H6-type transformerless single-phase inverter for grid-tied photovoltaic system
There has been an increasing interest in transformerless inverter for grid-tied photovoltaic (PV) system because of the benefits of lower cost, smaller volume as well as higher efficiency compared with the ones with transformer. However, one of the technical challenges of the transformerless inverte...
Saved in:
Main Authors: | , |
---|---|
Format: | Article |
Language: | English |
Published: |
Institution of Engineering and Technology (IET)
2015
|
Subjects: | |
Online Access: | http://eprints.um.edu.my/13781/1/H6-type_transformerless_single-phase_inverter_for_grid.pdf http://eprints.um.edu.my/13781/ http://digital-library.theiet.org/content/journals/10.1049/iet-pel.2014.0251 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
my.um.eprints.13781 |
---|---|
record_format |
eprints |
spelling |
my.um.eprints.137812019-10-25T05:34:31Z http://eprints.um.edu.my/13781/ H6-type transformerless single-phase inverter for grid-tied photovoltaic system Islam, M. Mekhilef, Saad T Technology (General) TK Electrical engineering. Electronics Nuclear engineering There has been an increasing interest in transformerless inverter for grid-tied photovoltaic (PV) system because of the benefits of lower cost, smaller volume as well as higher efficiency compared with the ones with transformer. However, one of the technical challenges of the transformerless inverter is the safety issue of leakage current which needs to be addressed carefully. In addition, according to the international regulations, transformerless inverter should be capable of handling a certain amount of reactive power. In this study, a new H6-type transformerless inverter for grid-tied PV system is proposed that can eliminate the threat of leakage current. The proposed topology has also the capability to inject reactive power into the utility grid. Three-level output voltage employing unipolar sinusoidal pulse-width modulation can be achieved with the proposed topology. The proposed topology structure and detail operation principle with reactive power control are investigated. The relationship among the existing topologies and their reactive power control capability are also discussed. The proposed topology is simulated in MATLAB/Simulink software to initially verify the accuracy of theoretical explanations. Finally, a universal prototype rated 1 kW has been built and tested. The experimental results validate the theoretical analysis and simulation results. Institution of Engineering and Technology (IET) 2015-04 Article PeerReviewed application/pdf en http://eprints.um.edu.my/13781/1/H6-type_transformerless_single-phase_inverter_for_grid.pdf Islam, M. and Mekhilef, Saad (2015) H6-type transformerless single-phase inverter for grid-tied photovoltaic system. IET Power Electronics, 8 (4). pp. 636-644. ISSN 1755-4543 http://digital-library.theiet.org/content/journals/10.1049/iet-pel.2014.0251 DOI 10.1049/iet-pel.2014.0251 |
institution |
Universiti Malaya |
building |
UM Library |
collection |
Institutional Repository |
continent |
Asia |
country |
Malaysia |
content_provider |
Universiti Malaya |
content_source |
UM Research Repository |
url_provider |
http://eprints.um.edu.my/ |
language |
English |
topic |
T Technology (General) TK Electrical engineering. Electronics Nuclear engineering |
spellingShingle |
T Technology (General) TK Electrical engineering. Electronics Nuclear engineering Islam, M. Mekhilef, Saad H6-type transformerless single-phase inverter for grid-tied photovoltaic system |
description |
There has been an increasing interest in transformerless inverter for grid-tied photovoltaic (PV) system because of the benefits of lower cost, smaller volume as well as higher efficiency compared with the ones with transformer. However, one of the technical challenges of the transformerless inverter is the safety issue of leakage current which needs to be addressed carefully. In addition, according to the international regulations, transformerless inverter should be capable of handling a certain amount of reactive power. In this study, a new H6-type transformerless inverter for grid-tied PV system is proposed that can eliminate the threat of leakage current. The proposed topology has also the capability to inject reactive power into the utility grid. Three-level output voltage employing unipolar sinusoidal pulse-width modulation can be achieved with the proposed topology. The proposed topology structure and detail operation principle with reactive power control are investigated. The relationship among the existing topologies and their reactive power control capability are also discussed. The proposed topology is simulated in MATLAB/Simulink software to initially verify the accuracy of theoretical explanations. Finally, a universal prototype rated 1 kW has been built and tested. The experimental results validate the theoretical analysis and simulation results. |
format |
Article |
author |
Islam, M. Mekhilef, Saad |
author_facet |
Islam, M. Mekhilef, Saad |
author_sort |
Islam, M. |
title |
H6-type transformerless single-phase inverter for grid-tied photovoltaic system |
title_short |
H6-type transformerless single-phase inverter for grid-tied photovoltaic system |
title_full |
H6-type transformerless single-phase inverter for grid-tied photovoltaic system |
title_fullStr |
H6-type transformerless single-phase inverter for grid-tied photovoltaic system |
title_full_unstemmed |
H6-type transformerless single-phase inverter for grid-tied photovoltaic system |
title_sort |
h6-type transformerless single-phase inverter for grid-tied photovoltaic system |
publisher |
Institution of Engineering and Technology (IET) |
publishDate |
2015 |
url |
http://eprints.um.edu.my/13781/1/H6-type_transformerless_single-phase_inverter_for_grid.pdf http://eprints.um.edu.my/13781/ http://digital-library.theiet.org/content/journals/10.1049/iet-pel.2014.0251 |
_version_ |
1648736128665124864 |
score |
13.18916 |