Results 21 to 30 of about 2,128 (219)

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

Grid-Tied Neutral Point Clamped based Centralised Photovoltaic Inverter with Improved DC Link Voltage Balancing and Harmonic Minimisation Control

open access: yesPower Electronics and Drives, 2021
This paper proposes an improved space vector pulse width modulation (SVPWM) based DC link voltage balancing control of a three-phase three-level neutral point clamped (NPC) centralised inverter supplying the generated power from photo voltaic (PV) array ...
Bhowmick Supratik   +3 more
doaj   +1 more source

A Hysteresis Space Vector PWM for PV Tied Z-Source NPC-MLI With DC-Link Neutral Point Balancing

open access: yesIEEE Access, 2021
The Photo-voltaic (PV) tied Z-source Neutral-point clamped multilevel inverter (Z-NPC-MLI) is used in solar grid connected applications due to its single stage conversion and better performance.
Suresh Kumar Annam   +2 more
doaj   +1 more source

Neutral-point Voltage Control of Three-level NPC Inverter for Three-phase APF based on Zero-sequence Voltage Injection [PDF]

open access: yes, 2019
© 2019 IEEE. Active Power Filters (APF) have already adopted the three-level inverter topology in medium-voltage and high-power applications for solving power-quality problems.
Asif Khan   +9 more
core   +1 more source

Artificial neural networks controllers for three-phase neutral point clamped inverters

open access: yesEngineering Science and Technology, an International Journal, 2023
In this study, a new current control method consisting of proportional-resonant (PR) based artificial neural networks (ANN) has been developed for a neutral point clamped (NPC) inverter.
Yunus Emre Yağan, Kadir Vardar
doaj   +1 more source

Design and Control of Multi – Input Multi – Output DC-DC Converter for Neutral Point Clamped Inverters

open access: yesGazi Üniversitesi Fen Bilimleri Dergisi, 2019
In this study, multi-input multi-output DC/DC converter topology is presented for both multisource operation and voltage unbalancing of Neutral Point Clamped (NPC) inverters.
Naki GÜLER, Erdal IRMAK
doaj   +1 more source

The Energy Processing by Power Electronics and its Impact on Power Quality [PDF]

open access: yes, 2012
This paper discusses the electrical architectures adopted in wind turbines and its impact on the harmonic flux at the connected electric network. The integration of wind electric generators with the power grid needs energy processing by power electronics.
J.E. Rocha   +3 more
core   +1 more source

Study of the Modulation Schemes in the Hybrid Three-Phase Multilevel Inverter

open access: yesEletrônica de Potência, 2017
This work proposes and analyzes modulation strategies for a hybrid three- phase multilevel inverter, which employs two different topologies in a cascade connection, a three-phase Neutral Point Clamped (NPC) converter and single- phase half-bridge ...
Marcos Vinicius Bressan   +2 more
doaj   +1 more source

Control method of DC component for NNBI accelerator power supply

open access: yesEnergy Reports, 2023
In the high voltage power supply of the negative ion source neutral beam injection system (NNBI) accelerator, the three-phase three-level neutral point clamping (NPC) inverter, as an inverter module, has a detectable DC component in its output.
Hongfei Yong   +4 more
doaj   +1 more source

Fault-Tolerant Control Strategy for Neutral-Point-Clamped Three-Level Inverter

open access: yesJournal of Control Science and Engineering, 2018
A fault-tolerant control technique is discussed for the Neutral-Point-Clamped (NPC) three-level inverter, which ensures that the NPC inverter operates normally even under device failures. A two-level leg is added to the NPC inverter; when the device open
Yanxia Shen   +3 more
doaj   +1 more source

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