Results 41 to 50 of about 9,713 (302)

A novel space-vector algorithm for multilevel converters based on geometrical considerations using a new sequence control technique [PDF]

open access: yes, 2004
his paper presents a fast and simple space vector modulation algorithm for voltage source multilevel converters for calculating the switching times and the space vectors using simple geometrical considerations.
Carrasco Solís, Juan Manuel   +4 more
core   +1 more source

Power Quality Enhancement in Electricity Grids with Wind Energy Using Multicell Converters and Energy Storage [PDF]

open access: yes, 2019
In recent years, the wind power industry is experiencing a rapid growth and more wind farms with larger size wind turbines are being connected to the power system.
Allali, Ahmed   +5 more
core   +2 more sources

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

Model Predictive Control Method Based on Deterministic Reference Voltage for Single-Phase Three-Level NPC Converters

open access: yesApplied Sciences, 2020
When single-phase three-level neutral-point-clamped (NPC) converters operate, there are two main control objectives that need to be met for correct operation. First, the ac source current must be controlled to be sinusoidal.
Eun-Su Jun   +2 more
doaj   +1 more source

Research on three-phase four-wire NPC converter for Tokamak low-frequency resonance suppressor

open access: yesEnergy Reports, 2021
During the operation of Tokamak power system, a large number of low frequency harmonic currents with complex spectrum will be generated. Low-frequency resonance suppressor is an effective solution to suppress this low-frequency harmonic currents. The low-
Xianshun Shen   +9 more
doaj   +1 more source

Techno-economic evaluation of five-level nested neutral point clamped converter topology for transformer-less connection of high-power wind energy conversion systems

open access: yesJournal of Energy in Southern Africa, 2019
Developers and operators are interested in improving the reliability and reducing the associated costs of wind power plants (WPPs) because of the continuous increase in the power capacity of wind energy conversion systems (WECSs) and the increasing ...
Akinola A. Ajayi-Obe   +2 more
doaj   +1 more source

Generalised Predictive Control of a 12-bus Network Using Neutral-Point Clamped Voltage Source Converter UPFC [PDF]

open access: yes, 2014
The paper presents the application of a UPFC to a case study of a 12-bus high power network. The UPFC shunt converter employs 8 3-level Neutral Point Clamped (NPC) voltage source converters (VSC) and 12 single-phase three-winding phase shifting ...
Chong, BVP, Kokkinakis, M, Zhang, L
core   +1 more source

Application of Simplified Neutral Point Clamped Multilevel Converter in a Small Wind Turbine

open access: yesElectrical, Control and Communication Engineering, 2014
In low power distributed generation systems low cost together with the energy quality requirements are a key element. It is known that quality of voltage waveforms generated from multilevel converters is better in comparison with those from two-level ...
Mlodzikowski Pawel   +2 more
doaj   +1 more source

Novel Converter for Voltage Balance in Series-Connected Capacitors and Batteries

open access: yesPower Electronics and Drives, 2018
This paper presents a novel concept of a circuit for voltage balance of three series-connected capacitors or batteries, as well as the research results.
Hachlowski Jakub, Stala Robert
doaj   +1 more source

A Hybrid-Bridge-Based Dual Active Bridge Converter With Reduced Device Count

open access: yesIEEE Open Journal of Power Electronics, 2022
In this paper, a hybrid-bridge-based dual-active-bridge (DAB) converter with a three-level (TL) half-bridge and a two-level full-bridge is proposed, which can be utilized to interface the medium voltage and low voltage DC.
Jiahui Wu   +4 more
doaj   +1 more source

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