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Single-Phase Grid-Tied Transformerless Inverter of Zero Leakage Current for PV System

Efficiency; Electric inverters; Solar power generation; Topology; Common mode voltage; Five level inverter; Grid-connected photovoltaic inverters; Grid-tied PV systems; IGBT inverters; Parasitic capacitors; Solar PVs; Transformerless inverters; Leakage currents

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Main Authors: Sabry A., Mohammed Z.M., Nordin F.H., Nik Ali N.H., Al-Ogaili A.S.
Other Authors: 56602511900
Format: Article
Published: Institute of Electrical and Electronics Engineers Inc. 2023
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spelling my.uniten.dspace-257852023-05-29T16:14:16Z Single-Phase Grid-Tied Transformerless Inverter of Zero Leakage Current for PV System Sabry A. Mohammed Z.M. Nordin F.H. Nik Ali N.H. Al-Ogaili A.S. 56602511900 57189300744 25930510500 57196922007 57189511897 Efficiency; Electric inverters; Solar power generation; Topology; Common mode voltage; Five level inverter; Grid-connected photovoltaic inverters; Grid-tied PV systems; IGBT inverters; Parasitic capacitors; Solar PVs; Transformerless inverters; Leakage currents Multi-level transformerless inverters are widely used in grid-tied PV systems since they characterized by higher efficiency and lower cost. In this context, new topologies, modulation, and control schemes were presented to solve problems of a common-mode voltage and leakage current. This work proposes a transformerless five-level inverter with zero leakage current and ability to reduce the harmonic output content for a grid-tied single-phase PV system. The neutral of the grid links to a common on which the negative and the positive terminals of the DC-link are connected via parasitic capacitors that can eliminate the leakage current. The proposed topology, with its inherent circuit structure, leads to boost the overall efficiency. Simulation and experimental results show almost zero leakage current and a high-quality output when maintaining balanced capacitor voltages on the DC-link input. The experimental results show 1.07% THD and 96.3 % maximum efficiency when injecting a power of 1.1 kW that verify the performance of the proposed inverter with PV sources. � 2013 IEEE. Final 2023-05-29T08:14:15Z 2023-05-29T08:14:15Z 2020 Article 10.1109/ACCESS.2019.2963284 2-s2.0-85078139883 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85078139883&doi=10.1109%2fACCESS.2019.2963284&partnerID=40&md5=12d37342bbf747e6b476b537dc4f226a https://irepository.uniten.edu.my/handle/123456789/25785 8 8946611 4361 4371 All Open Access, Gold Institute of Electrical and Electronics Engineers Inc. Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
description Efficiency; Electric inverters; Solar power generation; Topology; Common mode voltage; Five level inverter; Grid-connected photovoltaic inverters; Grid-tied PV systems; IGBT inverters; Parasitic capacitors; Solar PVs; Transformerless inverters; Leakage currents
author2 56602511900
author_facet 56602511900
Sabry A.
Mohammed Z.M.
Nordin F.H.
Nik Ali N.H.
Al-Ogaili A.S.
format Article
author Sabry A.
Mohammed Z.M.
Nordin F.H.
Nik Ali N.H.
Al-Ogaili A.S.
spellingShingle Sabry A.
Mohammed Z.M.
Nordin F.H.
Nik Ali N.H.
Al-Ogaili A.S.
Single-Phase Grid-Tied Transformerless Inverter of Zero Leakage Current for PV System
author_sort Sabry A.
title Single-Phase Grid-Tied Transformerless Inverter of Zero Leakage Current for PV System
title_short Single-Phase Grid-Tied Transformerless Inverter of Zero Leakage Current for PV System
title_full Single-Phase Grid-Tied Transformerless Inverter of Zero Leakage Current for PV System
title_fullStr Single-Phase Grid-Tied Transformerless Inverter of Zero Leakage Current for PV System
title_full_unstemmed Single-Phase Grid-Tied Transformerless Inverter of Zero Leakage Current for PV System
title_sort single-phase grid-tied transformerless inverter of zero leakage current for pv system
publisher Institute of Electrical and Electronics Engineers Inc.
publishDate 2023
_version_ 1806427962618150912
score 13.214268

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