Results 51 to 60 of about 8,894 (204)

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

An Active Power Decoupling Topology for Three-phase Four-leg Inverters with Unbalanced Load

open access: yesJournal of Physics: Conference Series, 2022
Abstract Traditional three-phase four-leg inverters are widely used in microgrid systems because of their ability to carry unbalanced loads, but unbalanced load currents will cause instantaneous power to contain double-frequency fluctuations, which will affect the normal operation of the microgrid system.
Yuanchao Xie, Fusheng Wang, Heng Liu
openaire   +1 more source

Modulation Strategies for Three-phase Four-leg Inverter

open access: yesKongzhi Yu Xinxi Jishu, 2015
It summarized the common modulation strategies for three-phase four-leg inverter, especially the methods of hysteresis current pulse modulation(HCPM), PWM and three-dimensional space vector PWM(3D-SVPWM).
HUANG Penghui   +2 more
doaj  

Sliding Mode Control of Three-Phase Four-Leg Inverters via State Feedback [PDF]

open access: yesJournal of Power Electronics, 2014
To optimize controller design and improve static and dynamic performances of three-phase four-leg inverter systems, a compound control method that combines state feedback and quasi-sliding mode variable structure control is proposed. The linear coordinate change matrix and the state variable feedback equations are derived based on the mathematical ...
Long-Yue Yang   +3 more
openaire   +1 more source

Two-leg three-phase inverter control for STATCOM and SSSC applications [PDF]

open access: yes, 2008
Flexible ac transmission systems (FACTS) devices are attracting an increasing interest both in power system academic research and in electric utilities for their capabilities to improve steady-state performance as well as system stability.
Griffo, A., Lauria, D.
core   +1 more source

Overview of three-phase inverter topologies for distributed generation purposes [PDF]

open access: yes, 2010
The increasing presence of single-phase distributed generators and unbalanced loads in the electric power system may lead to unbalance of the three phase voltages, resulting in increased losses and heating.
De Kooning, Jeroen   +5 more
core   +1 more source

FPGA-based implementation of the back-EMF symmetric-threshold-tracking sensorless commutation method for brushless DC-machines [PDF]

open access: yes, 2013
The operation of brushless DC permanent-magnet machines requires information of the rotor position to steer the semiconductor switches of the power-supply module which is commonly referred to as Brushless Commutation. Different sensorless techniques have
Darba, Araz   +3 more
core   +1 more source

A Generalized Approach for Determining the Current Ripple RMS in Four-Leg Inverters with the Neutral Inductor

open access: yesEnergies, 2023
This manuscript proposes a novel approach for determining phase and neutral-current-ripple RMS in grid-connected four-leg inverters with the neutral inductor.
Riccardo Mandrioli   +3 more
doaj   +1 more source

Mathematical Vector Quantity Modulated Three Phase Four Leg Inverter

open access: yes, 2016
In this paper it has been shown that any unbalanced and distorted three-phase currents can be efficiently generated as output from a four-leg (4L) inverter with mathematical implementation of three dimensional (3D) space vector pulse width modulation (SVPWM) in \( \upalpha{ - }\upbeta{ - }\upgamma \) frame.
Bhaskar Bhattacharya   +1 more
openaire   +1 more source

A simple current control strategy for a four-leg indirect matrix converter [PDF]

open access: yes, 2014
In this paper the experimental validation of a predictive current control strategy for a four-leg indirect matrix converter is presented. The four-leg indirect matrix converter can supply energy to an unbalanced three-phase load whilst providing a path ...
Espinoza, Jose   +6 more
core   +2 more sources

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