Results 31 to 40 of about 21,283 (339)

A wavelet modulation method for a quasi-Z-source inverter

open access: yes工程科学学报, 2017
A wavelet modulation strategy applied to a quasi-Z-source inverter was proposed. The regulating range of the shootthrough duty ratio could be increased by changing the locations of the sampling points set using traditional wavelet-modulation.
LI Zhi-jun   +5 more
doaj   +1 more source

State-Space Model of Quasi-Z-Source Inverter-PV Systems for Transient Dynamics Studies and Network Stability Assessment

open access: yesEnergies, 2021
Photovoltaic (PV) power systems are increasingly being used as renewable power generation sources. Quasi-Z-source inverters (qZSI) are a recent, high-potential technology that can be used to integrate PV power systems into AC networks.
Lluís Monjo   +3 more
doaj   +1 more source

EMI Suppression of High-Frequency Isolated Quasi Z-Source Inverter Based on Multi-Scroll Chaotic PWM Modulation

open access: yesIEEE Access, 2019
The high frequency isolated quasi Z-source inverter is a new type of inverter, which is suitable for photovoltaic generation system because of its high lift to voltage ratio, transient bridge direct access and electrical isolation.With the increase of ...
Yan Chen   +3 more
doaj   +1 more source

An Impedance Network-Based Three Level Quasi Neutral Point Clamped Inverter with High Voltage Gain

open access: yesEnergies, 2020
Due to the impediments of voltage source inverter and current source inverter, Z-Source Inverter (ZSI) has become notorious for better power quality in low and medium power applications. Several modifications are proposed for impedance source in the form
Muhammad Aqeel Anwar   +5 more
doaj   +1 more source

Comparative Analysis of Various Z-source Based Five Level Cascaded H-bridge Multilevel Inverter [PDF]

open access: yes, 2018
Z-source based multilevel inverters are the recent topologies as they have boosting ability and near sinusoidal output waveforms. This paper proposes different inverter topologies such as Z-source multilevel inverter and quasi Z-source multilevel ...
R. Balamurugan, C., Vijayalakshmi, K.
core   +3 more sources

Low Computational Burden Predictive Direct Power Control of Quasi Z-Source Inverter for Grid-Tied PV Applications

open access: yesSustainability, 2023
This paper proposes a simplified predictive direct power control for the grid-tied quasi Z-source inverter. The proposed control implements a model predictive control structure to achieve the maximum obtainable power from the collected PV source.
Abderahmane Abid   +5 more
semanticscholar   +1 more source

A Fault-Tolerant T-Type Multilevel Inverter Topology With Increased Overload Capability and Soft-Switching Characteristics [PDF]

open access: yes, 2017
he performance of a novel three-phase four-leg fault-tolerant T-type inverter topology is introduced in this paper. This inverter topology provides a fault-tolerant solution to any open-circuit and certain short-circuit switching faults in the power ...
Demerdash, Nabeel   +4 more
core   +2 more sources

A Switched Quasi-Z-Source Inverter with Continuous Input Currents

open access: yesEnergies, 2020
Impedance source converters as single-stage power conversion alternatives can boost and regulate the output voltages of renewable energy sources. Nevertheless, they, also known as Z-source inverters (ZSIs), still suffer from limited voltage gains and ...
Jing Yuan   +2 more
doaj   +1 more source

A new topology of the switched-inductor/capacitor quasi Z-source inverter with ability of uplifted-boost [PDF]

open access: yesInternational Journal of Industrial Electronics, Control and Optimization, 2020
In this paper, a new topology of switched-inductor/capacitor quasi impedance source inverter is suggested, which in comparison with the other topologies possesses higher boost voltage inversion at high modulation index and low shoot through duty cycle ...
Alireza Karbalaei   +2 more
doaj   +1 more source

Analysis, design and investigation on a new single-phase switched quasi Z-source inverter for photovoltaic application [PDF]

open access: yes, 2017
: This paper addresses the approach to improve the efficiency of the quasi Z-source inverter. In order to increase the efficiency the reduction of conduction losses is one way to approach.
Bharatiraja, C.   +7 more
core   +4 more sources

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