Results 1 to 10 of about 951 (185)

A centralized local energy storage modular multilevel converter

open access: yesFrontiers in Energy Research, 2022
The energy storage modular multilevel converter (MMC-ES) has been widely studied for its excellent performance in solving the problems of power difference, voltage fluctuation and effective improvement of power quality in the grid caused by the ...
Ning Li   +5 more
doaj   +1 more source

Design of internal dynamics based MMC controller for HVDC transmission

open access: yesEnergy Conversion and Economics, 2020
Currently, the modular multilevel converter (MMC) is the most advanced voltage source converter topology. Because the MMC is a converter topology, the most common approach for controller design is considering the conventional converter model to design ...
Ankit Yadav   +2 more
doaj   +1 more source

A hybrid arm‐multiplexing MMC for DC fault ride‐through without blocking

open access: yesIET Renewable Power Generation, 2023
Considering both the DC fault ride‐through (FRT) and lightweight requirements of modular multilevel converter (MMC), this paper proposes a hybrid arm‐multiplexing modular multilevel converter (HAM‐MMC).
Yi Wang, Yuwei Li, Chen Wang, Jianye Tao
doaj   +1 more source

Phase Sequence Exchange Technology Based on MMC for Improving the Power Angle Stability of Power Systems

open access: yesEnergies, 2022
Power angle stability of power systems is one of the main factors which restricts the power transmission capacity. In order to prevent the power angle instability of power systems, phase sequence exchange (PSE) is a recently developed emergency control ...
Peng Dong   +6 more
doaj   +1 more source

A Hybrid Modular Multilevel Converter with Partial Embedded Energy Storage

open access: yesEnergies, 2016
Modular and cascaded multilevel converters provide a functional solution for the integration of energy storage systems (ESSs). This paper develops a hybrid multilevel converter based on the modular multilevel converter (MMC) that can be functionally ...
Georgios Konstantinou   +3 more
doaj   +1 more source

An Improved Phase-Disposition Pulse Width Modulation Method for Hybrid Modular Multilevel Converter

open access: yesEnergies, 2023
The hybrid modular multilevel converter (MMC) consisting of half-bridge submodules (HBSMs) and full-bridge submodules (FBSMs) is a promising solution for overhead lines high-voltage direct current systems (HVDC) due to the advantages of direct current ...
Fayun Zhou   +5 more
doaj   +1 more source

Joint Limiting Control Strategy Based on Virtual Impedance Shaping for Suppressing DC Fault Current and Arm Current in MMC-HVDC Systems

open access: yesJournal of Modern Power Systems and Clean Energy, 2023
This paper proposes a joint limiting control strategy for suppressing DC fault current and arm current in modular multilevel converter-based high-voltage direct current (MMC-HVDC) systems, which includes two target-oriented current limiting controls.
Qin Jiang   +6 more
doaj   +1 more source

Modular Multilevel Converter (MMC) Modeling Considering Submodule Voltage Sensor Noise

open access: yesIEEE Transactions on Power Electronics, 2021
The modular multilevel converter (MMC) is a popular topology in medium- and high-voltage applications, and many efforts have been spent on MMC modeling. However, the impact of submodule voltage sensor noise (SVSN), which becomes more severe due to increasing switching speed of power semiconductors and compact submodule design, has not been considered ...
Shiqi Ji   +4 more
openaire   +2 more sources

Short-Circuit Fault Current Calculation Method for the Multi-Terminal DC Grid Considering the DC Circuit Breaker

open access: yesEnergies, 2020
The analysis and calculation of the short-circuit fault current in the DC grid is of great significance to the design and configuration of the converter station and DC circuit breaker parameters.
Haipeng Jia   +5 more
doaj   +1 more source

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

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