A survey on Z-source inverter

Sreeprathab, N. R.; Joseph, X. Felix

doi:10.1109/iccicct.2014.6993182

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…Of the numerous inverter topologies and controls studied in the research literature [1][2][3][4][5], the high frequency link (HF-link) inverter, which is shown in Figure 1, converts DC input volt age, such as from fuel cells or photovoltaic arrays, into line frequency AC voltage without needing an internal DC bus. It has practical advantages because it contains a high-frequency transformer to provide galvanic isolation for safety and voltage step-up [6].…”

Section: Introductionmentioning

confidence: 99%

Commutation technique for high frequency link inverter without operational limitations and dead time

Kim

Balog

2016

2016 IEEE Energy Conversion Congress and Exposition (ECCE)

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An improved commutation technique for the ac-ac output converter circuit of a pulse width modulated high frequency link (HF-link) inverter has been investigated. The high frequency link inverter converts a DC input voltage into line frequency AC output voltage using a high-frequency transformer for voltage step-up and galvanic isolation, without an intermediate rectification and DC bus. In this topology, there is a direct ac-ac converter, which processes the HF-link square-wave voltage into the desired sinusoidal ac output voltage. To do this requires a commutation method to prevent shoot-through when output current changes direction or commutates from one switch to the next. Conventionally, dead time is used but this adds distortion to the output waveform. Previously a commutation technique without dead time was introduced, but it required a number of assumptions on the inverter load impedance and link voltage characteristics that made it useful for a stand-alone R-L load but not practical for grid connection. The commutation method in this paper does not require dead time and does not impose any limitation on the output inductance and link voltage magnitude and frequency. Simulations, results experimental results and detailed analysis of output current THD values are presented. I also would like to express my gratitude to my colleagues in the Renewable Energy And Power Electronics Research Laboratory at Texas A&M University for their help, supports, advice and being good friends with me for the entire time during my study. iv CONTRIBUTORS AND FUNDING SOURCES This work was supervised by a thesis committee consisting of Professor Balog and Professor Bhattacharyya of the Department of Electrical and Computer Engineering,

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Section: Introductionmentioning

confidence: 99%

Commutation technique for high frequency link inverter without operational limitations and dead time

Kim

Balog

2016

2016 IEEE Energy Conversion Congress and Exposition (ECCE)

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IGBT Open-Circuit Fault Diagnosis of O-Z-Source Inverter Based on Back Propagation Neural Network

Zhuang,

Liu,

et al. 2023

2023 4th International Conference on Smart Grid and Energy Engineering (SGEE)

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Impedance-Source DC-to-AC/DC Converter

Sivapriyan

Elangovan

2019

Electronics

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This article presents a novel impedance-source-based direct current (DC)-to-alternating current (AC)/DC converter (Z-Source DAD Converter). The Z-Source DAD converter converts the input DC voltage into AC or DC with buck or boost in the load voltage. This Z-Source DAD conversion circuit is a single-stage power conversion system. This converter circuit converts the input DC voltage into variable-magnitude output DC voltage or converts the DC voltage into a variable-magnitude output AC voltage. The higher voltage magnitude in boost mode can be controlled by controlling the shoot-through (ST) state timing of the converter. MATLAB-Simulink simulation and microcontroller-based hardware circuit results are presented to demonstrate power conversion with the buck and boost features of the Z-Source DAD converter for both types of output voltages. The simulation and experimental results show that the Z-Source DAD converter converts the given DC supply into AC or DC with buck or boost in the output load voltage.

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A survey on Z-source inverter

Cited by 3 publications

References 13 publications

Commutation technique for high frequency link inverter without operational limitations and dead time

Commutation technique for high frequency link inverter without operational limitations and dead time

IGBT Open-Circuit Fault Diagnosis of O-Z-Source Inverter Based on Back Propagation Neural Network

Impedance-Source DC-to-AC/DC Converter

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