A new virtual-flux-vector based droop control strategy for parallel connected inverters in microgrids

Hu, J; Zhu, J; Qu, Y; Guerrero, JM

A new virtual-flux-vector based droop control strategy for parallel connected inverters in microgrids

Hu, J Zhu, J

Qu, Y Guerrero, JM

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Publication Type:: Conference Proceeding
Citation:: 2013 IEEE ECCE Asia Downunder - 5th IEEE Annual International Energy Conversion Congress and Exhibition, IEEE ECCE Asia 2013, 2013, pp. 585 - 590
Issue Date:: 2013-09-16

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Field	Value	Language
dc.contributor.author	Hu, J	en_US
dc.contributor.author	Zhu, J https://orcid.org/0000-0002-9763-4047	en_US
dc.contributor.author	Qu, Y	en_US
dc.contributor.author	Guerrero, JM	en_US
dc.date.issued	2013-09-16	en_US
dc.identifier.citation	2013 IEEE ECCE Asia Downunder - 5th IEEE Annual International Energy Conversion Congress and Exhibition, IEEE ECCE Asia 2013, 2013, pp. 585 - 590	en_US
dc.identifier.isbn	9781479904822	en_US
dc.identifier.uri	http://hdl.handle.net/10453/29465
dc.description.abstract	Voltage and frequency droop method is commonly used in microgrids to achieve proper autonomous power sharing without control wire interconnections. This paper proposes a new control strategy for parallel connected inverters in microgrid applications by drooping the flux instead of the inverter output voltage. Firstly, the relation between the inverter flux and the active and reactive powers is mathematically obtained. Secondly, a novel flux droop method is then developed in order to regulate active and reactive powers by drooping the flux amplitude and the phase angle, respectively. In addition, a small-signal model is developed in order to design the main control parameters and study the system dynamics and stability. The proposed control scheme includes a direct flux control (DFC) algorithm, which avoids the use of PI controllers and PWM modulators. The obtained results shows that the proposed flux droop strategy can achieve active and reactive power sharing with much lower frequency deviation and better transient performance than the conventional voltage droop method, thus highlighting the potential use in microgrid applications. © 2013 IEEE.	en_US
dc.relation.ispartof	2013 IEEE ECCE Asia Downunder - 5th IEEE Annual International Energy Conversion Congress and Exhibition, IEEE ECCE Asia 2013	en_US
dc.relation.isbasedon	10.1109/ECCE-Asia.2013.6579157	en_US
dc.title	A new virtual-flux-vector based droop control strategy for parallel connected inverters in microgrids	en_US
dc.type	Conference Proceeding
utslib.for	0906 Electrical and Electronic Engineering	en_US
dc.location.activity	Melbourne, Australia	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
pubs.organisational-group	/University of Technology Sydney/Strength - CCET - Centre for Clean Energy Technology
utslib.copyright.status	recently_added
pubs.publication-status	Published	en_US

Abstract:

Voltage and frequency droop method is commonly used in microgrids to achieve proper autonomous power sharing without control wire interconnections. This paper proposes a new control strategy for parallel connected inverters in microgrid applications by drooping the flux instead of the inverter output voltage. Firstly, the relation between the inverter flux and the active and reactive powers is mathematically obtained. Secondly, a novel flux droop method is then developed in order to regulate active and reactive powers by drooping the flux amplitude and the phase angle, respectively. In addition, a small-signal model is developed in order to design the main control parameters and study the system dynamics and stability. The proposed control scheme includes a direct flux control (DFC) algorithm, which avoids the use of PI controllers and PWM modulators. The obtained results shows that the proposed flux droop strategy can achieve active and reactive power sharing with much lower frequency deviation and better transient performance than the conventional voltage droop method, thus highlighting the potential use in microgrid applications. © 2013 IEEE.

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http://hdl.handle.net/10453/29465