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Modal analysis of a PMSG-based DC electrical power system in the more electric aircraft using eigenvalues sensitivity

Gao, Fei; Zheng, Xiancheng; Bozhko, Serhiy; Hill, Christopher Ian; Asher, Greg

Authors

Fei Gao

Xiancheng Zheng

SERHIY BOZHKO serhiy.bozhko@nottingham.ac.uk
Professor of Aircraft Electric Power Systems

Christopher Ian Hill

Greg Asher



Abstract

This paper deals with the modeling and small signal stability analysis of a DC-distribution electrical power system (EPS) sourced by a permanent magnet synchronous generator (PMSG). The topology employed here is one of the main candidates for future more-electric aircraft (MEA). A detailed mathematical model is developed and comprehensive EPS modal analysis is performed. Eigenvalue sensitivity and participation factor are utilized in order to assess the effect of machine and control parameters, as well as system operating conditions, on EPS stability. Furthermore, this paper also presents comparative analysis of system models with and without the inclusion of system cabling. This crucial analysis shows that the tendencies in stability behavior can be significantly different with and without cabling. It is therefore shown that system simplification, by removal of cabling, can deliver remarkably misleading results. Time domain simulations are carried out to support the theoretical analysis. The comprehensive analysis presented in this paper provides EPS designers with an extremely useful methodology for the selection of appropriate EPS parameters at the early design stages.

Journal Article Type Article
Journal IEEE Transactions on Transportation Electrification
Electronic ISSN 2332-7782
Publisher Institute of Electrical and Electronics Engineers
Peer Reviewed Peer Reviewed
Volume 1
Issue 1
APA6 Citation Gao, F., Zheng, X., Bozhko, S., Hill, C. I., & Asher, G. (in press). Modal analysis of a PMSG-based DC electrical power system in the more electric aircraft using eigenvalues sensitivity. IEEE Transactions on Transportation Electrification, 1(1), doi:10.1109/TTE.2015.2427312
DOI https://doi.org/10.1109/TTE.2015.2427312
Keywords DC power distribution, eigenvalue sensitivity,
modal analysis, more electric aircraft (MEA), stability
Publisher URL http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7098423
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf

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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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