Results 21 to 30 of about 492 (259)

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

Switched-Inductor Quasi-Z-Source Inverter

open access: yesIEEE Transactions on Power Electronics, 2011
This paper deals with a new family of high boost voltage inverters called switched-inductor quasi-Z-source inverters (SL-qZSIs). The proposed SL-qZSI is based on the well-known qZSI topology and adds only one inductor and three diodes. In comparison to the SL-ZSI, for the same input and output voltages, the proposed SL-qZSI provides continuous input ...
Nguyen, Minh-Khai   +2 more
openaire   +3 more sources

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

Two Inputs Five-Level Quasi-Z-Source Inverter [PDF]

open access: yesJournal of Operation and Automation in Power Engineering, 2016
This paper combines quasi-Z-source into a typical five-level inverter, which includes two dc voltage sources, two quasi-Z-sources and five switching devices.
A. Baghbany Oskouei   +2 more
doaj  

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

Variable switching frequency PWM for quasi‐Z‐Source inverter based on DC current ripple prediction

open access: yesIET Power Electronics, 2023
Herein, a variable switching frequency pulse width (VSFPWM) modulation strategy for quasi‐Z‐source inverter (qZSI) based on a recently proposed modulation method, named as ZSVM8, is proposed.
Xin Liu, Zhenbin Huang, Litong Wang
doaj   +1 more source

Dual Input Single Phase Quasi Z Source Inverter for Integrated Photovoltaic Systems

open access: yesAdvances in Materials Science and Engineering, 2022
Globally, climate change has increased various environmental concerns, and there is a very high and still ever greater penetration of renewable energy power into energy grids.
T. Rampradesh   +2 more
doaj   +1 more source

Quasi Z‐source inverter with switched‐capacitor‐inductor for enhancing boost factor

open access: yesIET Power Electronics, 2021
Two structures are proposed based on the quasi Z‐source inverter (qZSI), which can significantly raise the output voltage in applications, including photovoltaic and fuel cells, in which the input voltage is low.
Jamal Abbasi Bolaghi   +3 more
doaj   +1 more source

THD Reduction of Inverters in Photovoltaic Power Systems

open access: yesMìkrosistemi, Elektronìka ta Akustika, 2020
Photovoltaic power systems are quite common in modern consumer power systems. Alongside with the power sources, converters for photovoltaic energy systems made their own evolution path that was defined by two main requirements that have to be fulfilled ...
Ihor Serhiiovych Fedin   +2 more
doaj   +1 more source

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