A comparative analysis of HB based converters for PV systems

Christopher. J. Rodríguez-Cortes,Pánfilo R. Martínez-Rodríguez,José M. Sosa-Zúñiga,Gerardo Vázquez-Guzmán,Ángel Hernández-Gómez,David Reyes-Cruz

2023 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)（2023）

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摘要

This work comparative analysis of transformerless power converters based on the conventional full-bridge converter is presented. The comparison is aimed at Transformerless converters to mitigate leakage ground currents in PV systems. The converters compared in this paper are the H5, HERIC, and DD-Buck converters. A comparative analysis is presented between the converters to evaluate performance indices. The main performance indices analyzed in this work are efficiency, Total Harmonic Distortion in current and voltage, and Ground Leakage Currents. Finally, experimental results are performed using a 1 kW academic prototype to evaluate the performance of the DD-Buck in a transform-less inverter application.

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关键词

Photovoltaic System,Power Conversion,Harmonic Distortion,Total Harmonic Distortion,Analysis Of Converter,Pulse Width,Power Loss,Common Mode,Output Current,Hybrid Technique,Switching Loss,Modulation Technique,Nominal Power,Inverter Output,Buck Converter,Switching Pattern,Ac Side,Common-mode Voltage,Additional Switching,Electromagnetic Compatibility,Pulsewidth Modulation Scheme,Common-mode Current,Inverter Output Voltage,Bidirectional Switch,Null States,Voltage Distortion,Modulation Scheme,Semiconductor Devices,Root Mean Square Values,Stray Capacitance

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