Identification of Demagnetization Faults in Axial Flux Permanent Magnet Synchronous Machines Using an Inverse Problem Coupled With an Analytical Model

Autor:	Ahmed Mohamed Abouelyazied Abdallh, Peter Sergeant, Luc Dupré, Jan De Bisschop
Rok vydání:	2014
Předmět:	Physics Magnetization Nuclear magnetic resonance Three-phase Magnet Demagnetizing field Waveform Mechanics Permanent magnet synchronous generator Electrical and Electronic Engineering Inverse problem Finite element method Electronic Optical and Magnetic Materials
Zdroj:	Ghent University Academic Bibliography
ISSN:	1941-0069 0018-9464
DOI:	10.1109/tmag.2014.2316851
Popis:	This paper presents an analytical method for permanent magnet demagnetization detection in an axial flux permanent magnet synchronous machine. First, a forward model is built to calculate the three phase terminal voltages with inputs of three phase currents, the geometry of the machine, and the electromagnetic properties of the machine. To model the demagnetization fault, the scalar potential equation is solved. The magnetization waveform is a square wave corrected with magnetization factors that represent the individual magnetization of every magnet. Second, the forward model is inverted so that the magnetization factors are computed out of the three phase currents and the three phase terminal voltages. The forward model is validated with experimental data and finite element simulations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::406fc61bbe032f8e04f1340ca667019d https://doi.org/10.1109/tmag.2014.2316851 Zobrazit plný text záznamu