A time-stepped 2D-3D finite element method for induction motors with skewed slots modeling

Dziwniel, P.; Piriou, F.; Ducreux, Jean‐Pierre; Thomas, Pierre

doi:10.1109/20.767180

Cited by 26 publications

(6 citation statements)

References 9 publications

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“…Owing to the reduction in the complexity of computation, it is highly desirable that a 2D approach should be extended to study the motor with skewed rotor bars. The methods which use extended 2D model, include multi-slice techniques (Piriou and Razek, 1990a;Boualem and Piriou, 1998;Tenhunen and Arkkio, 2001;Gyselinck et al, 2001), and invariance hypotheses (Dziwniel et al, 1999). In the multi-slice method, the rotor is divided into n number of sections (slices) taken at different axial positions.…”

Section: Rotating Machinesmentioning

confidence: 99%

Applications of coupled field formulations to electrical machinery

Kumbhar

Kulkarni

Escarela‐Perez

et al. 2007

COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

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Purpose -This paper aims to give a perspective about the variety of techniques which are available and are being further developed in the area of coupled field formulations, with selective bibliography and practical examples, to help postgraduate students, researchers and designers working in design or analysis of electrical machinery. Design/methodology/approach -This paper reviews the recent trends in coupled field formulations. The use of these formulations for designing and non-destructive testing of electrical machinery is described, followed by their classifications, solutions and applications. Their advantages and shortcomings are discussed. Findings -The paper gives an overview of research, development and applications of coupled field formulations for electrical machinery based on more than 160 references. All landmark papers are classified. Practical engineering case studies are given which illustrate wide applicability of coupled field formulations. Research limitations/implications -Problems which continue to pose challenges to researchers are enumerated and the advantages of using the coupled-field formulation are pointed out. Practical implications -This paper gives a detailed description of the application of the coupled field formulation method to the analysis of problems that are present in different electrical machines. Examples of analysis of generators and transformers with this formulation are presented. The application examples give guidelines for its use in other analyses. Originality/value -The coupled-field formulation is used in the analysis of rotational machines and transformers where reference data are available and comparisons with other methods are performed and the advantages are justified. This paper serves as a guide for the ongoing research on coupled problems in electrical machinery.

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Section: Rotating Machinesmentioning

confidence: 99%

Applications of coupled field formulations to electrical machinery

Kumbhar

Kulkarni

Escarela‐Perez

et al. 2007

COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

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“…If, furthermore, the flux paths are in the orthogonal plane to the rotor axis, a 2D FEM-model can be applied. For special 3D geometry effects such as skewing 2D models can be applied as well by interconnecting several 2D models (Boualem and Piriou, 1998;Dziwniel et al, 2000;Dziwniel et al, 1999;Piriou and Razek, 1990;Williamson et al, 1990;Williamson et al, 1995;Gyselinck et al, 2001;Ho and Fu, 1997;de Oliveira et al, 2004). In general, all the other cases require 3D models.…”

Section: Electromagnetic Field Computationmentioning

confidence: 99%

Electromagnetically excited audible noise – evaluation and optimization of electrical machines by numerical simulation

Schlensok¹,

Schmuelling²,

Giet³

et al. 2007

COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

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PurposeDisturbing vibrations and noise of electrical machines are gaining impact. The paper aims to focus on the necessity of estimating the electromagnetic, structure‐dynamical, and acoustic behaviour of the machine during designing and before proto‐typing.Design/methodology/approachAn adequate tool is numerical simulation applying the finite‐element method (FEM) and the boundary‐element method (BEM) allowing for the structured analysis and evaluation of audible noise also caused by manufacturing tolerances.FindingsThe simulated results show good accordance to measurement results. The methods and simulation tools allow the analysis and evaluation of every type of energy converter with respect to its electromagnetic, structure‐dynamical and acoustic behaviour.Originality/valueThe methods developed and proved can be applied to any electromagnetic device in general.

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“…The design of the brake as well as the evaluation of the equivalent circuit parameters can be obtained by using finite element techniques [2,3]. However, the optimization of the rotor geometry may require laborious and expensive numerical schemes especially when 3D configuration should be considered [4,5].…”

Section: Introductionmentioning

confidence: 99%