Synchronous reluctance motor iron losses: considering machine non-linearity at MTPA, FW, and MTPV operating conditions

Synchronous reluctance machine has high flux density fluctuations in the iron due to the high harmonics results from the rotor anisotropy. Thus, an accurate computation of the iron losses is of paramount importance, especially during the design stage. In this paper, a non-linear analytical model con...

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Main Authors: Mahmoud, Hanafy, Bacco, Giacomo, Degano, Michele, Bianchi, Nicola, Gerada, C.
Format: Article
Language:English
Published: IEEE 2018
Subjects:
Online Access:https://eprints.nottingham.ac.uk/50173/
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author Mahmoud, Hanafy
Bacco, Giacomo
Degano, Michele
Bianchi, Nicola
Gerada, C.
author_facet Mahmoud, Hanafy
Bacco, Giacomo
Degano, Michele
Bianchi, Nicola
Gerada, C.
author_sort Mahmoud, Hanafy
building Nottingham Research Data Repository
collection Online Access
description Synchronous reluctance machine has high flux density fluctuations in the iron due to the high harmonics results from the rotor anisotropy. Thus, an accurate computation of the iron losses is of paramount importance, especially during the design stage. In this paper, a non-linear analytical model considering the magnetic iron saturation and the slotting effect is proposed. The model estimates accurately the iron losses at a wide range of operating speed. In addition, the accuracy of the non-linear model when the machine is highly saturated, i.e. when it works along the MTPA trajectory, is presented and verified. The model presented is general and can be applied to other configurations. A 36-slot four-pole machine, with three flux-barriers per pole is considered as a case study. Finite element analysis is used to validate the results achieved by means of the non-linear analytical model. Furthermore, an experimental setup is built to validate the simulation results.
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spelling nottingham-501732018-03-06T03:10:00Z https://eprints.nottingham.ac.uk/50173/ Synchronous reluctance motor iron losses: considering machine non-linearity at MTPA, FW, and MTPV operating conditions Mahmoud, Hanafy Bacco, Giacomo Degano, Michele Bianchi, Nicola Gerada, C. Synchronous reluctance machine has high flux density fluctuations in the iron due to the high harmonics results from the rotor anisotropy. Thus, an accurate computation of the iron losses is of paramount importance, especially during the design stage. In this paper, a non-linear analytical model considering the magnetic iron saturation and the slotting effect is proposed. The model estimates accurately the iron losses at a wide range of operating speed. In addition, the accuracy of the non-linear model when the machine is highly saturated, i.e. when it works along the MTPA trajectory, is presented and verified. The model presented is general and can be applied to other configurations. A 36-slot four-pole machine, with three flux-barriers per pole is considered as a case study. Finite element analysis is used to validate the results achieved by means of the non-linear analytical model. Furthermore, an experimental setup is built to validate the simulation results. IEEE 2018-03-01 Article PeerReviewed application/pdf en https://eprints.nottingham.ac.uk/50173/1/Synchronous%20Reluctance%20Motor%20Iron%20losses%20Considering%20Machine%20Non-Linearity%20at%20MTPA%2C%20FW%2C%20and%20MTPV%20Operating%20Conditions.pdf Mahmoud, Hanafy, Bacco, Giacomo, Degano, Michele, Bianchi, Nicola and Gerada, C. (2018) Synchronous reluctance motor iron losses: considering machine non-linearity at MTPA, FW, and MTPV operating conditions. IEEE Transactions on Energy Conversion . ISSN 0885-8969 Synchronous reluctance machine; Iron saturation; Non-linear analytical models; Iron losses computation; Finite element analysis http://ieeexplore.ieee.org/document/8305613/ doi:10.1109/TEC.2018.2811543 doi:10.1109/TEC.2018.2811543
spellingShingle Synchronous reluctance machine; Iron saturation; Non-linear analytical models; Iron losses computation; Finite element analysis
Mahmoud, Hanafy
Bacco, Giacomo
Degano, Michele
Bianchi, Nicola
Gerada, C.
Synchronous reluctance motor iron losses: considering machine non-linearity at MTPA, FW, and MTPV operating conditions
title Synchronous reluctance motor iron losses: considering machine non-linearity at MTPA, FW, and MTPV operating conditions
title_full Synchronous reluctance motor iron losses: considering machine non-linearity at MTPA, FW, and MTPV operating conditions
title_fullStr Synchronous reluctance motor iron losses: considering machine non-linearity at MTPA, FW, and MTPV operating conditions
title_full_unstemmed Synchronous reluctance motor iron losses: considering machine non-linearity at MTPA, FW, and MTPV operating conditions
title_short Synchronous reluctance motor iron losses: considering machine non-linearity at MTPA, FW, and MTPV operating conditions
title_sort synchronous reluctance motor iron losses: considering machine non-linearity at mtpa, fw, and mtpv operating conditions
topic Synchronous reluctance machine; Iron saturation; Non-linear analytical models; Iron losses computation; Finite element analysis
url https://eprints.nottingham.ac.uk/50173/
https://eprints.nottingham.ac.uk/50173/
https://eprints.nottingham.ac.uk/50173/