Results 51 to 60 of about 584,665 (212)

Pre-charging control strategy of modular multilevel inverter

Gong-kuang zidonghua, 2019
According to operation characteristics of mine hoist, a back-to-back modular multilevel converter composed of modular multilevel rectifier and modular multilevel inverter was used for control of mine hoist.
ZHU Qixian, QI Gang, WEI Yongwu, WANG Xinggui   +3 more
doaj   +1 more source

A multilevel modular DC–DC converter topology [PDF]

Mathematics and Computers in Simulation, 2017
A multilevel modular DC-DC power conversion topology based on cascaded H-Bridge converters in a double П configuration is presented. The topology is intended to interconnect large power DC networks. A two level control hierarchy is used to regulate the DC voltage of each H-bridge module.
Ricardo Vidal, Diego Soto, Iván Andrade, Javier Riedemann, Cristián Pesce, Enrique Belenguer, Ruben Pena, Ramon Blasco-Gimenez   +7 more
openaire   +7 more sources

Application of soft computing algorithms for hybrid modular multilevel inverters

Measurement: Sensors
This study utilized Harris Hawk optimization to analyze the harmonic distortions of a symmetric capacitor based multilevel converter. The proposed multilevel converter uses identical and symmetric DC sources in its input.
Devineni Gireesh Kumar, Nagineni Venkata Sireesha, Neerudi Bhoopal, Ranjith Kumar Gatla, Hossam Kotb, Kareem M. AboRas, Ali Elrashidi, Mohammed Alqarni, Yazeed Yasin Ghadi, Adel Oubelaid   +9 more
doaj   +1 more source

Design and Implementation of Multilevel Inverters for Fuel Cell Energy Conversion System

IEEE Access, 2020
Power converter plays a significant role in Proton Exchange Membrane Fuel Cell (PEMFC) energy generation systems, which is an alternative of distributed energy generation systems.
C. Dhanamjayulu, Shaik Reddi Khasim, Sanjeevikumar Padmanaban, G. Arunkumar, Jens Bo Holm-Nielsen, Frede Blaabjerg   +5 more
doaj   +1 more source

Cell capacitor sizing in multilevel converters: cases of the modular multilevel converter and alternate arm converter [PDF]

IET Power Electronics, 2015
Multilevel converters, such as the modular multilevel converter (MMC) or the alternate arm converter (AAC), rely on charged capacitors in their cells to generate their AC voltage waveform. Since the cell capacitors are physically large and occupy approximately half the cell volume, their capacitance must be kept minimal while limiting the voltage ...
Merlin, MMC, Green, TC
openaire   +3 more sources

Switching Loss Reduction for an MMC-Fed AC/DC Converter

IEEE Open Journal of Power Electronics
Medium-voltage connected ultra-fast chargers are getting more popular for charging electric vehicles with large battery capacities. Here, the solution based on a modular multilevel converter is more promising, since the isolation stage can be realized as
Kaveh Pouresmaeil, Maurice G.L. Roes, Nico H. Baars, Cornelis G.E. Wijnands   +3 more
doaj   +1 more source

A Back-to-Back 2L-3L Grid Integration of a Marine Current Energy Converter

Energies, 2015
The paper proposes a back-to-back 2L-3L grid connection topology for a marine current energy converter. A prototype marine current energy converter has been deployed by a research group at Uppsala University.
Senad Apelfröjd, Rickard Ekström, Karin Thomas, Mats Leijon   +3 more
doaj   +1 more source

The age of multilevel converters arrives [PDF]

IEEE Industrial Electronics Magazine, 2008
This work is devoted to review and analyze the most relevant characteristics of multilevel converters, to motivate possible solutions, and to show that we are in a decisive instant in which energy companies have to bet on these converters as a good solution compared with classic two-level converters. This article presents a brief overview of the actual
García Franquelo, Leopoldo, Rodríguez, José, León Galván, José Ignacio, Kouro, Sqamir, Martín Prats, María de los Ángeles, Portillo Guisado, Ramón Carlos   +5 more
openaire   +5 more sources

Efficiency Performance of 7-Level Multiplexed and 3-Level Neutral Point Clamped (NPC) Converters

Energies
In medium-voltage AC applications, multilevel converters are essential due to their ability to achieve high efficiency and significantly reduce total harmonic distortion (THD), ensuring improved performance and power quality.
Shafquat Hussain, Simone Cosso, Massimiliano Passalacqua, Luis Ramon Vaccaro, Andrea Formentini, Mario Marchesoni   +5 more
doaj   +1 more source

Single DC-Sourced 9-level DC/AC Topology as Transformerless Power Interface for Renewable Sources

Energies, 2015
This paper introduces an advanced transformerless multilevel hybrid-conversion topology intended for the interconnection of renewable DC sources at small-scale. The most important contribution presented in this paper is the generation of two isolated DC
Juan R. Rodriguez-Rodríguez, Vicente Venegas-Rebollar, Edgar L. Moreno-Goytia   +2 more
doaj   +1 more source