Results 11 to 20 of about 439 (182)

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

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   +1 more source

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

Triangle Carrier-Based DPWM for Three-Level NPC Inverters [PDF]

open access: yesIEEE Journal of Emerging and Selected Topics in Power Electronics, 2018
This paper proposes a triangle carrier-based discontinuous pulsewidth modulation (TCB-DPWM) implement method for three-level neutral-point-clamped (3L-NPC) inverters. The function equivalent relationship of the proposed TCB-DPWM and space vector-based DPWM (SVB-DPWM) is mathematically analyzed in this paper.
Kai Li   +5 more
openaire   +2 more sources

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

Effect of defective NPC three level inverter on nonlinear command of induction motor [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2022
Speed Induction Motor (IM) control is an area of research that has been in evidence for some time now. In this paper, a nonlinear controller is presented for the induction motor drives.
Kheira Mendaz   +2 more
doaj   +1 more source

Impedance Modeling and Stability Analysis of the IMAF-PLL-Based NPC Three-Level LCL Grid-Connected Inverter

open access: yesIEEE Access, 2020
The phase-locked loop of grid-connected inverters affects their output impedance characteristics and stability. Based on the NPC, three-level LCL grid-connected inverter, this article first analyzes the frequency characteristics of the improved moving ...
Wei Luo, Dafang Wei, Jianguo Jiang
doaj   +1 more source

Simulation and Implementation of NPC three-level inverter SVPWM algorithm

open access: yesJournal of Physics: Conference Series, 2021
Abstract Taking diode clamp type three-level inverter as the research object, the principle of SVPWM algorithm is introduced, and the relationship between SVPWM algorithm and two-level algorithm is described. On this basis, the simulation principle of two-level SVPWM algorithm is used for reference, and the three-level space vector ...
Tao Zhang, Xiuhe Lu, Yuanlin Shi
openaire   +1 more source

Three-level NPC Inverter SVM Implementation on Delfino DSC

open access: yesIFAC-PapersOnLine, 2019
Abstract The aim of the paper is to present implementation of reduced switch count space vector pulse width modulation for three-level neutral point clamped inverters (3L-NPC). The implementation was done using Delfino TMS320F28379D. This dual core digital signal controller (DSC) is used because of compute-intensive nature of implemented modulation ...
Krzysztof Górecki   +2 more
openaire   +1 more source

Real-Time Switching Number Reduction SVM for a Two-Phase Motor Powered by Three-Level NPC Inverter

open access: yesEnergies, 2023
A three-level neutral point clamped inverter with three phase legs is often used to power three-phase electrical motors. This type of multilevel inverter has its advantages over two-level inverters.
Ryszard Beniak   +2 more
doaj   +1 more source

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