High-buck in Buck and High-boost in Boost Dual-Mode Inverter (Hb2DMI)

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Title: High-buck in Buck and High-boost in Boost Dual-Mode Inverter (Hb2DMI)
Authors: Abbaszadeh, Mohammad-AliMonfared, MohammadHeydari-Doostabad, Hamed
Permanent link: http://hdl.handle.net/10197/12655
Date: Jun-2021
Online since: 2021-11-16T15:17:25Z
Abstract: The application of the dual-mode time-sharing technique in a novel transformerless photovoltaic (PV) inverters is proposed and investigated. The simultaneous high step-down or high step-up conversion with 97.6 % peak efficiency and injected current with THD < 2% is achieved. The leakage current problem, which is a main concern with the transformerless PV inverters, is around 20 mA. The indirect current control, especially at transition modes of operation is highly improved by utilizing a fast dead-beat control scheme. The working principles of the proposed converter show that the step-down and the step-up voltage gains are (D/(1-D)) 2 and D/(1-D) 2 , respectively. Furthermore, a 1 kW, 220 VAC and 200 VDC experimental prototype is implemented to confirm the theoretical achievements.
Funding Details: Science Foundation Ireland
Type of material: Journal Article
Publisher: IEEE
Journal: IEEE Transactions on Industrial Electronics
Volume: 68
Issue: 6
Start page: 4838
End page: 4847
Copyright (published version): 2020 IEEE
Keywords: InvertersInductorsPulse width modulationTopologyCapacitorsHigh-voltage techniquesSwitches
DOI: 10.1109/tie.2020.2988240
Language: en
Status of Item: Peer reviewed
ISSN: 0278-0046
This item is made available under a Creative Commons License: https://creativecommons.org/licenses/by-nc-nd/3.0/ie/
Appears in Collections:Electrical and Electronic Engineering Research Collection

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