Validation of a reduced order model for modular multilevel converters and analysis of circulating current

Lopez, AM; Quevedo, DE; Aguilera, R; Geyer, T; Oikonomou, N

Validation of a reduced order model for modular multilevel converters and analysis of circulating current

Lopez, AM Quevedo, DE Aguilera, R

Geyer, T Oikonomou, N

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Publication Type:: Conference Proceeding
Citation:: 2015 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015, 2015
Issue Date:: 2015-10-27

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Field	Value	Language
dc.contributor.author	Lopez, AM	en_US
dc.contributor.author	Quevedo, DE	en_US
dc.contributor.author	Aguilera, R https://orcid.org/0000-0003-4166-8341	en_US
dc.contributor.author	Geyer, T	en_US
dc.contributor.author	Oikonomou, N	en_US
dc.date.issued	2015-10-27	en_US
dc.identifier.citation	2015 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015, 2015	en_US
dc.identifier.isbn	9789075815221	en_US
dc.identifier.uri	http://hdl.handle.net/10453/120626
dc.description.abstract	© 2015 EPE Association and IEEE. In this paper, a recently proposed reduced order model for Modular Multilevel Converters is validated and used to analyze the role of the circulating current in the power transfer inside the converter. This model simplifies the analysis of the converter by removing the discontinuities and reducing the order of the system. Therefore, continuous analytical expressions can be obtained and analyzed. The reduced order is used to model the dynamics of the state space variables of the converter. The results show that, the higher the number of modules used in the converter, the more accurate are the results of the model. Moreover, the influence of different harmonic components of the circulating current over the module's voltage ripple, and the influence of the circulating current components on the power transfer in the converter are analyzed. Inter alia, the analysis shows the importance of the even order harmonics of the circulating current in the reactive power transfer within the converter.	en_US
dc.relation.ispartof	2015 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015	en_US
dc.relation.isbasedon	10.1109/EPE.2015.7309192	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Validation of a reduced order model for modular multilevel converters and analysis of circulating current	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	closed_access	*
pubs.publication-status	Published	en_US

Abstract:

© 2015 EPE Association and IEEE. In this paper, a recently proposed reduced order model for Modular Multilevel Converters is validated and used to analyze the role of the circulating current in the power transfer inside the converter. This model simplifies the analysis of the converter by removing the discontinuities and reducing the order of the system. Therefore, continuous analytical expressions can be obtained and analyzed. The reduced order is used to model the dynamics of the state space variables of the converter. The results show that, the higher the number of modules used in the converter, the more accurate are the results of the model. Moreover, the influence of different harmonic components of the circulating current over the module's voltage ripple, and the influence of the circulating current components on the power transfer in the converter are analyzed. Inter alia, the analysis shows the importance of the even order harmonics of the circulating current in the reactive power transfer within the converter.

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http://hdl.handle.net/10453/120626