Results 11 to 20 of about 3,446 (198)

Asymmetric Neutral Point Diode Clamped Topology with Reduced Component Count for Switched Reluctance Machine Drive

open access: yesEnergies, 2022
The Reduced Asymmetric Neutral Point Clamped converter topology for unipolar driven, multiphase switched reluctance machines is proposed in this paper. This topology shares similarities with the conventional NPC and Asymmetric-NPC topologies, however it ...
Pieter Antonie Scholtz   +1 more
doaj   +1 more source

An Advanced Modulation Technique Featuring Neutral Point Voltage Ripple Suppression of Three-Level Converters in High-Speed Drives

open access: yesIEEE Access, 2021
This paper introduces an advanced space vector modulation technique for three-level neutral-point-clamped (3L-NPC) converters. The studied 3L-NPC converters within aircraft electric starter generator (ESG) systems normally operate at high modulation ...
Chen Li   +5 more
doaj   +1 more source

A Bidirectional Isolated Integrated AC–DC Converter Based on an Interleaved 3-Level T-Type Power Converters

open access: yesIEEE Access, 2021
This paper presents an integrated single-phase bidirectional ac–dc converter based on a dual-active-bridge (DAB) topology. The primary side is based on a multi-state switching cell (MSSC) with a T-type (TNPC) cell, which is composed of two three ...
Welton da S. Lima   +6 more
doaj   +1 more source

Hybrid Duty Ratio Phase-Shift Modulation for a Si + SiC Neutral-Point-Clamped Dual-Active-Bridge Converter

open access: yesIEEE Access, 2023
The neutral-point-clamped (NPC) dual-active-bridge (DAB) converter with hybrid semiconductors (Si and SiC devices) is a promising topology for high-power energy storage systems.
Jiaxin Dong   +5 more
doaj   +1 more source

A New Bidirectional Three-phase Neutral Point Clamped (NPC) Grid-Connected Converter: Analysis and Simulation

open access: yesAnais do Simpósio Brasileiro de Sistemas Elétricos 2020, 2020
This paper deals with the theoretical development, analysis, and simulation of the new topology of three-phase NPC (Neural Point Clamped) converter. The proposed 6-kW three-phase converter is connected to a three-phase electrical network and due to its bidirectional characteristics can either send energy to the grid or receive it from the grid.
Christel E. G. Ogoulola   +6 more
openaire   +2 more sources

Design and comparison of 11 kV multilevel voltage source converters for local grid based renewable energy systems [PDF]

open access: yes, 2011
Because the availability of renewable energy is highly variable and the power demand by the consumers could have a very different characteristic, it is very desirable to connect a renewable generation system to the grid.
Dorrell, D, Guo, Y, Islam, MR, Zhu, JG
core   +1 more source

Model predictive control of NPC three-level grid-tied converter based on reconstructed current [PDF]

open access: yesArchives of Electrical Engineering, 2022
The neutral point clamped (NPC) three-level grid-tied converter is the key equipment connecting renewable energy and power grids. The current sensor fault caused by harsh environment may lead to the split of renewable energy.
Yanyan Li   +3 more
doaj   +1 more source

A Highly Efficient Single-Phase Three-Level Neutral Point Clamped (NPC) Converter Based on Predictive Control with Reduced Number of Commutations [PDF]

open access: yesEnergies, 2018
This paper proposes a highly efficient single-phase three-level neutral point clamped (NPC) converter operated by a model predictive control (MPC) method with reduced commutations of switches. The proposed method only allows switching states with none or a single commutation at the next step as candidates for future switching states for the MPC method.
Jun, Eun-Su, Kwak, Sangshin
openaire   +2 more sources

Efficiency Improvement of Fault-Tolerant Three-Level Power Converters [PDF]

open access: yes, 2018
Fault-tolerant power converters play a critical role in the transportation electrification. However, fault-tolerant operation, high efficiency, and low cost usually result in design criteria that have conflicting constraints and goals.
He, Jiangbiao   +3 more
core   +2 more sources

An On-line Diagnostic Method for Open-circuit Switch Faults in NPC Multilevel Converters [PDF]

open access: yes, 2016
On-line condition monitoring is of paramount importance for multilevel converters used in safety-critical applications. A novel on-line diagnostic method for detecting open-circuit switch faults in neutral-point-clamped (NPC) multilevel converters is ...
Demerdash, Nabeel, He, Jiangbiao
core   +2 more sources

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