Semianalytical modeling of squirrel-cage induction machines with consideration of iron permeability and eddy-currents using elementary subdomain technique
-
Published:2024-01-23
Issue:
Volume:
Page:
-
ISSN:0332-1649
-
Container-title:COMPEL - The international journal for computation and mathematics in electrical and electronic engineering
-
language:en
-
Short-container-title:COMPEL
Author:
Roubache Lazhar,Boughrara Kamel,Dubas Frédéric,Ladghem Chikouche Brahim,Ibtiouen Rachid
Abstract
Purpose
This paper aims to propose a semianalytical model of a squirrel-cage induction machine (SCIM), considering local magnetic saturation and eddy-currents induced in the rotor bars.
Design/methodology/approach
The regions of the rotor and stator are divided into elementary subdomains (E-SDs) characterized by general solutions at the first harmonic of the magneto-harmonic Maxwell’s equations. These E-SDs are connected in both directions (i.e., along the r- and θ-edges).
Findings
The calculation of the magnetic field has been validated for various values of slip and iron permeability. All electromagnetic quantities were compared with those obtained using a two-dimensional finite-element method. The semianalytical results are satisfactory compared with the numerical results, considering both the amplitude and waveform.
Originality/value
Expansion of the recent analytical model (E-SD technique) for the full prediction of the magnetic field in SCIMs, considering the local saturation effect and the eddy-currents induced in the rotor bars.
Subject
Applied Mathematics,Electrical and Electronic Engineering,Computational Theory and Mathematics,Computer Science Applications
Reference20 articles.
1. Model of the induction machine including saturation, Lille,2013
2. 2-D analytical prediction of eddy currents, circuit model parameters, and steady-state performances in solid rotor induction motors;IEEE Transactions on Magnetics,2014
3. An improved magnetic characterization method for highly permeable materials;IEEE Transactions on Magnetics,2006
4. A review of subdomain modeling techniques in electrical machines: performances and applications,2016
5. An improved 2-D subdomain model of squirrel-cage induction machine including winding and slotting harmonics at steady state;IEEE Transactions on Magnetics,2018