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Computation of No-Load Electromagnetic Rotor Losses in High-Speed

Computation of No-Load Electromagnetic Rotor Losses in High-Speed
Computation of No-Load Electromagnetic Rotor Losses in High-Speed
Travelling wave harmonics of flux density on the rotor surface of a high-speed PM machine, caused by stator slotting, can produce substantial losses. A method is presented for calculating these losses, accounting for the true heteropolar nature of the problem. Harmonic waves are calculated by double FFT analysis of flux density data at the rotor surface, obtained from typically 60 magnetostatic solutions for different rotor positions. Electromagnetic losses for each harmonic are calculated using a 5-layer travelling current-sheet model. Results show that losses are strongly dependent on the sizes of airgap, magnet thickness, slot opening and slot pitch, and material properties.
715-16
Sharkh, Suleiman M Abu
7a6d4878-5419-44d0-80fb-be5b7cb4b03f
Harris, Martyn R
50b4d180-1d54-4633-8257-b498a425a0ea
Irenji, Neamat Taghizadeh
e553dadd-bd42-44c9-afbc-37a1b003e825
Sharkh, Suleiman M Abu
7a6d4878-5419-44d0-80fb-be5b7cb4b03f
Harris, Martyn R
50b4d180-1d54-4633-8257-b498a425a0ea
Irenji, Neamat Taghizadeh
e553dadd-bd42-44c9-afbc-37a1b003e825

Sharkh, Suleiman M Abu, Harris, Martyn R and Irenji, Neamat Taghizadeh (1997) Computation of No-Load Electromagnetic Rotor Losses in High-Speed. pp. 715-16 .

Record type: Conference or Workshop Item (Other)

Abstract

Travelling wave harmonics of flux density on the rotor surface of a high-speed PM machine, caused by stator slotting, can produce substantial losses. A method is presented for calculating these losses, accounting for the true heteropolar nature of the problem. Harmonic waves are calculated by double FFT analysis of flux density data at the rotor surface, obtained from typically 60 magnetostatic solutions for different rotor positions. Electromagnetic losses for each harmonic are calculated using a 5-layer travelling current-sheet model. Results show that losses are strongly dependent on the sizes of airgap, magnet thickness, slot opening and slot pitch, and material properties.

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More information

Published date: November 1997
Organisations: Electronics & Computer Science

Identifiers

Local EPrints ID: 254470
URI: http://eprints.soton.ac.uk/id/eprint/254470
PURE UUID: ab01bc3e-e4e0-4b1d-ac14-95fa6cb3621e

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Date deposited: 06 Apr 2001
Last modified: 10 Dec 2021 20:38

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Contributors

Author: Suleiman M Abu Sharkh
Author: Martyn R Harris
Author: Neamat Taghizadeh Irenji

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