic systems, power plants and industrial control systems among others ...
Bobba, Rakesh B., Chen, Chien-Ying, Kiyavash, Negar, Mohan, Sibin, Pellizzoni, Rodolfo   +4 more
core   +1 more source

Nonisolated High Step‐Up DC‐DC Ćuk Converter Based on Coupled Inductors

International Journal of Circuit Theory and Applications, EarlyView.
A nonisolated high step‐up DC‐DC Ćuk converter based on coupled inductors and voltage multiplier cell (VMCs) is proposed and thoroughly assessed. ABSTRACT This work presents a nonisolated high step‐up DC‐DC Ćuk converter, specifically designed for nanogrid applications.
Manuel de Oliveira Vasconcelos Júnior, Francilino Carneiro de Araújo, Antonio Alisson Alencar Freitas, Marcus Vinicius Silverio Costa, Fernando Lessa Tofoli, Fernando Luiz Marcelo Antunes, Edilson Mineiro Sá Jr., Kleber Cesar Alves de Souza   +7 more
wiley   +1 more source

Pseudoaneurysms as a complication of stereoelectroencephalography: Case series and clinical recommendations

Epilepsia, EarlyView.
Abstract Objective Stereoelectroencephalography (sEEG) is commonly employed in the workup for epilepsy surgery in patients with focal drug‐resistant epilepsy (DRE). Intracranial hemorrhage is a known complication, with reported incidence rates ranging from .9% to 19.1%. Rarely, pseudoaneurysms have been reported in literature as a potential cause. This
Youssra El Khou, Rick H. G. J. van Lanen, G. Louis Wagner, Simon Tousseyn, Gwendolyn de Bruyn, Christianne M. C. Hoeberigs, Bart A. J. M. Wagemans, Christiaan van der Leij, Sylvia Klinkenberg, Jeske Nelissen, Pieter L. Kubben, Olaf E. M. G. Schijns, Jim T. A. Dings, Kim Rijkers, on behalf of the ACE Epilepsy Surgery group, Gwendolyn de Bruyn, Albert Colon, Jim Dings, Marc Hendriks, Danny Hilkman, Christianne Hoeberigs, Jochem van der Pol, Lotte de Jong, Kim Rijkers, Sylvia Klinkenberg, Vivianne van Kranen Mastenbroek, Jeske Nelissen, Pieter Kubben, Walter M. Palm, Rob P. W. Rouhl, Olaf Schijns, Simon Tousseyn, Marielle Vlooswijk, Louis Wagner, Dorien Weckhuysen, Ilse van Straaten   +35 more
wiley   +1 more source

Multilevel Converters: An Enabling Technology for High-Power Applications [PDF]

, 2009
| Multilevel converters are considered today as the state-of-the-art power-conversion systems for high-power and power-quality demanding applications.
García Franquelo, Leopoldo, Kouro, Samir, León Galván, José Ignacio, Martín Prats, María de los Ángeles, Portillo Guisado, Ramón Carlos, Pérez, Marcelo, Rodríguez, José   +6 more
core  

Supercritical Pitchfork Bifurcation of a Fractional‐Order Doubly‐Fed Induction Generator

Energy Science &Engineering, EarlyView.
ABSTRACT To address the problem of the chaos phenomenon caused by the parameter drift of a doubly‐fed induction generator (DFIG) due to a changing operating environment, a fractional‐order stator voltage/flux‐oriented control model is developed, and bifurcation theory and numerical simulations reveal that the chaos mechanism originates from ...
Wei Chen, Zhongli Chen, Zhanhong Wei, Jiangtao Li, Jie Lin   +4 more
wiley   +1 more source