Results 51 to 60 of about 347,837 (349)

Wide input-voltage range boost three-level DC-DC converter with quasi-Z source for fuel cell vehicles [PDF]

, 2016
To solve the problem of the mismatched voltage levels between the dynamic lower voltage of the fuel cell stack and the required constant higher voltage (400V) of the DC link bus of the inverter for fuel cell vehicles, a Boost three-level DC-DC converter ...
Li, Jing, Shi, Jilong, Sumner, Mark, Wang, Ping, Xia, Changliang, Zhang, Yun, Zhou, Lei   +6 more
core   +1 more source

Passive Capacitor Voltage Balancing of SiC-Based Three-Level Dual-Active-Bridge Converter Using Hybrid NPC-Flying Capacitor Structure

IEEE transactions on power electronics, 2022
Three-level (TL) dual-active-bridge (DAB) converter serves a critical role in the medium-voltage (MV) solid-state-transformers in which high voltage rating and bidirectional power flow are required.
Hao Feng, Feifei Teng, O. Montes, M. Awal, Md Rashed Hassan Bipu, I. Husain, S. Lukic   +6 more
semanticscholar   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Model Predictive Control of Four-Leg Three-Level Flying Capacitor Converter: Influence of Model Parameter Mismatch

Power Electronics and Drives, 2018
This paper presents a control method for a four-leg three-level flying capacitor converter (FCC) operating as a shunt active power filter (SAPF), based on model predictive control with finite number of control states (FS-MPC).
Antoniewicz Kamil, Rafal Krzysztof, Jasinski Marek   +2 more
doaj   +1 more source

Impact of the flying capacitor on the boost converter [PDF]

, 2016
This paper illustrates the impact of including a flying capacitor in a Boost converter. Both topologies, Boost and Boost with Flying Capacitor, are compared in terms of efficiency and volume.
Alou Cervera, Pedro, Cobos Márquez, José Antonio, Cordón, Víctor, Oliver Ramírez, Jesús Angel, Serrano, Diego, Vasic, Miroslav   +5 more
core  

Power loss investigation in HVDC for cascaded H-bridge multilevel inverters (CHB-MLI) [PDF]

, 2015
In the last decade, the use of voltage-source multilevel inverters in industrial and utility power applications has been increased significantly mainly due to the many advantages of multilevel inverters, compared to conventional two level inverters ...
Alamri, B, Darwish, M
core   +1 more source

Unlocking the Power of Quercetin‐Encapsulated Mesoporous Bioactive Glass Nanoparticles: A Multifunctional Approach to Bone Regeneration

Advanced Engineering Materials, EarlyView.
Mesoporous bioactive glass nanoparticles (MBGNs) are investigated for bone regeneration given their remarkable structural and functional properties. MBGNs are functionalized with Mn and Cu and incorporated with quercetin, a natural flavonoid exhibiting antioxidant, anti‐inflammatory, and antimicrobial properties.
Giovanni Lo Bello, Qaisar Nawaz, Pier Francesco Ferrari, Laura Pastorino, Roberto Raiteri, Aldo R. Boccaccini   +5 more
wiley   +1 more source

A novel carrier interleaved PWM method for four-level nested neutral-point-clamped inverters

iEnergy
The four-level nested neutral-point-clamped (4L-NNPC) inverter is a competitive topology among the various medium-voltage multilevel converters, and its main issue is flying-capacitor voltage unbalance.
Wei Zhou, Jupeng Pang, Mingzhe Wu, Chao Wang, Kui Wang, Yongdong Li   +5 more
doaj   +1 more source

Modeling Control and Robustness Assessment of Multilevel Flying-Capacitor Converters

Energies, 2021
When performing AC/DC-DC/AC power conversions, multilevel converters provide several advantages as compared to classical two-level converters. This paper deals with the dynamic modeling, control, and robustness assessment of multilevel flying-capacitor ...
Roberto Zanasi, Davide Tebaldi
doaj   +1 more source

Design and comparison of 11 kV multilevel voltage source converters for local grid based renewable energy systems [PDF]

, 2011
Because the availability of renewable energy is highly variable and the power demand by the consumers could have a very different characteristic, it is very desirable to connect a renewable generation system to the grid.
Dorrell, D, Guo, Y, Islam, MR, Zhu, JG
core   +1 more source