Results 41 to 50 of about 21,283 (339)

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

Three Phase Trans-Quasi-Z-Source Inverter

open access: yesCPSS Transactions on Power Electronics and Applications, 2018
In this paper, a new type of single-stage boost Transquasi- Z-source inverter topology is presented. The basic structure and working principle of the inverter are analyzed and its voltage gain is deduced. The model of the Trans-quasi-Z-source network is established by using Laplace transform.
Xupeng Fang   +3 more
openaire   +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

Impedance-compensated grid synchronisation for extending the stability range of weak grids with voltage source converters [PDF]

open access: yes, 2016
This paper demonstrates how the range of stable power transfer in weak grids with voltage source converters (VSCs) can be extended by modifying the grid synchronisation mechanism of a conventional synchronous reference frame phase locked loop (PLL).
D'Arco, Salvatore   +3 more
core   +2 more sources

Comparison of FCS-MPC Strategies in a Grid-Connected Single-Phase Quasi-Z Source Inverter

open access: yesElectronics, 2023
This paper compares two finite-control-set model predictive control (FCS-MPC) strategies in the context of a grid-connected single-phase quasi-Z source inverter (SP-qZSI).
Jorge L. Saavedra   +6 more
semanticscholar   +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

Large-signal stability conditions for semi-quasi-Z-source inverters: switched and averaged models

open access: yes, 2013
The recently introduced semi-quasi-Z-source in- verter can be interpreted as a DC-DC converter whose input- output voltage gain may take any value between minus infinity and 1 depending on the applied duty cycle. In order to generate a sinusoidal voltage
De Nicolo, Lisandro   +2 more
core   +1 more source

A Dual Gate Spin Field Effect Transistor With Very Low Switching Voltage and Large ON-to-OFF Conductance Ratio [PDF]

open access: yes, 2007
We propose and analyze a novel dual-gate Spin Field Effect Transistor (SpinFET) with half-metallic ferromagnetic source and drain contacts. The transistor has two gate pads that can be biased independently.
Cahay   +8 more
core   +1 more source

Optimized Modulation Scheme for Four-Leg Quasi Z-Source Inverter: Reducing Power Loss and Improving Output Quality

open access: yesIEEE Access, 2023
This study introduces a new three-dimensional space vector modulation technique for a four-leg quasi Z-source inverter (4L-qZSI) integrating a qZSN and a two-level four-leg inverter. The proposed method encompasses three variants, namely 3DZSVM2, 3DZSVM4,
Abderahmane Abid   +7 more
semanticscholar   +1 more source

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