Results 31 to 40 of about 21,893 (304)
Zhongguo dianli, 2019 The capacitor voltage balance of modular multilevel converter is the key to its stable operation, aiming at problem of large calculation amount and high switching frequency existing in traditional capacitor voltage balancing strategy. This paper proposes
Fengyang GAO +3 more
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A novel control strategy of resonant converter with modular rectifier based on SiC switching device
Energy Reports, 2022 The resonant converter with modular rectifier (RMR) is a promising topology for DC grid applications. This paper studies the control strategy of RMR based SiC switching device including the output voltage and submodule (SM) capacitor voltage balancing ...
Qian Chen +4 more
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Flying-capacitor multilevel converter voltage balance dynamics for pure resistive load [PDF]
, 2009 Multilevel converters need voltage balancing to be able to generate an output voltage with high quality. Flying capacitor converter topology has a natural voltage balancing property.
Melkebeek, Jan +2 more
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Direct control strategy for a four-level three-phase flying-capacitor inverter [PDF]
, 2010 A direct predictive control strategy is proposed for a three-phase four-level flying-capacitor (FC) inverter in this paper. The balancing of the FC voltages, a challenge in applications with small capacitors and low switching frequencies, is done without
Defaÿ, François +2 more
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Modeling and enhanced control of hybrid full bridge–half bridge MMCs for HVDC grid studies [PDF]
, 2020 Modular multilevel converters (MMCs) are expected to play an important role in future high voltage direct current (HVDC) grids. Moreover, advanced MMC topologies may include various submodule (SM) types. In this sense, the modeling of MMCs is paramount
Forner, Jaume, Vidal-Albalate, Ricardo
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CES Transactions on Electrical Machines and Systems, 2022 Capacitor voltage imbalance is a significant problem for three-level inverters. Due to the mid-point modulation of these inverter topologies, the neutral point potential moves up or down depending on the neutral point current direction creating ...
Dereje Woldegiorgis, H. Alan Mantooth
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Design and implementation of 30kW 200/900V LCL modular multilevel based DC/DC converter for high power applications [PDF]
, 2016 This paper presents the design, development and testing of a 30kW, 200V/900V modular multilevel converter (MMC) based DC/DC converter prototype. An internal LCL circuit is used to provide voltage stepping and fault tolerance property.
Aboushady, A. +3 more
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Control of a Modular Multi-level Converter STATCOM for Low Voltage Ride-Through Condition [PDF]
, 2016 This paper presents a simulation study on the implementation of the Single Star Flying Capacitor Converter Modular Multi-level Cascaded Converter (MMCC-SSFCC) as a STATCOM operating under voltage sag condition.
Oghorada, OJK, Zhang, L
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Capacitor Voltage Balancing Control Scheme for 2/3-Level DAB Converters
IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society, 2021 Two-three (2/3)-level dual-active-bridge (DAB) DC-DC converters have high potential to be applied in the high-voltage (HV) applications due to their higher voltage blocking capability compared to the two-level DAB converters. However, capacitor voltage balancing will be a crucial issue for the neutral-point-clamped (NPC) bridge in the HV side. In order
Chaochao Song +3 more
openaire +2 more sources
Hierarchical voltage balancing method for MMC based on DCSM
IET Power Electronics, 2022 This paper presents a hierarchical voltage balance control method for a hybrid modular multi‐level converter based on half‐bridge submodule and dual‐capacitor submodule. This voltage balancing method reduces the control complexity of the existing voltage
Dongye Li +5 more
doaj +1 more source