A multilevel modular DC–DC converter topology [PDF]
Mathematics and Computers in Simulation, 2017 A multilevel modular DC-DC power conversion topology based on cascaded H-Bridge converters in a double П configuration is presented. The topology is intended to interconnect large power DC networks. A two level control hierarchy is used to regulate the DC voltage of each H-bridge module.
Ricardo Vidal +7 more
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Energy Reports, 2020 For multi-applications, a novel universal switched-capacitor (SC) converter is proposed in this paper. The proposed converter consists of a rotation-type SC converter and a full-bridge circuit.
Kei Eguchi +3 more
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An Advanced Three-Level Active Neutral-Point-Clamped Converter With Improved Fault-Tolerant Capabilities [PDF]
, 2017 A resilient fault-tolerant silicon carbide (SiC) three-level power converter topology is introduced based on the traditional active neutral-point-clamped converter.
He, Jiangbiao +2 more
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Cell capacitor sizing in multilevel converters: cases of the modular multilevel converter and alternate arm converter [PDF]
IET Power Electronics, 2015 Multilevel converters, such as the modular multilevel converter (MMC) or the alternate arm converter (AAC), rely on charged capacitors in their cells to generate their AC voltage waveform. Since the cell capacitors are physically large and occupy approximately half the cell volume, their capacitance must be kept minimal while limiting the voltage ...
Merlin, MMC, Green, TC
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Five-level selective harmonic elimination PWM strategies and multicarrier phase-shifted sinusoidal PWM: A comparison [PDF]
, 2005 The multicarrier phase-shifted sinusoidal pulse-width modulation (MPS-SPWM) technique is well-known for its important advantage of offering an increased overall bandwidth as the number of carriers multiplied with their equal frequency directly controls ...
Agelidis, V.G. +3 more
core +1 more source
Analysis and hardware testing of cell capacitor discharge currents during DC faults in half-bridge modular multilevel converters [PDF]
, 2015 This paper focuses on the behaviour of the cell capacitor discharge currents during DC faults in half-bridge modular multilevel converters. Active switches, not designed for fault conditions, are tripped to minimize discharge currents effect on the ...
Aboushady, A.A., Ahmed, K.H., Jovcic, D.
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The age of multilevel converters arrives [PDF]
IEEE Industrial Electronics Magazine, 2008 This work is devoted to review and analyze the most relevant characteristics of multilevel converters, to motivate possible solutions, and to show that we are in a decisive instant in which energy companies have to bet on these converters as a good solution compared with classic two-level converters. This article presents a brief overview of the actual
García Franquelo, Leopoldo +5 more
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Feed-forward Space Vector Modulation for Single-Phase Multilevel Cascade Converters with any DC voltage ratio [PDF]
, 2009 Modulation techniques for multilevel converters can create distorted output voltages and currents if the DC link voltages are unbalanced. This situation can be avoided if the instantaneous DC voltage error is not taken into account in the modulation ...
Carrasco Solís, Juan Manuel +5 more
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Derivation of Voltage Source Multilevel Converter Topologies [PDF]
, 2017 Multilevel converters have gained popularity in both medium voltage and low voltage applications. To find out the connections between various multilevel voltage-source converter topologies and to reveal how to obtain new topologies, this paper has ...
Yuan, Xibo
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AC-Side Impedance-Based Stability Assessment in Grid-Forming Modular Multilevel Converters
IEEE AccessGrid-forming converters can emulate the behavior of a synchronous generator through frequency droop control. The stability of grid-forming modular multilevel converters can be studied via the impedance-based stability criterion. This paper presents an ac-
Mehrdad Nahalparvari +3 more
doaj +1 more source