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Real time parameter estimation for power quality control and intelligent protection of grid-connected power electronic converters

Sumner, M.; Abusorrah, Abdullah; Thomas, David W.P.; Zanchetta, Pericle

Authors

MARK SUMNER mark.sumner@nottingham.ac.uk
Professor of Electrical Energy Systems

Abdullah Abusorrah

DAVID THOMAS dave.thomas@nottingham.ac.uk
Professor of Electromagnetics Applications



Abstract

This paper presents a method to identify power system impedance in real-time using signals obtained from grid- connected power electronic converters. The proposed impedance estimation has potential applications in renewable/distributed energy systems, STATCOM, and solid state substations. The method uses wavelets to analyze transients associated with small disturbances imposed by power converters and determine the net impedance back to the source. A data capture period of 5ms is applied to an accurate impedance estimation which provides the possibility of ultra fast fault detection (i.e. within a half cycle). The paper describes how the proposed method would enhance the distributed generation operation during faults.

Journal Article Type Article
Publication Date Jul 1, 2014
Journal IEEE Transactions on Smart Grid
Print ISSN 1949-3053
Electronic ISSN 1949-3061
Publisher Institute of Electrical and Electronics Engineers
Peer Reviewed Peer Reviewed
Volume 5
Issue 4
APA6 Citation Sumner, M., Abusorrah, A., Thomas, D. W., & Zanchetta, P. (2014). Real time parameter estimation for power quality control and intelligent protection of grid-connected power electronic converters. IEEE Transactions on Smart Grid, 5(4), https://doi.org/10.1109/TSG.2014.2298495
DOI https://doi.org/10.1109/TSG.2014.2298495
Keywords Fault location, impedance measurement, power quality, protection, STATCOM
Publisher URL http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6807521
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information © 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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