Bi-directional converter for interfacing appliances with HFAC enabled power distribution systems in critical applications

Fernando, WA; Lu, DDC

Bi-directional converter for interfacing appliances with HFAC enabled power distribution systems in critical applications

Fernando, WA Lu, DDC

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Publication Type:: Conference Proceeding
Citation:: 2017 20th International Conference on Electrical Machines and Systems, ICEMS 2017, 2017
Issue Date:: 2017-10-02

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Field	Value	Language
dc.contributor.author	Fernando, WA	en_US
dc.contributor.author	Lu, DDC https://orcid.org/0000-0003-2145-0580	en_US
dc.date.available	2020-05-25T19:17:21Z
dc.date.issued	2017-10-02	en_US
dc.identifier.citation	2017 20th International Conference on Electrical Machines and Systems, ICEMS 2017, 2017	en_US
dc.identifier.isbn	9781538632468	en_US
dc.identifier.uri	http://hdl.handle.net/10453/126153
dc.description.abstract	© 2017 IEEE. A new topology for a robust HFAC enabled bi-directional AC-AC converter is presented in this paper. HFAC PDSs are gaining traction in critical applications within outer space, aerospace and ground transportation PDSs as well as in renewable energy systems due to their advantages of being light deadweight, high power density, smaller capacitors and low arc-flash fault risk etc. Due to prominent adverse factors such as high impedance due to skin effect etc., the grid parameters (frequency, voltage etc.) selected for HFAC PDSs vary depending on the PDS length and power rating. Many of the electrical appliances available today cannot be cross matched and used in PDSs with other parameters, therefore the use of power converters as interfacing devices has been recommended. Currently there are only a few types of HFAC converters available in the market; out of which a majority uses resonant filters for sinewave generation whereas the remainder generates non-sinusoidal waveforms requiring complex controllers for voltage and frequency regulation along the PDS. The proposed two-stage symmetrical topology converter with low-pass filters provide the operation flexibility within a band of voltages and frequencies. The stage-1 H-bridge is PWM switched to boost the DC link voltage, whereas the stage-2 H-bridge is SPWM switched followed by the lowpass filter to generate sinewave output. The two separate PWM controllers used are implemented on a single microcontroller board and swapped for bidirectional operation. Therefore, the new bi-directional converter could be used in multiple applications; thus, supports mass production leading to availability in abundance at low cost.	en_US
dc.relation.ispartof	2017 20th International Conference on Electrical Machines and Systems, ICEMS 2017	en_US
dc.relation.isbasedon	10.1109/ICEMS.2017.8056490	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Bi-directional converter for interfacing appliances with HFAC enabled power distribution systems in critical applications	en_US
dc.type	Conference Proceeding
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	open_access	*
pubs.publication-status	Published	en_US

Abstract:

© 2017 IEEE. A new topology for a robust HFAC enabled bi-directional AC-AC converter is presented in this paper. HFAC PDSs are gaining traction in critical applications within outer space, aerospace and ground transportation PDSs as well as in renewable energy systems due to their advantages of being light deadweight, high power density, smaller capacitors and low arc-flash fault risk etc. Due to prominent adverse factors such as high impedance due to skin effect etc., the grid parameters (frequency, voltage etc.) selected for HFAC PDSs vary depending on the PDS length and power rating. Many of the electrical appliances available today cannot be cross matched and used in PDSs with other parameters, therefore the use of power converters as interfacing devices has been recommended. Currently there are only a few types of HFAC converters available in the market; out of which a majority uses resonant filters for sinewave generation whereas the remainder generates non-sinusoidal waveforms requiring complex controllers for voltage and frequency regulation along the PDS. The proposed two-stage symmetrical topology converter with low-pass filters provide the operation flexibility within a band of voltages and frequencies. The stage-1 H-bridge is PWM switched to boost the DC link voltage, whereas the stage-2 H-bridge is SPWM switched followed by the lowpass filter to generate sinewave output. The two separate PWM controllers used are implemented on a single microcontroller board and swapped for bidirectional operation. Therefore, the new bi-directional converter could be used in multiple applications; thus, supports mass production leading to availability in abundance at low cost.

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http://hdl.handle.net/10453/126153