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Smooth DC-Link Y-Source Inverters: Suppression of Shoot-Through Current and Avoiding DC Magnetism

Ali Nikbahar Orcid Logo, Mohammad Monfared Orcid Logo

IEEE Transactions on Power Electronics, Volume: 37, Issue: 10, Pages: 12357 - 12369

Swansea University Author: Mohammad Monfared Orcid Logo

Abstract

The Y-source impedance network is truly referred to as the origin of the magnetically coupled impedance source (MCIS) inverters. The key characteristics, including high boost capability and design flexibility, are associated with the coupled inductor turn ratio. However, the magnetic element brings...

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Published in: IEEE Transactions on Power Electronics
ISSN: 0885-8993 1941-0107
Published: Institute of Electrical and Electronics Engineers (IEEE) 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa60127
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spelling 2022-10-31T15:27:14.1120556 v2 60127 2022-06-03 Smooth DC-Link Y-Source Inverters: Suppression of Shoot-Through Current and Avoiding DC Magnetism adab4560ff08c8e5181ff3f12a4c36fb 0000-0002-8987-0883 Mohammad Monfared Mohammad Monfared true false 2022-06-03 EEEG The Y-source impedance network is truly referred to as the origin of the magnetically coupled impedance source (MCIS) inverters. The key characteristics, including high boost capability and design flexibility, are associated with the coupled inductor turn ratio. However, the magnetic element brings some practical challenges, such as voltage spikes, high shoot-through (ST) current, and bulky coupled inductors. This paper proposes two new Y-source inverters with clamped DC-link voltage. Due to the high boost ability, they are suitable for single-stage high gain inversions. Additionally, the significant reduction in the amplitude of the ST current leads to a reduction of the total power loss and capacity of the reactive component. Another attractive characteristic is that the Y-shaped coupled inductor's stored energy is no longer affected by the power rating of the converter, as a result of the zero dc magnetizing current. All these contribute to the high efficiency and power density of the proposed converters. The design guidelines of the components are presented and a thorough comparison with the state of the art is carried out. The achievements are then confirmed through extensive tests on a 500W laboratory setup. Journal Article IEEE Transactions on Power Electronics 37 10 12357 12369 Institute of Electrical and Electronics Engineers (IEEE) 0885-8993 1941-0107 1 10 2022 2022-10-01 10.1109/tpel.2022.3178202 COLLEGE NANME Electronic and Electrical Engineering COLLEGE CODE EEEG Swansea University 2022-10-31T15:27:14.1120556 2022-06-03T10:51:12.4685133 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering Ali Nikbahar 0000-0001-8927-6326 1 Mohammad Monfared 0000-0002-8987-0883 2 60127__24313__6e619a9c70284018951a702f4112a652.pdf Final_Version_SU.pdf 2022-06-14T15:00:38.4212152 Output 1334158 application/pdf Accepted Manuscript true true eng
title Smooth DC-Link Y-Source Inverters: Suppression of Shoot-Through Current and Avoiding DC Magnetism
spellingShingle Smooth DC-Link Y-Source Inverters: Suppression of Shoot-Through Current and Avoiding DC Magnetism
Mohammad Monfared
title_short Smooth DC-Link Y-Source Inverters: Suppression of Shoot-Through Current and Avoiding DC Magnetism
title_full Smooth DC-Link Y-Source Inverters: Suppression of Shoot-Through Current and Avoiding DC Magnetism
title_fullStr Smooth DC-Link Y-Source Inverters: Suppression of Shoot-Through Current and Avoiding DC Magnetism
title_full_unstemmed Smooth DC-Link Y-Source Inverters: Suppression of Shoot-Through Current and Avoiding DC Magnetism
title_sort Smooth DC-Link Y-Source Inverters: Suppression of Shoot-Through Current and Avoiding DC Magnetism
author_id_str_mv adab4560ff08c8e5181ff3f12a4c36fb
author_id_fullname_str_mv adab4560ff08c8e5181ff3f12a4c36fb_***_Mohammad Monfared
author Mohammad Monfared
author2 Ali Nikbahar
Mohammad Monfared
format Journal article
container_title IEEE Transactions on Power Electronics
container_volume 37
container_issue 10
container_start_page 12357
publishDate 2022
institution Swansea University
issn 0885-8993
1941-0107
doi_str_mv 10.1109/tpel.2022.3178202
publisher Institute of Electrical and Electronics Engineers (IEEE)
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering
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description The Y-source impedance network is truly referred to as the origin of the magnetically coupled impedance source (MCIS) inverters. The key characteristics, including high boost capability and design flexibility, are associated with the coupled inductor turn ratio. However, the magnetic element brings some practical challenges, such as voltage spikes, high shoot-through (ST) current, and bulky coupled inductors. This paper proposes two new Y-source inverters with clamped DC-link voltage. Due to the high boost ability, they are suitable for single-stage high gain inversions. Additionally, the significant reduction in the amplitude of the ST current leads to a reduction of the total power loss and capacity of the reactive component. Another attractive characteristic is that the Y-shaped coupled inductor's stored energy is no longer affected by the power rating of the converter, as a result of the zero dc magnetizing current. All these contribute to the high efficiency and power density of the proposed converters. The design guidelines of the components are presented and a thorough comparison with the state of the art is carried out. The achievements are then confirmed through extensive tests on a 500W laboratory setup.
published_date 2022-10-01T04:17:58Z
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