Common-ground transformerless inverter for solar photovoltaic module

Hasan, SU; Shaffer, B; Hassan, HA; Scott, MJ; Siwakoti, Y; Town, GE

Common-ground transformerless inverter for solar photovoltaic module

Hasan, SU

Shaffer, B Hassan, HA Scott, MJ Siwakoti, Y

Town, GE

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Publication Type:: Conference Proceeding
Citation:: Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, 2018, 2018-March pp. 167 - 172
Issue Date:: 2018-04-18

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Field	Value	Language
dc.contributor.author	Hasan, SU https://orcid.org/0000-0001-9462-7952	en_US
dc.contributor.author	Shaffer, B	en_US
dc.contributor.author	Hassan, HA	en_US
dc.contributor.author	Scott, MJ	en_US
dc.contributor.author	Siwakoti, Y https://orcid.org/0000-0002-3869-412X	en_US
dc.contributor.author	Town, GE	en_US
dc.date.issued	2018-04-18	en_US
dc.identifier.citation	Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, 2018, 2018-March pp. 167 - 172	en_US
dc.identifier.isbn	9781538611807	en_US
dc.identifier.uri	http://hdl.handle.net/10453/128526
dc.description.abstract	© 2018 IEEE. This paper presents a new single-phase transformerless inverter providing common ground for grid-connected photovoltaic (PV) systems. It consists of 5 switches, one diode, one capacitor, one small inductor and a small filter at the output stage. A simple Unipolar Sinusoidal Pulse-Width Modulation (SPWM) technique is used to operate the proposed inverter to minimize losses, output current ripple, filter requirements and improve its electromagnetic compatibility (EMC). The proposed topology shares a common ground with the grid and a capacitor is utilized as a virtual DC bus to provide the negative power cycle of the inverter. The capacitor is charged regardless of any switching cycle using a dedicated switch which can in turn reduce the size of capacitor in relation to the switching frequency. The peak ac output voltage is equal to the input DC voltage which reduces the requirement of the high input DC voltages. Simulation and experimental results for a 1 kW prototype are presented to demonstrate the usefulness of the proposed topology.	en_US
dc.relation.ispartof	Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC	en_US
dc.relation.isbasedon	10.1109/APEC.2018.8341004	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Common-ground transformerless inverter for solar photovoltaic module	en_US
dc.type	Conference Proceeding
utslib.citation.volume	2018-March	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
utslib.copyright.status	closed_access	*
pubs.publication-status	Published	en_US
pubs.volume	2018-March	en_US

Abstract:

© 2018 IEEE. This paper presents a new single-phase transformerless inverter providing common ground for grid-connected photovoltaic (PV) systems. It consists of 5 switches, one diode, one capacitor, one small inductor and a small filter at the output stage. A simple Unipolar Sinusoidal Pulse-Width Modulation (SPWM) technique is used to operate the proposed inverter to minimize losses, output current ripple, filter requirements and improve its electromagnetic compatibility (EMC). The proposed topology shares a common ground with the grid and a capacitor is utilized as a virtual DC bus to provide the negative power cycle of the inverter. The capacitor is charged regardless of any switching cycle using a dedicated switch which can in turn reduce the size of capacitor in relation to the switching frequency. The peak ac output voltage is equal to the input DC voltage which reduces the requirement of the high input DC voltages. Simulation and experimental results for a 1 kW prototype are presented to demonstrate the usefulness of the proposed topology.

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http://hdl.handle.net/10453/128526