Results 11 to 20 of about 2,128 (219)

Open-circuit fault diagnosis method for switching tube of mine NPC three-level inverter

open access: yesGong-kuang zidonghua, 2022
The inverter of the motor drive system in the mine hoist and belt conveyor mostly adopts neutral point clamped (NPC) three-level inverter. This inverter has a large number of switching tubes and high running frequency.
LIANG Hong
doaj   +2 more sources

Shoot-Through Control-Based Space Vector Modulation Approach for a Modified Z-Source NPC Power Inverter [PDF]

open access: yesAdvances in Electrical and Electronic Engineering, 2019
Z-source Neutral Point Clamped (NPC) inverter is a converter topology that combines the benefits of both the impedance network by storing temporary energy released to the load for voltage boosting and NPC inverter by guaranteeing lower Total Harmonic ...
Samir Noui   +5 more
doaj   +2 more sources

A New N-Level Inverter Based on Z-NPC

open access: yesIranian Journal of Electrical and Electronic Engineering, 2017
First of all, in this paper, the topology and operation of the three-phase three-level Z-source inverter based on neutral-point-clamped (Z-NPC) are studied.
E. Babaei, T. Ahmadzadeh
doaj   +1 more source

A fault-tolerance topology of three-level four-leg NPC inverter

open access: yesGong-kuang zidonghua, 2016
In view of problem that it is difficult to accurately locate device failure of inverter, a fault tolerance topology of three-level four-leg NPC inverter was proposed.
QIU Shiguang, LI Siguang
doaj   +2 more sources

A three level NPC inverter fault detection and identification using voltage vector residual evaluation based on current path tracking method

open access: yese-Prime: Advances in Electrical Engineering, Electronics and Energy
This research describes open circuit detection and fault location for active 3-level NPC (neutral point clamped) inverter switches during normal and connected to the neutral point.
Selvakumar P, Muthukumaran G
doaj   +2 more sources

Techno-Economic Assessment of a Hydrogen-Assisted Hybrid Renewable Microgrid with Fuel Cells for Off-Grid Electrification. [PDF]

open access: yesGlob Chall
This study presents a hydrogen‐assisted hybrid renewable microgrid optimized using HOMER Pro for off‐grid electrification in coastal Bangladesh. Integrating solar PV, wind, BESS, electrolyzer, hydrogen storage, and fuel cells, the system achieves a low cost of energy ($0.139/kWh), high reliability, and near‐zero emissions, offering a sustainable and ...
Hasan T   +5 more
europepmc   +2 more sources

Improved virtual space vector modulation for neutral point voltage oscillation and common-mode voltage reduction in neutral point clamped three-level inverter [PDF]

open access: yesArchives of Electrical Engineering, 2021
The neutral point clamped (NPC) three-level inverter is widely used in highvoltage and high-power applications. However, neutral point voltage oscillation (NPVO) and common-mode voltage (CMV) problems exist in the NPC three-level inverter. In this paper,
Junlong Fang   +4 more
doaj   +1 more source

Open‐circuit fault diagnosis method for three‐level neutral point clamped inverter based on instantaneous frequency of phase current

open access: yesEnergy Conversion and Economics, 2020
Because the three‐level neutral point clamped (NPC) inverter has the advantages of a large output capacity and high output voltage, it is widely used in wind energy and solar energy power generation.
Shuiqing Xu, Juxing Wang, Mingyao Ma
doaj   +1 more source

A Fault-Tolerant Control Strategy for Three-Level Grid-Connected NPC Inverters after Single-Arm Failure with Optimized SVPWM

open access: yesEnergies, 2023
Three-level NPC inverters have been widely used in grid-connected systems due to their superior performance compared with two-level inverters, but more switches lead to high fault probability.
Jingtao Huang   +3 more
doaj   +1 more source

Power Loss Model and Efficiency Analysis of Three-Phase Inverter Based on SiC MOSFETs for PV Applications

open access: yesIEEE Access, 2019
This paper presents the power loss model analysis and efficiency of three-level neutral-point-clamped (3L-NPC) inverter that is widely employed in solar photovoltaic energy conversion system.
Mohammed Hassan Ahmed   +3 more
doaj   +1 more source

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