Results 21 to 30 of about 495 (98)

Computationally Efficient MPC for Modular Multilevel Matrix Converters Operating With Fixed Switching Frequency

open access: yesIEEE Open Journal of the Industrial Electronics Society, 2023
Modular multilevel matrix converters stand out for their performance in ac–ac high-power conversion. However, they require multiple control loops to govern the currents from both ac ports, the internal circulating currents, and the capacitor ...
Rodrigo H. Cuzmar   +5 more
doaj   +1 more source

Novel Distributed Control Platform and Algorithm for a Modular Multilevel Matrix Converter

open access: yesIEEE transactions on power electronics, 2023
The modular multilevel matrix converter (M3C) is an attractive topology for low-speed drives and doubly fed induction generator applications. Both modularity and scalability make the topology attractive for high-power medium-voltage systems.
Jonas Kienast   +3 more
semanticscholar   +1 more source

A Novel Control Scheme for Multi-Terminal Low-Frequency AC Electrical Energy Transmission Systems Using Modular Multilevel Matrix Converters and Virtual Synchronous Generator Concept

open access: yesEnergies, 2020
This paper proposes a new control scheme for the low frequency AC transmission (LFAC) system aiming at extending the point-to-point configuration to form a multi-terminal electrical energy network.
Mustafa Al-Tameemi   +4 more
doaj   +1 more source

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

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

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

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

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

open access: yesIEEE Transactions on Power Delivery, 2022
The use of power converters as solid state transformers is an attractive solution to modernize the power network, but this solution has not been fully addressed for MV and HV substations.
P. Bravo   +5 more
semanticscholar   +1 more source

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 Low‐Frequency Transformer Protection Method Based on Excitation Inductance Parameter Identification

open access: yesIET Electric Power Applications, Volume 19, Issue 1, January/December 2025.
In this paper, we propose a method to effectively identify faults and excitation inrush currents in the area by using the characteristics of instantaneous excitation inductance, so as to improve the reliability and accuracy of low‐frequency transformer protection in offshore wind power low‐frequency transmission system.
Shuping Gao   +6 more
wiley   +1 more source

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