Results 1 to 10 of about 1,388 (148)

DC-Link Voltage Balancing Modulation for Cascaded H-Bridge Converters [PDF]

open access: yesIEEE Access, 2021
Cascaded H-Bridge (CHB) converters have been widely employed in various applications, providing the advantages of modularity and multilevel voltage output. However, technically the CHB converters require isolated DC-link buses, which need to be regulated
Youngjong Ko   +2 more
doaj   +2 more sources

DC-link voltage balancing in cascaded H-Bridge converters

open access: yesArchives of Electrical Engineering, 2014
In this paper a DC-link voltage balancing strategy for multilevel Cascaded H-Bridge (CHB) converter is proposed. Presented solution bases on optimal choice of active vector durations in Space-Vector Pulse Width Modulation (SV-PWM).
Lewicki Arkadiusz
doaj   +2 more sources

Baseline for Split DC Link Design in Three-Phase Three-Level Converters Operating with Unity Power Factor Based on Low-Frequency Partial Voltage Oscillations

open access: yesMachines, 2022
The study sets a baseline for split DC link capacitance values and voltage set points in three-phase three-level AC/DC (or DC/AC) converters operating with unity power factor.
Yarden Siton   +3 more
doaj   +1 more source

An Efficient Capacitor Voltage Balancing Scheme for Modular Multilevel Converter Based Wind Energy Conversion System

open access: yesAdvances in Electrical and Computer Engineering, 2021
Modular multilevel converters (MMCs) can be a reliable solution since they have modular structure and high quality output waveform for permanent magnet synchronous generator (PMSG) based wind energy conversion system (WECS). Capacitor voltage balancing
VURAL, A. M., KURTOGLU, M., EROGLU, F.
doaj   +1 more source

Minimization of DC-Link Capacitance and Improved Operational Performance of a 5-Level Hybrid Multilevel DC-Link Inverter

open access: yesIEEE Open Journal of Power Electronics, 2022
This study analyzes a single-phase hybrid multilevel dc-link (MLDCL) inverter, in which a dc-link with two capacitors is integrated into a single dc source.
Almachius Kahwa   +2 more
doaj   +1 more source

A New Step-Up Switched-Capacitor Voltage Balancing Converter for NPC Multilevel Inverter-Based Solar PV System

open access: yesIEEE Access, 2020
This paper proposed a grid connected solar Photovoltaic (PV) Systems with a new voltage balancing converter suitable for Neutral-Point-Clamped (NPC) Multilevel Inverter (MLI).
Amir Taghvaie   +3 more
doaj   +1 more source

A Wind Energy Prediction Scheme Combining Cauchy Variation and Reverse Learning Strategy

open access: yesAdvances in Electrical and Computer Engineering, 2021
Modular multilevel converters (MMCs) can be a reliable solution since they have modular structure and high quality output waveform for permanent magnet synchronous generator (PMSG) based wind energy conversion system (WECS). Capacitor voltage balancing
WU, X., SHEN, X., ZHANG, J., ZHANG, Y.
doaj   +1 more source

Analytical Modeling of Neutral Point Current in T-type Three-level PWM Converter

open access: yesEnergies, 2020
Since a T-type three-level PWM converter has several intrinsic advantages, it has been researched for various applications such as grid-connected converter systems.
Kui-Jun Lee
doaj   +1 more source

Active voltage balancing of DC-link electrolytic capacitors

open access: yesIET Power Electronics, 2008
DC voltage links of three-phase power converters are frequently equipped with a series connection of two electrolytic capacitors because of high voltage level. For such a configuration, usually resistors have to be arranged in parallel to each capacitor in order to balance the partial voltages. These balancing resistors, however, have to be dimensioned
H. Ertl, T. Wiesinger, J.W. Kolar
openaire   +1 more source

NPC Seven-Level Single-Phase Inverter with DC-Link Voltage Balancing, Input Voltage Boosting, and AC Power Decoupling

open access: yesEnergies, 2022
This paper presents a novel concept of the DC-AC system with the input voltage boost ability, seven-level output voltage modulation, and the input AC current reduction at the double frequency of the output voltage.
Robert Stala   +2 more
doaj   +1 more source

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