Results 21 to 30 of about 178,567 (282)

A study on the parameter design method based on photovoltaic inverter for flying capacitor Boost circuit

open access: yes机车电传动, 2023
This article conducted a research study on the optimal parameter calculation of the boost circuit based on the flying-capacitor for the step-up conversion in series-connected photovoltaic (PV) inverters with a voltage rating of 1 500 V.
GAN Weiwei   +4 more
doaj  

Wide Load Range Capacitor Clamped ZVZCS Half Bridge Three-Level DC-DC Converter with Two Unsymmetrical Bi-directional Switches

open access: yesEnergies, 2019
This paper presents a zero-voltage and zero-current switching (ZVZCS) capacitor-clamped half bridge (HB) three-level dc-dc converter (TLDC), which is well fit for high input voltage dc-dc industrial applications. The maximum voltage stress of the primary
Yong Shi
doaj   +1 more source

Direct control strategy for a four-level three-phase flying-capacitor inverter [PDF]

open access: yes, 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
Llor, Ana-Maria   +2 more
core   +1 more source

Research on voltage regulation ability of four‐level nested clamp converter based on virtual space vector modulation

open access: yesIET Power Electronics, 2023
The four‐level nested neutral point clamped (4L‐NNPC) converter is a new multi‐level converter with a simple topology, which is suitable for the medium‐voltage application. But it has voltage balancing problems under the low output frequency condition. A
Liangdeng Hu, Fei Xiao, Ziyue Xin
doaj   +1 more source

A VSC transmission system using flying capacitor multilevel converters and selective harmonic elimination pWM control [PDF]

open access: yes, 2005
A transmission system based on voltage-source three-level flying capacitor (FC) multilevel converters with selective harmonic elimination pulse-width modulation (SHE-PWM) control is presented in this paper.
Lie Xu   +3 more
core   +1 more source

Modulation Technique Applied for THD Reduction in 3-level Flying Capacitor Multilevel Inverter

open access: yesEletrônica de Potência, 2014
This paper introduces a modulation technique for a three-level flying capacitor multilevel inverter applied in THD reduction. The proposed modulation improves power quality, reducing the total harmonic distortion and combining the advantages of two ...
Davi R. Joca   +4 more
doaj   +1 more source

VSC transmission system using flying capacitor multilevel converters and hybrid PWM control [PDF]

open access: yes, 2007
A high-voltage direct current (HVDC) transmission system based on three-level flying capacitor (FC) multilevel converters with hybrid pulse-width modulation (PWM) is presented in this paper.
Agelidis, V.G., Xu, L.
core   +1 more source

High-voltage DC Converter System for Remotely Operated Vehicle and Its Control Strategy

open access: yesKongzhi Yu Xinxi Jishu, 2023
Working-class underwater vehicle require power supply devices that are high in power density, efficiency and redundancy. To meet these needs, this study designed a high-voltage DC converter system that operates with multiple converters running in ...
CHEN Zhipeng
doaj   +3 more sources

The development of a step-down switched-capacitor inverter without flying capacitors and full-bridge circuits

open access: yesEnergy Reports, 2020
Recently, an inductor-less inverter attracts many researchers’ attention, because the inductor-less design can provide not only small size but also small electromagnetic interference (EMI).
Kei Eguchi   +3 more
doaj   +1 more source

Universal balancing method of flying capacitor converters

open access: yes, 2021
Student Grant System SGS-2021-021This paper describes novel method of balancing of multi-level flying capacitor converters. The proposed balancing block is placed behind PWM modulator instead of balancing table and it is independent on type of ...
Tomas Kosan   +5 more
core   +1 more source

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