Results 1 to 10 of about 487 (160)

Assessment of Model Predictive Voltage Control for Autonomous Four-Leg Inverter [PDF]

open access: yesIEEE Access, 2020
The Finite control set model predictive control (FCS-MPC) is recently introduced to control inverters without the modulation stage. The absence of the modulation stage gives an unpredictable performance of the control system.
Raef Aboelsaud   +5 more
doaj   +2 more sources

Control Strategy for Four-Leg Nine-Switch Inverter Under Unbalanced Loads [PDF]

open access: yesIEEE Access, 2020
On account of that nine-switch inverter (NSI) cannot supply symmetrical voltages to unbalanced loads, based on the NSI, N-phase leg is added to the neutral points of the loads, which forms a four-leg nine-switch inverter (FLNSI).
Rutian Wang   +4 more
doaj   +2 more sources

A new control scheme for three-phase four-leg inverter

open access: yesDianzi Jishu Yingyong, 2018
In the unbalanced or non-linear load conditions, the ordinary three-phase three-leg inverter can not produce three-phase symmetrical voltage, based on the Simulink simulation platform, this paper presents a new closed-loop control design scheme for three-
Sun Lingfang, Li Zhiyuan, Ji Huichao
doaj   +2 more sources

A decentralized power injection-based approach for voltage imbalance mitigation in three-phase distribution networks [PDF]

open access: yesScientific Reports
This voltage imbalance in four-wire, three-phase distribution networks gives rise to negative-sequence and zero-sequence voltage components which increases the total apparent power received from the network. This also increases the energy losses from the
Saatong Kenfack Tsobze   +8 more
doaj   +2 more sources

A fault-tolerance topology of three-level four-leg NPC inverter

open access: yesGong-kuang zidonghua, 2016
In view of problem that it is difficult to accurately locate device failure of inverter, a fault tolerance topology of three-level four-leg NPC inverter was proposed.
QIU Shiguang, LI Siguang
doaj   +2 more sources

Highly-Reliable Switched-Boost Four-Leg Inverter With Leakage Current Suppression

open access: yesIEEE Access
In this paper, a new switched-boost four-leg inverter is proposed to suppress the leakage current and provide high reliability. The proposed inverter provides full shoot-through immunity by replacing the active switch in the impedance-source network to ...
Duc-Tri do   +3 more
doaj   +2 more sources

Sliding mode controller for four leg shunt active power filter to eliminating zero sequence current, compensating harmonics and reactive power with fixed switching frequency [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2015
In this paper, the four leg inverter controlled by the three dimensional space vector modulation (3D SVM) is used as the shunt active power filter (SAPF) for compensating the three phase four wire electrical network, by using the four leg ...
Chebabhi Ali   +3 more
doaj   +1 more source

Performance Comparisons of Three-Phase/Four-Wire Model Predictive Control-Based DC/AC Inverters Capable of Asymmetric Operation for Wave Energy Converters

open access: yesEnergies, 2022
A study on the capacity increase of a power converter according to the increase in the single capacity of wave energy converters and four-leg topology that can supply stable power even under unbalanced load conditions during independent operation is ...
Chan Roh
doaj   +1 more source

Impedance Modeling and Stability Analysis of Three-Phase Four-Wire Inverter with Grid-Connected Operation

open access: yesEnergies, 2022
With the continuous penetration and development of renewable energy power generation, distributed grids and microgrids are becoming increasingly important in power systems.
Guoli Feng   +4 more
doaj   +1 more source

A Comparative Review of Three Different Power Inverters for DC–AC Applications

open access: yesEnergies, 2023
This paper presents a comparative review of three different widely used power inverters, namely the conventional six-switch inverter; the reduced switch count four-switch inverter; and the eight-switch inverter.
Ali Abdel-Aziz   +2 more
doaj   +1 more source

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