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Non-Intrusive Online Stator Temperature Estimation for Open-End Winding PMSM

Hunter, Nick; Cox, Tom; Zanchetta, Pericle; Odhano, Shafiq Ahmed; Rovere, Luca

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Authors

NICK HUNTER NICK.HUNTER@NOTTINGHAM.AC.UK
Foundation Year Teaching Associate

THOMAS COX T.Cox@nottingham.ac.uk
Assistant Professor

Shafiq Ahmed Odhano

Luca Rovere



Abstract

This paper proposes a new method for online identification of stator winding temperature for an open-end winding (OEW) permanent magnet synchronous motor (PMSM). The method exploits the zero sequence current (ZSC) due to the third harmonic back electromotive force (EMF) circulating in the system in order to estimate the phase resistance, which, in turn, is used to derive the winding temperature. In order to do this a proposed idea of maximum zero sequence current amplitude along with the actual ZSC amplitude and the electrical speed of the motor is used. The temperature is estimated without any additional sensors in a wide operating speed range. A single synchronous phase-locked loop (PLL) is utilised in order to obtain the required parameters. The independence of the rotor position grants the possibility for the exploitation of the proposed winding temperature estimation method in a variety of control techniques including the sensorless control to increase the robustness of the overall system.

Citation

Hunter, N., Cox, T., Zanchetta, P., Odhano, S. A., & Rovere, L. (2018). Non-Intrusive Online Stator Temperature Estimation for Open-End Winding PMSM. In 2018 IEEE Energy Conversion Congress and Exposition (ECCE) (6845-6851). https://doi.org/10.1109/ECCE.2018.8558475

Presentation Conference Type Conference Paper (Published)
Conference Name 2018 IEEE Energy Conversion Congress and Exposition (ECCE)
Start Date Sep 23, 2018
End Date Sep 27, 2018
Acceptance Date Apr 12, 2018
Online Publication Date Dec 6, 2018
Publication Date Sep 23, 2018
Deposit Date Feb 18, 2019
Publicly Available Date Feb 18, 2019
Publisher Institute of Electrical and Electronics Engineers
Pages 6845-6851
Book Title 2018 IEEE Energy Conversion Congress and Exposition (ECCE)
ISBN 9781479973132
DOI https://doi.org/10.1109/ECCE.2018.8558475
Public URL https://nottingham-repository.worktribe.com/output/1563295
Publisher URL https://ieeexplore.ieee.org/document/8558475
Contract Date Feb 18, 2019

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