Results 31 to 40 of about 21,721 (309)
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
core +1 more source
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
doaj +1 more source
Grid Integration of Offshore Wind Farms Using Modular Marx Multilevel Converters [PDF]
, 2012 This paper proposes the use of a Modular Marx Multilevel Converter, as a solution for energy integration between an offshore Wind Farm and the power grid network.
Encarnação, Luís +3 more
core +2 more sources
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
doaj +1 more source
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
core +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
Compensated Current Injection circuit, theory and applications [PDF]
, 2002 This paper presents a detailed description, analysis and example of practical application of a wide frequency band voltage-to-current converter. The converter is characterized by a combination of positive and negative feedback loops.
Giorgio Fontana +3 more
core +2 more sources
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
An Energy-Efficient, Dynamic Voltage Scaling Neural Stimulator for a Proprioceptive Prosthesis [PDF]
, 2012 Accepted ...
Constandinou, TG, Williams, I
core +1 more source
The role of histone modifications in transcription regulation upon DNA damage
FEBS Letters, EarlyView.This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley +1 more source