Results 41 to 50 of about 1,408 (165)

Comprehensive modeling and formulation of split DC link capacitors balancing problem in Three-Phase Three-Level bidirectional AC/DC converters operating with arbitrary power factor

open access: yesAlexandria Engineering Journal, 2023
Three-phase three-level AC/DC and DC/AC converters have demonstrated several advantages over their classical two-level counterparts such as better efficiency, enhanced total harmonic distortion, lower dv/dt and lesser overall chip area.
Yan Vule, Yarden Siton, Alon Kuperman
doaj   +1 more source

Control of AC/DC Modular Multilevel Converter

open access: yesElektronika ir Elektrotechnika, 2018
In recent years, a special attention is paid to grid connected multilevel converters. These converters have specific use in industry in a high power, medium-voltage and high-voltage applications. This paper presents new control algorithm for single-phase
Vojtech Blahnik   +3 more
doaj   +1 more source

Triple Line-Voltage Cascaded VIENNA Converter Applied as the Medium-Voltage AC Drive

open access: yesEnergies, 2018
A novel rectifier based on a triple line-voltage cascaded VIENNA converter (LVC-VC) was proposed. Compared to the conventional cascaded H-bridge converters, the switch voltage stress is lower, and the numbers of switches and dc capacitors are fewer under
Jia Zou   +3 more
doaj   +1 more source

Three-Phase Trinary Asymmetric Multilevel Inverter With Single DC Source and Open-Loop Control

open access: yesIEEE Open Journal of Industry Applications, 2021
A three-phase trinary-asymmetric cascaded H-bridge multilevel inverter topology with single dc source per phase is presented in this paper. Only one of the H-bridges (called Main bridge) is fed from a dc source and all others (called auxiliary bridges ...
Rajesh Vasu   +2 more
doaj   +1 more source

An integrated interlinking converter with DC-link voltage balancing capability for bipolar hybrid microgrid

open access: yesElectrical Engineering, 2019
Interlinking converter topology on bipolar hybrid microgrid is gaining increasing attention during last years. The heart of bipolar hybrid microgrid structure is the interlinking converter that plays the primary role in this structure. This interlinking converter has decisive tasks in the microgrid control system and controlling the dc-bus is one of ...
Parviz Najafi   +2 more
openaire   +2 more sources

FCS-MPC for four-switch three-phase AC-DC converters with DC-link capacitor voltage balancing

open access: yesJournal of Measurement Science and Instrumentation, 2019
Due to the decrease in the number of switches for the four-switch three-phase alternating current-direct current(FSTP AC-DC) converter, it can easily lead to DC-link capacitor voltage imbalance and the system stability reduction.
MA Wei-jie, ZHANG Bao-ge
doaj  

Common-Mode Resonance Damping and DC Voltage Balancing Strategy for LCCL-Filtered Three-Level Photovoltaic Grid-Tied Inverters

open access: yesIEEE Access, 2020
The leakage current caused by common-mode (CM) voltage is a critical issue in transformerless three-level photovoltaic (PV) inverters, which can increase the output current distortion, bring extra power losses, aggravate the electromagnetic interference,
Rende Zhao   +4 more
doaj   +1 more source

A Study on Neutral-Point Potential in Three-Level NPC Converters

open access: yesEnergies, 2019
This paper proposes an accurate mathematical model of three-level neutral-point-clamped (NPC) converters that can accurately represent the midpoint potential drift of the DC link with parameter perturbation.
Maosong Zhang   +6 more
doaj   +1 more source

Balancing Control of DC-Link Capacitor Voltages for Five-Level Hybrid Diode-Clamped Inverters With Passive Front-Ends

open access: yesIEEE Access
The paper presents a control strategy for balancing DC-link capacitor voltages in a five-level hybrid diode-clamped (5L-HDC) inverter, consisting of two half-bridges and diode-clamped cells.
Min-Seok Kim, Dinh Du To, Dong-Choon Lee
doaj   +1 more source

DC-Link Voltage Balance Control in Three-phase Four-wire Active Power Filters

open access: yesJournal of Power Electronics, 2016
The three-phase four-wire shunt active power filter (APF) is an effective method to solve the harmonic problem in three-phase four-wire power systems. In addition, it has two possible topologies, a four-leg inverter and a three-leg inverter with a split-capacitor.
Yu Wang   +3 more
openaire   +2 more sources

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