Results 21 to 30 of about 4,785 (242)

d-q Small-Signal Model for Grid-Forming MMC and Its Application in Electromagnetic-Transient Simulations

open access: yesEnergies, 2023
The modular multilevel converter (MMC) is a keystone of modern energy transmission systems. Consequently, there is an ongoing pursue for mathematical models to represent it under different configurations and control approaches.
Cleiton M. Freitas   +2 more
doaj   +1 more source

An optimal full frequency control strategy for the modular multilevel matrix converter based on predictive control [PDF]

open access: yes, 2017
The modular multilevel matrix converter (M3C) is a promising topology for high-voltage high-power applications. Recent researches have proved its significant advantages for adjustable-speed motor drives compared with the back-to-back modular multilevel ...
Fan, Boran   +4 more
core   +1 more source

Solid state transformer technologies and applications: a bibliographical survey [PDF]

open access: yes, 2018
This paper presents a bibliographical survey of the work carried out to date on the solid state transformer (SST). The paper provides a list of references that cover most work related to this device and a short discussion about several aspects.
Adabi Firouzjaee, Mohammad Ebrahim   +1 more
core   +3 more sources

Modular Multilevel Matrix Converter as Solid State Transformer for Medium and High Voltage AC Substations [PDF]

open access: yesIEEE Transactions on Power Delivery, 2022
The use of power converters as solid state transformer is an attractive solution to modernize the power network, but this solution has not been fully addressed for MV and HV substations. This paper presents a customized and simple control for the Modular Multilevel Matrix Converter (M3C), specially conceived for its operation on synchronous ports ...
Pablo Bravo   +5 more
openaire   +3 more sources

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

An integrated converter and machine control system for MMC-based high power drives [PDF]

open access: yes, 2018
The Modular Multilevel Converter (MMC) is a promising topology for high power drive applications. However, large voltage fluctuations are produced in the floating capacitors when the machine is operating with high stator currents at low rotational speed.
Cardenas, Roberto   +6 more
core   +2 more sources

Machine learning based model predictive control for grid connected enhanced switched capacitor cross‐connected switched multi‐level inverter (ESC3SMLI)

open access: yesIET Power Electronics, EarlyView., 2023
This article describes an enhanced switched capacitor cross‐connected switched multilevel inverter (ESC3SMLI) with machine learning‐based model‐predictive control (ML‐MPCM). An improved switched capacitor cross connected switched multilevel inverter featuring minimal devices are presented. The proposed ESC3SMLI produces nine levels using eight switches,
Arun Vijayakumar   +4 more
wiley   +1 more source

An enhanced dq-based vector control system for modular multilevel converters feeding variable speed drives [PDF]

open access: yes, 2016
Modular multilevel converters (M2C) are considered an attractive solution for high power drive applications. However, energy balancing within the converter is complex to achieve, particularly when the machine is operating at low rotational speeds.
Cardenas, Roberto   +3 more
core   +2 more sources

A double T‐type H‐bridge reduced switch multilevel inverter for a wide range of DC voltage variations

open access: yesIET Power Electronics, EarlyView., 2023
This paper proposes a new Double T‐type H‐bridge (DTH) module configuration that can produce 9, 13, 17, 19, 21, and 25 levels using reduced components. Abstract Renewable energy sources are subject to input source uncertainties, which can negatively impact output voltage THD.
Omid Zolfagharian   +2 more
wiley   +1 more source

Generalized switching function model of modular multilevel converter [PDF]

open access: yes, 2015
This paper presents a generalized switching function model of the modular multilevel converter (MMC) that can be used instead of MMC electromagnetic transient simulation model for full-scale simulations of high-voltage dc (HVDC) and flexible ac ...
Adam, G.P.   +3 more
core   +1 more source

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