Skip to main content

Research Repository

Advanced Search

Comparison of two three-phase pll systems for more electric aircraft

Bifaretti, Stefano; Zanchetta, Pericle; Lavopa, Elisabetta

Authors

Stefano Bifaretti

Pericle Zanchetta pericle.zanchetta@nottingham.ac.uk

Elisabetta Lavopa



Abstract

The More Electric Aircraft power system is characterized by variable supply frequency, in general between 360Hz and 900Hz. All equipment on board the aircraft have to operate delivering high performance under this variable frequency condition. In particular, power electronic converters need accurate control algorithms able to track the fundamental phase and frequency in real time, both in normal and unusual conditions. Phase Locked Loop (PLL) based algorithms are commonly used in traditional single and three phase power systems to provide phase and frequency estimations of the supply. Despite the simplicity of those algorithms, large estimation errors can arise when power supply voltage has variable frequency or amplitude, presents unbalances or is polluted with harmonics. To improve the quality of the phase and frequency real-time estimations, a robust PLL algorithm, based on a prediction-correction filter, is presented in this paper and compared with a Discrete Fourier Transform (DFT) based procedure. The performances of the two algorithms, implemented in a floating-point DSP, have been compared through an experimental validation obtained on a laboratory power converter prototype.

Journal Article Type Article
Publication Date Dec 1, 2014
Journal IEEE Transactions on Power Electronics
Print ISSN 0885-8993
Electronic ISSN 0885-8993
Publisher Institute of Electrical and Electronics Engineers
Peer Reviewed Peer Reviewed
Volume 29
Issue 12
APA6 Citation Bifaretti, S., Zanchetta, P., & Lavopa, E. (2014). Comparison of two three-phase pll systems for more electric aircraft. IEEE Transactions on Power Electronics, 29(12), doi:10.1109/TPEL.2014.2307003
DOI https://doi.org/10.1109/TPEL.2014.2307003
Keywords Aircraft; Aircraft control; Algorithms; Delay circuits; Discrete Fourier transforms; Electric power systems; Phase locked loops; Power converters
Aircraft power systems; Experimental validations; Large estimation errors; More electric aircraft; Phase est
Publisher URL http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6748104
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 users, 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 components of this work in other works.

Files

Comparison of two three-phase pll systems for more electric aircraft.pdf (1.5 Mb)
PDF

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





You might also like



Downloadable Citations

;