Results 41 to 50 of about 178 (97)

Differential Wye Modular Multilevel AC Converter (DW-M2AC) for Direct AC/AC Power Conversion [PDF]

open access: yes, 2022
Direct AC/AC MMCs are used in a wide variety of power system applications such as interconnecting asynchronous grids with different frequencies, renewable energy integrations and medium voltage variable frequency motor drives. Due to the advantages such
Herathge, Shehan S
core   +2 more sources

Optimization of the passive components of the Modular Multilevel Matrix Converter for Drive Applications [PDF]

open access: yes, 2012
The Modular Multilevel Matrix Converter (M3C) is a new topology which extends the Modular Multilevel Converter (M2C) family for converters to low speed drive applications. The energy pulsation and therefore the amount of the installed capacitance is very
Braun, Michael   +2 more
core   +2 more sources

Modulation Strategy of a 3 × 5 Modular Multilevel Matrix Converter

open access: yesEnergies, 2018
In this paper, a modulation strategy of a 3 × 5 modular multilevel matrix converter (M3C) is proposed. The circuit of 3 × 5 M3C is firstly introduced. Then, operation rules of 3 × 5 M3C are illustrated, and a connection pattern of branches is determined ...
Rutian Wang   +4 more
doaj   +1 more source

A branch current reallocation based energy balancing strategy for the modular multilevel matrix converter operating around equal frequency [PDF]

open access: yes, 2017
Modular multilevel matrix converter (M3C) is a promising topology for medium-voltage high-power applications. Due to the modular structure, it features easy scalability, high quality output waveforms and superior fault tolerance.
Fan, Boran   +4 more
core   +3 more sources

Hybrid control approach for fast switching MMCs

open access: yesThe Journal of Engineering, Volume 2019, Issue 17, Page 3933-3936, June 2019., 2019
This study presents a new hybrid control approach for different control and switching frequencies for converters of the modular multi‐level converter (MMC) family. Using this concept, it is possible to achieve a higher switching frequency and output voltage update frequency than the MMC control frequency.
Mathias Schnarrenberger   +2 more
wiley   +1 more source

Virtual synchronous generator control strategy of M3C converter in fractional frequency offshore wind power system

open access: yes电力工程技术
In this paper, the control strategy of modular multilevel matrix converter (M3C) is studied in the scenario of fractional frequency offshore wind power.
HAN Huachun   +4 more
doaj   +1 more source

Topologies and control of low‐frequency alternating current for offshore wind farms based on modular multilevel matrix converter

open access: yesThe Journal of Engineering, Volume 2019, Issue 16, Page 2271-2277, March 2019., 2019
As a new alternative to power transmission, low‐frequency alternating current (LFAC) transmission system has a bright future for offshore wind power transmission. As a core equipment for LFAC system, modularised multi‐level matrix converter (M3C) is a direct electric energy conversion device, which can achieve bi‐directional power flow and provide any ...
Chang Yuan, Ruibing Zhou, Ming Tong
wiley   +1 more source

Overload Capability of the Modular Multilevel Matrix Converter for Feeding High Torque Low Speed Drives [PDF]

open access: yes, 2014
In drive systems, the semiconductors of conventional converters must be dimensioned for the maximum torque. This results in a converter oversizing even for short time overload requirements near standstill, e.g. for mills in the mining industry.
Braun, Michael   +3 more
core   +2 more sources

Comparison of full power frequency converter topologies for large capacity variable speed pumped storage units

open access: yes电力工程技术
Variable speed pumped storage units have obvious advantages in efficiency and adaptability under various operation conditions compared with traditional fixed-speed pumped storage units.
Bo ZHAO   +5 more
doaj   +1 more source

A branch current reallocation based energy balancing strategy for the modular multilevel matrix converter operating around equal frequency [PDF]

open access: yes, 2016
The Modular multilevel matrix converter (M3C) is a promising topology for medium-voltage, high-power applications. Due to the modular structure, it is scalable, produces high quality output waveforms and can be fault tolerant.
Fan, Boran   +4 more
core  

Home - About - Disclaimer - Privacy