Results 31 to 40 of about 7,959 (262)

Offline Selective Harmonic Elimination With (2N+1) Output Voltage Levels in Modular Multilevel Converter Using a Differential Harmony Search Algorithm

IEEE Access, 2020
(2N+1) selective harmonic elimination pulse-width modulation (SHE-PWM) is an effective switching strategy of the modular multilevel converter in medium-voltage cases. In these cases, the number of sub-modules (SMs) is not high.
Yayun Xin, Jin Yi, Kai Zhang, Canfeng Chen, Jian Xiong   +4 more
doaj   +1 more source

An Improved Power Quality Evaluation for LED Lamp Based on G1-Entropy Method

IEEE Access, 2021
Nowadays, light emitting diode (LED) lamps have been widely utilized for lighting system due to its low-energy consumption. The harmonic emission standard is ignored by most of the manufacturers, high harmonic current will increase harmonic injection and
Jiaming Dou, Hongyan Ma, Jingjian Yang, Yingda Zhang, Rong Guo   +4 more
doaj   +1 more source

Active harmonic elimination for multilevel converters [PDF]

IEEE Transactions on Power Electronics, 2006
This paper presents an active harmonic elimination method to eliminate any number of specific higher order harmonics of multilevel converters with equal or unequal dc voltages. First, resultant theory is applied to transcendental equations characterizing the harmonic content to eliminate low order harmonics and to determine switching angles for the ...
null Zhong Du, L.M. Tolbert, J.N. Chiasson   +2 more
openaire   +1 more source

Multiple Sclerosis Relapse Activity After Ozanimod Discontinuation in DAYBREAK Trial Participants

Annals of Clinical and Translational Neurology, EarlyView.
Multiple Sclerosis Relapse Activity After Ozanimod Discontinuation in DAYBREAK Trial Participants. ABSTRACT Objective Return of disease activity is expected when patients discontinue disease‐modifying therapy (DMT) for multiple sclerosis (MS). Some MS DMTs are associated with higher‐than‐expected disease activity (rebound) after discontinuation.
Ralf Gold, Krzysztof W. Selmaj, Regina Berkovich, Jeffrey A. Cohen, Giancarlo Comi, Eva K. Havrdová, James K. Sheffield, Hetal Desai, Chun‐Yen Cheng, Jon V. Riolo, Andrew Thorpe, Erik DeBoer, Bruce A. C. Cree   +12 more
wiley   +1 more source

Research of Harmonic Elimination and Reactive Power Compensation of Mine Electricity Grid and Its Application

Gong-kuang zidonghua, 2012
For problems of voltage and current distortion and capacity waste of grid caused by harmonic pollution, power quality testing and analysis were given, and a scheme of using SVG for harmonic elimination and reactive power compensation were proposed ...
GUO Jin-long, LV Jing-jiang, WANG Yi-lei
doaj  

An Improved SHEPWM Modulation Algorithm for Three-levelEnergy Feedback Inverter

Kongzhi Yu Xinxi Jishu, 2021
The maximum switching frequency of high power converters is limited by the heat dissipation system and cannot be randomly increased. Consequently, increasing low-order harmonics are introduced into the grid.
WU Xuefeng, CHEN Jielian, WANG Xiong, SONG Qianru, YIN Weiheng   +4 more
doaj  

Sertraline Treatment Can Mimic Niemann‐Pick Type C Biomarker Profile: A Diagnostic Pitfall

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Oxysterols (cholestane‐3β,5α,6β‐triol and 7‐ketocholesterol) and N‐palmitoyl‐O‐phosphocholineserine (PPCS) are sensitive biomarkers for Niemann‐Pick disease type C (NPC) screening. However, false‐positive results occur, with a biomarker profile suggestive of NPC despite the absence of pathogenic variants in genes involved in NPC or ...
Maria Makrygianni, Cecile Pagan, Antony Citterio‐Quentin, Isabelle Rouvet, Giulia Dingeo, Cyril Hanin, Claudine Laurent‐Levinson, Samia Pichard, Bénédicte Héron, Clément Gourguechon, Daniele Mandia, Jerome Guitton, Carole Lacout, Nicolas Schleinitz, Florient Potier, Olivier Flabeau, Elsa Besse‐Pinot, Foudil Lamari, Magali Pettazzoni, Yann Nadjar   +19 more
wiley   +1 more source

An Adaptive Heart Rate Monitoring System Based on Algebraic Distance Minimization

IEEE Access
A novel adaptive heart rate monitoring and filtering system based on algebraic distance minimization has been designed. This system uses frequency-modulated continuous-wave radar for non-contact monitoring of parameters such as respiration, heart rate ...
Mu Li, Yangyang Yang, Xizheng Ke
doaj   +1 more source

Plasma EV Proteomics Identifies ECM Remodeling and Inflammatory Proteins LUM and C7 as Candidate Biomarkers in FSHD

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Facioscapulohumeral muscular dystrophy (FSHD) is one of the most debilitating and common muscular dystrophies. Despite its severity, no approved therapy exists for FSHD patients. However, several therapeutic candidates are currently under development, and some have recently entered clinical trials, marking the need for reliable ...
Mustafa Bilal Bayazit, Chiranth K. Nagaraj, Jackson S. Newell, Kim Truc Nguyen, Xilal Y. Rima, Jacob Doon‐Ralls, Eduardo Reátegui, Jeffrey M. Statland, Rabi Tawil, Kevin M. Flanigan, Scott Q. Harper, Nizar Y. Saad   +11 more
wiley   +1 more source

Implementation of Selective Harmonics Elimination for Single Phase Inverter using Arduino and Simulink MATLAB model

Tikrit Journal of Engineering Sciences, 2020
This paper presents Arduino controller implementation and Simulink model in MATLAB to eliminate a selected number of harmonics in a single phase inverter.
Taha A. Hussein, Ibrahim I. Sheet
doaj   +1 more source