Analysis and design of a modular multilevel converter with trapezoidal modulation for medium and high voltage DC-DC transformers [PDF]
, 2015 Conventional dual active bridge topologies provide galvanic isolation and soft-switching over a reasonable operating range without dedicated resonant circuits.
Adam, Grain P. +4 more
core +2 more sources
Modular Multilevel Converters for Large-Scale Grid-Connected Photovoltaic Systems: A Review
Energies, 2021 The use of photovoltaic (PV) systems as the energy source of electrical distributed generators (DG) is gaining popularity, due to the progress of power electronics devices and technologies.
S. Alotaibi, A. Darwish
semanticscholar +1 more source
Modular Multilevel Converter for a Linear Generator for Wave Energy Converter
Energies, 2022 In this paper we propose a modular multilevel converter for a linear generator for a wave energy converter. The coils of this generator are individually controlled to improve energy harvesting performance. This topology involves two stages.
Henry M. Zapata, Marcelo A. Pérez
doaj +1 more source
Modular multilevel converter with modified half-bridge submodule and arm filter for dc transmission systems with DC fault blocking capability [PDF]
, 2018 Although a modular multilevel converter (MMC) is universally accepted as a suitable converter topology for the high voltage dc transmission systems, its dc fault ride performance requires substantial improvement in order to be used in critical ...
Abdelsalam, Ibrahim A. +3 more
core +2 more sources
Investigating the Converter-Driven Stability of an Offshore HVDC System
Energies, 2021 Offshore wind farms are increasingly built in the North Sea and the number of HVDC systems transmitting the wind power to shore increases as well. To connect offshore wind farms to adjacent AC transmission systems, onshore and offshore modular multilevel
Matthias Quester +5 more
doaj +1 more source
Optimal Design and Control of MMC STATCOM for Improving Power Quality Indicators
Applied Sciences, 2020 In recent years, modular multilevel converters (MMC) are becoming popular in the distribution and transmission of electrical systems. The multilevel converter suffers from circulating current within the converter that increases the conduction loss of ...
Ahmed A. Zaki Diab +4 more
doaj +1 more source
Bilinear Quadratic Feedback Control of Modular Multilevel Converters
Energies, 2023 The present paper introduces the formulation and development of a bilinear quadratic control algorithm for Modular Multilevel Converter (MMCs), with a specific emphasis on achieving internal energy stabilization and balance within the converter.
Guacira Costa de Oliveira +4 more
doaj +1 more source
Mixed cells modular multilevel converter [PDF]
2014 IEEE 23rd International Symposium on Industrial Electronics (ISIE), 2014 This paper uses a scaled down version of the mixed cells modular multilevel converter (MMC) to discuss its modulation and capacitor voltage balancing method, and investigates its AC and DC fault ride-through capability. It has been found that the mixed MMC is resilient to both AC and DC network faults, which are necessary for next generations of highly
Adam, G. P., Ahmed, K.H., Williams, B.W.
openaire +2 more sources
Generalized Voltage-based State-Space Modelling of Modular Multilevel Converters with Constant Equilibrium in Steady-State [PDF]
, 2017 This paper demonstrates that the sum and difference of the upper and lower arm voltages are suitable variables for deriving a generalized state-space model of an MMC which settles at a constant equilibrium in steady-state operation, while including the ...
Bergna-Diaz, Gilbert +4 more
core +3 more sources
Modular multilevel converter losses model for HVdc applications [PDF]
, 2017 Multi-terminal high voltage dc (HVdc) grids can eventually became a feasible solution to transport energy to remote and/ or distant areas and its exploitation depend, among other things, on the performance of the converter terminals.
Antonio Ferreira, Abel +1 more
core +2 more sources