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Electrical Engineering

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25.08.2020 | Original Paper

A modified carrier-based PWM technique for minimization of leakage current in transformer less single-phase grid-tied PV system

verfasst von: Subhendu Bikash Santra, Anupam Acharya, Tanmoy Roy Choudhury, Byamakesh Nayak, Chinmoy Kumar Panigrahi

Erschienen in: Electrical Engineering | Ausgabe 1/2021

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Abstract

This paper discusses the impact of leakage current and its dependency on common mode voltage in transformer less single-phase grid connected photovoltaic (PV) system. Further a new carrier-based PWM method is derived for H bridge single-phase grid-tied PV inverter to minimize leakage current. The proposed modulation strategy is compared with conventional techniques through simulation in MATLAB R2018a. The superiority of the proposed technique is validated in laboratory prototype of a 500 W single-phase grid-tied PV system. The hardware results validate the theoretical findings in appropriate.

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Titel: A modified carrier-based PWM technique for minimization of leakage current in transformer less single-phase grid-tied PV system
verfasst von: Subhendu Bikash Santra
Anupam Acharya
Tanmoy Roy Choudhury
Byamakesh Nayak
Chinmoy Kumar Panigrahi
Publikationsdatum: 25.08.2020
Verlag: Springer Berlin Heidelberg
Erschienen in: Electrical Engineering / Ausgabe 1/2021
Print ISSN: 0948-7921
Elektronische ISSN: 1432-0487
DOI: https://doi.org/10.1007/s00202-020-01092-6

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