Results 101 to 110 of about 472,625 (280)

Voltage balancing in three-level neutral-point-clamped converters via Luenberger observer [PDF]

, 2014
This paper addresses the problems associated with the dc-link capacitor voltages of the three-level neutral-point-clamped power converter: the imbalance of the capacitor voltages as well as the presence of an ac-voltage low-frequency oscillation in the ...
Gordillo Álvarez, Francisco, Gómez‐Estern Aguilar, Fabio, Portillo Guisado, Ramón Carlos, Salas Gómez, Francisco, Umbría Jiménez, Francisco, Vázquez Pérez, Sergio   +5 more
core   +2 more sources

Stability of input voltages of a three-level inverter NPC fed by photovoltaic sources

Revue des Énergies Renouvelables, 2012
In this paper we study the stability of input voltages of the cascade consisting of a photovoltaic inverter and a three-level structure NPC, feeding a synchronous machine with permanent magnets (PMSM) commissioned by the speed command flow oriented.
F. Bouchafaa, A. Chouder, S. Boukhalfa   +2 more
doaj  

Single phase NPC inverter controller with Integrated MPPT for PV grid connection [PDF]

, 2016
This paper presents a single-stage three-level Neutral Point Clamped (NPC) inverter for connection to the electrical power grid, with integrated Maximum Power Point Tracking (MPPT) algorithm to extract the maximum power available from solar ...
Afonso, João L., Exposto, Bruno, Gonçalves, Henrique, Halaili, Manel, Mechergui, Hfaiedh   +4 more
core   +1 more source

Thermal characteristic research of associated power devices based on three-level inverters and power-loss calculation

Case Studies in Thermal Engineering, 2018
To reduce the size and improve the power density of three-level inverters, two or more associated power devices are assembled on the same heatsink, which, however, has a great influence on the thermal characteristics of heatsink because of heat ...
Shi-Zhou Xu, Chun-Jie Wang, Fang-Li Lin, Xiang-Yu Zhu, Xue Xia   +4 more
doaj   +1 more source

Performance evaluation of a 3-level ANPC photovoltaic grid-connected inverter with 650V SiC devices and optimized PWM [PDF]

, 2016
Photovoltaic (PV) energy conversion has been on the spotlight of scientific research on renewable energy for several years. In recent years the bulk of the research on PV has focused on transformerless grid-connected inverters, more efficient than ...
Barater, Davide, Buticchi, Giampaolo, Castellazzi, Alberto, Concari, Carlo, De, Dipankar, Gurpinar, Emre   +5 more
core   +2 more sources

A Study on the Design of MV Class Power Stack for Neutral Point Clamped Three-Level Converter [PDF]

, 2016
Over the last decade, there has been a growing interest in renewable energy. As one of the renewable energy resources, wind power is attracting considerable attention and becoming most developing renewable energy resources.
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core   +1 more source

ZNF844 Suppresses Invasion and Metastasis in Nasopharyngeal Carcinoma by Inhibiting the PI3K‐AKT Signaling Pathway

Cancer Science, EarlyView.
ZNF844 functions as a tumor suppressor in NPC by inhibiting invasion and metastasis through regulation of the PI3K‐AKT signaling pathway. It may serve as a promising therapeutic target and prognostic biomarker for NPC. ABSTRACT Epigenetic regulation plays a crucial role in the development of nasopharyngeal carcinoma (NPC).
Jinping Xu, Cancan Chen, Bin Zhang, Shufang Liao, Yunyan Mo, Rongjun Zhang, Xiangyun Kong, Wei Jiang   +7 more
wiley   +1 more source

High-performance motor drives [PDF]

, 2011
This article reviews the present state and trends in the development of key parts of controlled induction motor drive systems: converter topologies, modulation methods, as well as control and estimation techniques.
García Franquelo, Leopoldo, Kazmierkowski, Marian P., León Galván, José Ignacio, Pérez, Marcelo, Rodríguez, José   +4 more
core   +1 more source

Harmonized Protocol for Subfield Segmentation in the Hippocampal Body on High‐Resolution In Vivo MRI From the Hippocampal Subfields Group (HSG)

Hippocampus, Volume 36, Issue 2, March 2026.
ABSTRACT Hippocampal subfields differentially develop and age, and they vary in vulnerability to neurodegenerative diseases. Innovation in high‐resolution imaging has accelerated clinical research on human hippocampal subfields, but substantial differences in segmentation protocols impede comparisons of results across laboratories.
Ana M. Daugherty, Valerie Carr, Kelsey L. Canada, Gustaf Rådman, Thackery Brown, Jean Augustinack, Katrin Amunts, Arnold Bakker, David Berron, Alison Burggren, Gael Chetelat, Robin de Flores, Song‐Lin Ding, Yushan Huang, Elliott Johnson, Prabesh Kanel, Attila Keresztes, Olga Kedo, Kristen M. Kennedy, Joshua Lee, Nikolai Malykhin, Anjelica Martinez, Susanne Mueller, Elizabeth Mulligan, Noa Ofen, Daniela Palombo, Lorenzo Pasquini, John Pluta, Naftali Raz, Tracy Riggins, Karen M. Rodrigue, Samaah Saifullah, Margaret L. Schlichting, Craig Stark, Lei Wang, Paul Yushkevich, Renaud La Joie, Laura Wisse, Rosanna Olsen, Alzheimer’s Disease Neuroimaging Initiative, Hippocampal Subfields Group   +40 more
wiley   +1 more source

High-Efficiency NPC Multilevel Converter Using Super-Junction MOSFETs [PDF]

, 2016
Super-junction MOSFETs exhibit low on-state resistances and low switching losses. However, the reverse recovery behavior of their intrinsic diodes and their output capacitance characteristics make their deployment in freewheeling locations challenging ...
Anthony, Philip H, McNeill, J N, Yuan, Xibo   +2 more
core   +3 more sources