Results 31 to 40 of about 5,475 (232)

Unidirectional DC/DC modular multilevel converter for offshore windfarm with the control strategy based on stationary frame

open access: yesThe Journal of Engineering, 2019
This paper presents the design and control of an advanced unidirectional DC/DC modular multilevel converter (MMC) that facilitate the integration of off-shore windfarms with the high-voltage direct current (HVDC) transmission system.
He Liu   +4 more
doaj   +1 more source

Structural Analysis and Modular Control Law for Modular Multilevel Converter (MMC)

open access: yes, 2020
This paper proposes an in-depth analysis from the control point of view of dynamic models of a modular multilevel converter (MMC) for high-voltage direct current (HV-DC) application. Firstly, a generic method of analysis is presented for a natural arm-level state-space model. Its structural analysis highlights the decoupled nature of the MMC. Secondly,
Steckler, Pierre-Baptiste   +3 more
openaire   +2 more sources

The Series Bridge Converter (SBC): design of a compact modular multilevel converter for grid applications [PDF]

open access: yes, 2016
This paper presents a novel hybrid modular multilevel voltage source converter suitable for grid applications. The proposed converter retains the advantages of other modular multilevel topologies and can be made more compact making it attractive for ...
Amankwah, Emmanuel K.   +6 more
core   +1 more source

Modelling and Control of the Modular Multilevel Converter (MMC)

open access: yesEnergy Procedia, 2012
AbstractThe Modular Multilevel Converter (MMC) represents an emerging topology with a scalable technology making high voltage and power capability possible. The MMC is built up by identical, but individually controllable submodules. Therefore the converter can act as a controllable voltage source, with a large number of available discrete voltage steps.
Abildgaard, Elisabeth N., Molinas, Marta
openaire   +1 more source

Analysis and hardware testing of cell capacitor discharge currents during DC faults in half-bridge modular multilevel converters [PDF]

open access: yes, 2015
This paper focuses on the behaviour of the cell capacitor discharge currents during DC faults in half-bridge modular multilevel converters. Active switches, not designed for fault conditions, are tripped to minimize discharge currents effect on the ...
Aboushady, A.A., Ahmed, K.H., Jovcic, D.
core   +2 more sources

Controlled transition full-bridge hybrid multilevel converter with chain-links of full-bridge cells [PDF]

open access: yes, 2016
This paper proposes a controlled transition full-bridge (CTFB) hybrid multilevel converter (HMC) for medium and high voltage applications. It employs a full-bridge cell chain-link (FB-CL) between the two legs in each phase to generate multilevel bipolar ...
Adam, Grain Philip   +3 more
core   +1 more source

The sub-module voltage-balanced control strategy of mmc-HVDC based on model prediction control

open access: yesThe Journal of Engineering, 2019
The modular multilevel converter (MMC) has the advantages of high efficiency, low harmonic, modular design, and easy cascade, which has been widely used in the field of high voltage and large capacity energy conversion.
Ming-Guang Zhang, Bo Li
doaj   +1 more source

Cost Analysis and Comparison between Modular Multilevel Converter (MMC) and Modular Multilevel Matrix Converter (M3C) for Offshore Wind Power Transmission [PDF]

open access: yes15th IET International Conference on AC and DC Power Transmission (ACDC 2019), 2019
This paper focuses on the cost analysis of offshore wind power system using Modular Multilevel Converter (MMC) based HVDC or Modular Multilevel Matrix Converter (M3C) based fractional frequency transmission (FFT). Capital investment and long-term costs due to unavailability, Operation & Maintenance and power loss are analysed.
null Jiajie Luo   +4 more
openaire   +1 more source

Mixed cells modular multilevel converter [PDF]

open access: yes, 2014
This paper uses a scaled down version of the mixed cells modular multilevel converter (MMC) to discuss its modulation and capacitor voltage balancing method, and investigates its AC and DC fault ride-through capability.
Adam, G. P., Ahmed, K.H., Williams, B.W.
core   +1 more source

Thyristor based modular multilevel converter with active full-bridge chain-link for forced commutation [PDF]

open access: yes, 2016
Voltage source converter (VSC) such as modular multilevel converter (MMC) has been intensively studied for high voltage direct current (HVDC) applications due to its flexible terminal voltage adjustment, compatibility with weak ac grid and independent ...
Finney, Stephen   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy