Results 1 to 10 of about 239 (100)
Hard- and software of real time simulation tools of Electric Power System for adequate modeling power semiconductors in voltage source convertor based HVDC and FACTS [PDF]
MATEC Web of Conferences, 2014 The motivation of the presented research is based on the needs for development of new methods and tools for adequate simulation of Flexible Alternating Current Transmission System (FACTS) devices and High Voltage Direct Current Transmission (HVDC) system as part of real electric power systems (EPS).
Ufa Ruslan A. +2 more
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State-variable approach to analysis of power systems including HVDC convertors
International Journal of Electrical Power & Energy Systems, 1987 Abstract A new method is presented for the analysis of power systems including static convertors. The basic feature of the proposed method is that the state equations of each component of a power system can be written separately by considering fictitious sources at their terminals.
A. Lygdis +3 more
openaire +2 more sources
IET Energy Systems Integration, 2021 This article proposes a new topology of a cascaded modular multi‐level converter (MMC) based on the current‐fed quadruple active bridge (CFQAB) converters for grid integration of photovoltaic (PV) systems.
Zahra Malekjamshidi, Mohammad Jafari
doaj +1 more source
IET Power Electronics, 2023 This study presents a submodule capacitor voltage self‐balancing method for modular multilevel converters (MMCs) based on switching state matrix construction, which has an advantage over eliminating massive sensor demanding and alleviating computational ...
Zhou Yiyuan +7 more
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IET Renewable Power Generation, 2023 The diode rectifier unit (DRU) is promising in offshore wind power integration due to its reliability and economy. Offshore AC voltage control is the key technology of the DRU‐based scheme. In this paper, a low‐cost offshore wind power integration system
Yanqiu Jin +4 more
doaj +1 more source
IET Generation, Transmission & Distribution, 2023 With the increasing penetration of power electronics, grid‐forming modular multilevel converters (MMCs) have attracted great attention in the upcoming MMC‐based high‐voltage direct current transmission (HVDC) projects. Power synchronization control (PSC)
Hanlin Guo, Zheren Zhang, Zheng Xu
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High Voltage, 2021 A previously unidentified duality between buck and boost configured dc‐ac modular multilevel converters (MMCs) is firstly revealed. Armed with this insight, a new dual‐active‐bridge (DAB)‐MMC is proposed for high‐voltage dc (HVDC)‐to‐medium‐voltage dc ...
Sunny Kung +5 more
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A three‐stage switching MMC topology for capacitor voltage ripple reduction in HVDC applications
IET Generation, Transmission & Distribution, 2023 Modular multi‐level converters (MMCs) are a mainstay in many HVDC transmission projects worldwide. Half‐bridge MMC (HB‐MMC) is mostly used in the current project. The large capacitor of sub modules (SMs) is often required in MMC to ensure the low voltage
Qiang Fan +4 more
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Steady‐state power operation region of a modular multilevel converter connecting to an AC grid
High Voltage, 2021 The modular multilevel converter (MMC) has become a widely used topology for voltage source converter–based high‐voltage direct current transmission projects.
Jiecong Wang +4 more
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IET Power Electronics, 2023 In order to improve the performance of the transformerless modular multilevel converters (MMC) under AC and DC grid fault conditions, this paper proposes an improved four‐layer capacitor voltage control strategy combined with arm current control.
Dan Liu +5 more
doaj +1 more source