Comparison of the modular multilevel DC converter and the dual-active bridge converter for power conversion in HVDC and MVDC grids
SP Engel, M Stieneker, N Soltau… - ieee transactions on …, 2014 - ieeexplore.ieee.org
It is expected that in the near future the use of high-voltage dc (HVDC) transmission and
medium-voltage dc (MVDC) distribution technology will expand. This development is driven …
medium-voltage dc (MVDC) distribution technology will expand. This development is driven …
Quasi two-level operation of modular multilevel converter for use in a high-power DC transformer with DC fault isolation capability
DC fault protection is one challenge impeding the development of multiterminal dc grids.
The absence of manufacturing and operational standards has led to many point-to-point …
The absence of manufacturing and operational standards has led to many point-to-point …
Fault detection and localization method for modular multilevel converters
The modular multilevel converter (MMC) is attractive for medium-or high-power applications
because of the advantages of its high modularity, availability, and high power quality …
because of the advantages of its high modularity, availability, and high power quality …
Analysis and design of a modular multilevel converter with trapezoidal modulation for medium and high voltage DC-DC transformers
Conventional dual-active bridge topologies provide galvanic isolation and soft-switching
over a reasonable operating range without dedicated resonant circuits. However, scaling the …
over a reasonable operating range without dedicated resonant circuits. However, scaling the …
A flying-capacitor-clamped five-level inverter based on bridge modular switched-capacitor topology
L He, C Cheng - IEEE Transactions on Industrial Electronics, 2016 - ieeexplore.ieee.org
A novel flying-capacitor-clamped five-level inverter based on bridge modular switched-
capacitor topology is proposed in this paper. The inverter features the switched-capacitor …
capacitor topology is proposed in this paper. The inverter features the switched-capacitor …
Performance analysis and optimization of circulating current control for modular multilevel converter
X Li, Q Song, W Liu, S Xu, Z Zhu… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
The circulating current in phase legs is an inherent phenomenon of modular multilevel
converters (MMCs). The circulating current affects various aspects of MMC performance …
converters (MMCs). The circulating current affects various aspects of MMC performance …
Feedback linearization-based current control strategy for modular multilevel converters
Modular multilevel converters (MMCs) are multi-input multi-output (MIMO) nonlinear
systems. The control systems for MMCs are required to simultaneously achieve multiple …
systems. The control systems for MMCs are required to simultaneously achieve multiple …
A modified modular multilevel converter with reduced capacitor voltage fluctuation
The requirement of a large number of sizeable capacitors in traditional modular multilevel
converter (MMC) submodules is seen as a major barrier hampering its widespread use in …
converter (MMC) submodules is seen as a major barrier hampering its widespread use in …
Voltage-balancing method for modular multilevel converters switched at grid frequency
The modular multilevel converter (MMC) becomes attractive for high-voltage and high-power
applications due to its high modularity, availability, and power quality. The voltage balance …
applications due to its high modularity, availability, and power quality. The voltage balance …
Voltage-balancing method for modular multilevel converters under phase-shifted carrier-based pulsewidth modulation
The modular multilevel converter (MMC) becomes attractive for medium-or high-power
applications because of the advantages of high modularity, availability, and power quality …
applications because of the advantages of high modularity, availability, and power quality …