Results 1 to 10 of about 1,978 (161)
Enhanced Voltage Sorting Algorithm for Balancing the Capacitor Voltage in Modular Multilevel Converter [PDF]
IEEE Access, 2021 In this paper, an enhanced voltage sorting algorithm is proposed for balancing each sub module capacitor voltage in modular multilevel converter (MMC).
Hidayathullah Mohamed Ismail +1 more
doaj +2 more sources
IEEE Access, 2019 The five-level hybrid clamped inverter (5L-HC) is a promising new topology for medium-voltage applications. However, to minimize the capacitors and ensure good performance of the converter, capacitor voltage ripples, as well as voltage balancing control,
Ze Wang +4 more
doaj +3 more sources
Capacitor Voltages Measurement and Balancing in Flying Capacitor Multilevel Converters Utilizing a Single Voltage Sensor [PDF]
IEEE Transactions on Power Electronics, 2017 This paper proposes a new method for measuring capacitor voltages in multilevel flying capacitor (FC) converters that requires only one voltage sensor per phase leg. Multiple dc voltage sensors traditionally used to measure the capacitor voltages are replaced with a single voltage sensor at the ac side of the phase leg.
Amer Mohammad Yusuf Mohammad Ghias +2 more
exaly +2 more sources
Capacitor Voltage Balancing Control for Flying Capacitor Multilevel Inverter [PDF]
Journal of Electrical and Electronics Engineering, 2014 This paper presents a control scheme for full bridge flying capacitor inverter to achieve balancing voltages on inverter capacitors. It examines the effects on the output voltage inverter, and then it realizes two control schemes that will balance the ...
ŞCHIOP Adrian
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A 13-level switched-capacitor-based multilevel inverter with reduced components and inrush current limitation [PDF]
Scientific ReportsThis paper proposed a hybrid switched-capacitor inverter to reduce the number of components and achieve automatic capacitor balancing. The proposed structure combines a switched capacitor (SC) unit with a flying capacitor (FC).
Hossein Mansourizadeh +3 more
doaj +2 more sources
Capacitor voltage balancing strategy based on sub-module capacitor voltage estimation for modular multilevel converters [PDF]
CSEE Journal of Power and Energy Systems, 2016 The modular multilevel converter (MMC) is expected to be used extensively in high-voltage direct current (HVDC) transmission networks because of its superior characteristics over the line-commutated converter (LCC). A key issue of concern is balancing sub-module capacitor voltages in the MMCs, which is critical for the correct operation of these ...
Alison L Griffiths, Mostafa I Marei
exaly +2 more sources
Kongzhi Yu Xinxi Jishu, 2023 The neutral point clamped (NPC) three-level dual-active bridge (DAB) converter can be applied at higher voltage levels and in a wider operating range than the traditional DAB converter, and therefore it is more promising in future applications.
LIU Chao, LI Chi
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IEEE Access, 2021 The modular and voltage scalable features of modular structure based power converter has attracted for wide power range applications. However, balancing the capacitor voltage becomes complex when the number of sub modules is increased.
Hidayathullah Mohamed Ismail +2 more
doaj +1 more source
Energies, 2021 A large number of modular multilevel converters (MMC) are connected to HVDC transmission systems nowadays. This paper aims at the short-circuit fault in the DC line of the HVDC transmission system and the problem of capacitor voltage imbalance in MMC ...
Yuqi Pang +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