Review of dual-active-bridge converters with topological modifications

L Li, G Xu, D Sha, Y Liu, Y Sun… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
The dual-active-bridge (DAB) converters inherit favorite features including zero-voltage
switching (ZVS) capability, wide voltage range, and natural bidirectional power flow. Facing …

Inherent SM voltage balance for multilevel circulant modulation in modular multilevel DC–DC converters

S Fan, X Xiang, J Sheng, Y Gu, H Yang… - … on Power Electronics, 2021 - ieeexplore.ieee.org
The modularity of a modular multilevel dc converter (MMDC) makes it attractive for medium-
voltage distribution systems. Inherent balance of submodule (SM) capacitor voltages is …

Coprime Polynomial Based Dual-Circulant Modulation for Inherent Submodule Voltage Balancing in MMDC

S Fan, X Xiang, C Li, Y Gu, H Yang, W Li… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
The modular multilevel dc–dc converters (MMDCs) have attracted much interest in medium
voltage dc applications, but have to face the main issue of balancing submodule (SM) …

Analysis of capacitor charging characteristics and low-frequency ripple mitigation by two new voltage-balancing strategies for MMC-based solid-state transformers

L Zhang, J Qin, Y Zou, Q Duan… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
This article investigates and compares various modulation methods and capacitor voltage-
balancing algorithms of a modular multilevel converter for solid-state transformer …

Optimal Circulant Modulation for Submodule Voltage Ripple Minimization With Inherent Balancing Capability in Modular Multilevel DC-DC Converters

S Fan, X Xiang, Y Gu, H Yang, W Li… - … on Power Electronics, 2023 - ieeexplore.ieee.org
The modularity of the modular multilevel dc-dc converters (MMDCs) makes them a
competitive candidate in medium voltage applications but brings the submodule (SM) …

Dual-Circulant Modulation for Modular Multilevel DC/DC Converters With Inherent Balance Capability

J Duan, D Zhang, X Wang, R Gu… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Modular multilevel dc/dc converters (MMDC) have emerged recently for medium-voltage dc
applications. Under single-circulant modulation, the submodule (SM) capacitor voltages in …

Optimal Circulant Modulation for Submodule Capacitor Ripple Minimization and Inherent Voltage Balancing in Modular Multilevel DC Converters

S Fan, X Xiang, Y Gu, H Yang, W Li… - 2023 IEEE 14th …, 2023 - ieeexplore.ieee.org
Modular multilevel dc-dc converters (MMDCs) have attracted much interests in medium
voltage dc applications, but it has to face the main issue of balancing submodule (SM) …

Trapezoidal current modulation for a compact DC modular multilevel converter with ZVS of submodules and ZCS of voltage-balancing circuits

G Zheng, Y Chen, Y Kang - IEEE Transactions on Power …, 2021 - ieeexplore.ieee.org
In this letter, a trapezoidal current modulation is proposed for a compact dc–dc modular
multilevel converter with reduced submodule (SM) number and magnetic integration. The …

An Interleaved Current-Fed Integrated LLC Resonant Converter With Input Current Ripple Cancellation

R Gu, D Zhang, J Duan, A Li - IEEE Transactions on Industrial …, 2024 - ieeexplore.ieee.org
This article proposes an interleaved current-fed integrated LLC (ICFI-LLC) resonant
converter with input current ripple cancellation for wide voltage range applications. The …

A Series-Arm Modular Multilevel DC/DC Converter with Variable Duty Cycle Quasi-Square-Wave Modulation for ZVS Operation

H Jin, W Chen, Y Wang, Y Yuan - IEEE Transactions on Power …, 2024 - ieeexplore.ieee.org
A series-arm modular multilevel dc/dc converter is proposed in this article, which is suitable
for dc transformer applications in medium-voltage (MV) dc systems. The proposed converter …