New modular multilevel converter with power channels between upper-and lower arms suitable for MV drives

L He, K Zhang, J Xiong, S Fan… - 2015 IEEE Applied …, 2015 - ieeexplore.ieee.org
When a modular multilevel converter (MMC) is operated at low frequencies, the submodule
(SM) capacitors will suffer from huge voltage fluctuations. This problem must be overcome …

Modular multilevel converter with three-port power channels for medium-voltage drives

X Huang, Z Wang, Z Kong, J Xiong… - IEEE Journal of …, 2017 - ieeexplore.ieee.org
Due to advantages such as modular design, scalability, and excellent harmonic
performance, modular multilevel converter (MMC) has drawn more and more attention in …

A modular multilevel converter topology with novel middle submodules to reduce capacitor voltage fluctuations

DD Le, DC Lee - IEEE Transactions on Power Electronics, 2021 - ieeexplore.ieee.org
This letter proposes a modified topology of modular multilevel converter for medium-voltage
applications, which can reduce the ac-voltage fluctuation in the submodule (SM) capacitor at …

Capacitance reduction of the hybrid modular multilevel converter by decreasing average capacitor voltage in variable-speed drives

S Zhou, B Li, M Guan, X Zhang, Z Xu… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
Modular multilevel converters (MMCs) represent an emerging topology in medium-voltage
(MV) and high-voltage applications. But for MV variable-speed motor drives, the MMC faces …

A modular multilevel series/parallel converter for a wide frequency range operation

Z Li, R Lizana, Z Yu, S Sha… - … on Power Electronics, 2019 - ieeexplore.ieee.org
When providing ac output, modular multilevel converters (MMCs) experience power
fluctuation in the phase arms. The power fluctuation causes voltage ripple on the module …

An inner current suppressing method for modular multilevel converters

Z Li, P Wang, Z Chu, H Zhu, Y Luo… - IEEE Transactions on …, 2013 - ieeexplore.ieee.org
Ideally, the inner (the upper or lower arm) current of a modular multilevel converter (MMC) is
ideally assumed to be the sum of a dc component and an ac component of the fundamental …

A modular multilevel converter with active power filter for submodule capacitor voltage ripples and power losses reduction

G Jia, M Chen, S Tang, C Zhang… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Modular multilevel converter (MMC) topology has been widely used in the medium-/high-
voltage applications. However, large capacitance is needed to suppress submodule (SM) …

Active power decoupling for submodules of a modular multilevel converter

Z Kong, X Huang, Z Wang, J Xiong… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
The modular multilevel converter (MMC) is receiving wide acceptance in both high-and
medium-voltage (MV) applications. However, due to the low (fundamental and second …

Maximum modulation index for modular multilevel converter with circulating current control

Y Li, X Shi, B Liu, F Wang, W Lei - 2014 IEEE Energy …, 2014 - ieeexplore.ieee.org
In a modular multilevel converter (MMC), the circulating current control is usually adopted. It
can minimize the circulating current in order to reduce the converter power loss, and also …

AC circulating currents suppression in modular multilevel converter

X She, A Huang, X Ni, R Burgos - IECON 2012-38th Annual …, 2012 - ieeexplore.ieee.org
Modular multilevel converter is a next generation multilevel converters for medium to high
voltage conversion applications, such as medium voltage motor drive and high voltage …