Results 61 to 70 of about 5,081,374 (170)

Research of the Common-mode Voltage Inhibition for Three-level NPC Inverter

open access: yesKongzhi Yu Xinxi Jishu, 2015
Adopting NPC(Neutral Point Clamped) three-level inverters as a research object, it analyzed three control strategies for common-mode voltage inhibition, such as traditional three -level SVPWM, SVPWM for reducing common-mode voltage and SVPWM for ...
DING Guanyuan, LI Yinling, LI Kai
doaj  

A 3D-Space Vector Modulation Algorithm for Three Phase Four Wire Neutral Point Clamped Inverter Systems as Power Quality Compensator

open access: yesEnergies, 2017
A Unified Power Quality Conditioner (UPQC) is designed using a Neutral Point Clamped (NPC) multilevel inverter to improve the power quality. When designed for high/medium voltage and power applications, the voltage stress across the switches and harmonic
Palanisamy Ramasamy   +1 more
doaj   +1 more source

Design of neutral-point voltage controller of a three-level NPC inverter with small DC-link capacitors

open access: yes, 2013
A neutral-point-clamped three-level inverter with small dc-link capacitors is presented in this paper. The inverter requires zero average neutral-point current for stable neutral–point voltage.
Munk-Nielsen, Stig   +2 more
core   +2 more sources

Análise Comparativa De Inversores Multiníveis Monofásicos Baseados Em Células De Comutação

open access: yesEletrônica de Potência, 2013
Este artigo apresenta a análise comparativa para operação em regime permanente de três inversores multiníveis monofásicos, com grampeamento do ponto neutro (NPC – Neutral Point Clamped), baseados em células de comutação.
João A. F. Neto   +2 more
doaj   +1 more source

Harmonic Analysis of Single-Phase Neutral-Point-Clamped Cascaded Inverter in Advanced Traction Power Supply System Based on the Big Triangular Carrier Equivalence Method

open access: yesEnergies, 2018
An advanced traction power supply system based on a single phase neutral-point-clamped (NPC) cascaded inverter is studied. The big triangular carrier equivalence method in double coordinate system is proposed, which can reduce one coordinate system, thus
Pengcheng Han   +5 more
doaj   +1 more source

Control to Smes Using a Two Level Converter (2lc) and Neutral Point Clamped (Npc).

open access: yes, 2017
This paper presents a methodology for charging/discharging control of a Superconducting Magnetic Energy Storage (SMES) systems, using a two stages DC/AC conversion namely, A DC/DC stage for the SMES control and a DC/AC stage for grid integration.
Patiño Ipus, Daniel Fernando
core   +1 more source

Quantitative Analysis of Balancing Range for Single-Phase 3L-NPC Converters

open access: yesEnergies
Multiple techniques have been suggested to achieve control balance in single-phase three-level neutral-point clamped (3L-NPC) converters. Nevertheless, there is a deficiency of quantitative calculations related to the extent of balancing.
Ziying Wang   +5 more
doaj   +1 more source

Carrier-Based PWM Strategy of Three-Level Neutral-Point-Clamped Inverter With Optimal Extension Mode

open access: yesIEEE Open Journal of Power Electronics
Neutral point voltage ripple is the main technical drawback of the three-level neutral-point-clamped (3L-NPC) inverters. Conventional hybrid PWM strategies, which combine zero sequence voltage injection PWM (ZVI-PWM) with double modulation wave PWM (DMW ...
Guozheng Zhang   +4 more
doaj   +1 more source

PERFORMANCE COMPARISON OF MULTICELL SERIES AND NPC MULTILEVEL CONVERTERS FOR A STATCOM

open access: yesElectrical engineering & Electromechanics, 2019
. In this paper, we present a comparative study of the performances of the multicells series and the Neutral-Point-Clamped (NPC) three-level converters used at synchronous static compensators (STATCOM) for the control of the voltage at a point of the ...
S. Belakehal, A. Djellad, R. Chenni
doaj   +1 more source

Model Predictive Control Strategy Based on Loss Equalization for Three-Level ANPC Inverters

open access: yesActuators
Targeting the issue of high losses of individual switching tubes in Neutral-Point Clamped (NPC) three-level inverters, an Active Neutral-Point Clamped (ANPC) three-level inverter is used, and a model predictive control strategy using the loss ...
Shaoqi Wan   +4 more
doaj   +1 more source

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