COMPEL - The international journal for computation and mathematics in electrical and electronic engineering: Volume 22 Issue 4
Table of contents
Application of stochastic simulation in the optimisation process of hydroelectric generators
E. Schlemmer, W. Harb, J. Schoenauer, F. MuellerIn this paper, stochastic optimisation and risk estimation techniques are applied to the problem of hydroelectric generator design. Optimisation results from deterministic…
Eddy‐current computation on a one pole‐pitch model of a synchronous claw‐pole alternator
Christian Kaehler, Gerhard HennebergerThis paper deals with 3D finite‐element calculation of eddy currents in the claws of a claw‐pole alternator taking the rotational geometry movement into account. Two transient…
A closer view on inductance in switched reluctance motors
Irma Hajdarevic, Hansjörg KöflerSwitched reluctance motors are promising candidates for a wide variety of drive applications. The theoretical description of such motors is often reduced to the rather simple, but…
Spatial linearity of an unbalanced magnetic pull in induction motors during eccentric rotor motions
A. Tenhunen, T.P. Holopainen, A. ArkkioThere is an unbalanced magnetic pull between the rotor and stator of the cage induction motor when the rotor is not concentric with the stator. These forces depend on the position…
Calculation of eddy current losses and temperature rises at the stator end portion of hydro generators
St. Kunckel, G. Klaus, M. LieseThis paper deals with a calculation method of eddy current losses and temperature rises at the stator end teeth of hydro generators. It can be used for analysing and evaluating…
Comparison of two modeling methods for induction machine study: application to diagnosis
C. Delmotte‐Delforge, H. Hénao, G. Ekwe, P. Brochet, G‐A. CapolinoThis paper presents two modeling methods applied to induction machine study in order to construct a tool for diagnosis purpose. The first method is based on permeance networks…
Finite element modeling of the temperature distribution in the stator of a synchronous generator
Josef Schoenauer, Erwin Schlemmer, Franz MuellerIn this paper, we applied the finite element modeling to the stator temperature distribution of a hydroelectric generator. The electrical losses produce a temperature distribution…
Discrete‐time modeling of AC motors for high power AC drives control
S. Poullain, J.L. Thomas, A. BenchaibThis paper proposes a new discrete‐time formulation of state‐space model for voltage source inverter (VSI) fed AC motors, introducing the free evolution of the motor state and…
Design of a mass‐production low‐cost claw‐pole motor for an automotive application
R. Felicetti, I. RamesohlThis paper describes a thermal and electrical model, used at Robert Bosch GmbH for the design of an innovative motor for a water‐pump. In addition, it offers an example of a…
A magnetic network approach to the transient analysis of synchronous machines
M. Andriollo, T. Bertoncelli, A. Di GerlandoThe technique for the simulation of the dynamic behaviour of rotating machines presented in the paper is based on an equivalent circuit representation of the magnetic…
Numerical magnetic field analysis and signal processing for fault diagnostics of electrical machines
S. Pöyhönen, M. Negrea, P. Jover, A. Arkkio, H. HyötyniemiNumerical magnetic field analysis is used for predicting the performance of an induction motor and a slip‐ring generator having different faults implemented in their structure…
Thermal modeling and testing of a high‐speed axial‐flux permanent‐magnet machine
F. Sahin, A.J.A. VandenputThis paper gives an overview of the design, manufacturing and testing of a high‐speed (16,000 rpm and 30 kW) AFPM synchronous machine, which is mounted inside, and as an integral…
Current shapes leading to positive effects on acoustic noise of switched reluctance drives
M. Kaiserseder, J. Schmid, W. Amrhein, V. ScheefA torque ripple minimization technique for switched reluctance motors is shown in this paper. Precalculated current shapes are applied to reduce torque ripple and to raise the…
Vibrations of magnetic origin of switched reluctance motors
Lieven Vandevelde, Johan J.C. Gyselinck, Francis Bokose, Jan A.A. MelkebeekVibrations and acoustic noise are some of the fundamental problems in the design and exploitation of switched reluctance motors (SRMs). Adequate experimental and analysis methods…
Two‐dimensional harmonic balance finite element modelling of electrical machines taking motion into account
J. Gyselinck, P. Dular, L. Vandevelde, J. Melkebeek, A.M. Oliveira, P. Kuo‐PengAn original and easy‐to‐implement method to take into account movement (motion) in the 2D harmonic balance finite element modelling of electrical machines is presented. The global…
A general analytical model of electrical permanent magnet machine dedicated to optimal design
E. Fitan, F. Messine, B. NogaredeWhat is new in this work is the generic capabilities of the proposed analytical model of permanent magnet machines associated with a novel deterministic global optimization…
Modelling of electromagnetic losses in asynchronous machines
L. Dupré, M. De Wulf, D. Makaveev, V. Permiakov, A. Pulnikov, J. MelkebeekThis paper deals with the numerical modelling of electromagnetic losses in electrical machines, using electromagnetic field computations, combined with advanced material…
Staged modelling A methodology for developing real‐life electrical systems applied to the transient behaviour of a permanent magnet servo motor
F. Henrotte, I. Podoleanu, K. HameyerThis paper presents a methodology to achieve a global dynamic model of an electrical system that consists of a battery, an inverter, a permanent magnet servo motor and a turbine…
3D h‐ϕ finite element formulation for the computation of a linear transverse flux actuator
G. Deliége, F. Henrotte, H. Vande Sande, K. HameyerA finite element analysis of a permanent magnet transverse flux linear actuator is presented. In this application where we need a small model (for optimisation purposes) as well…
Constrained least‐squares method for the estimation of the electrical parameters of an induction motor
Maurizio Cirrincione, Marcello Pucci, Giansalvo Cirrincione, Gérard‐André CapolinoThis paper presents for the first time the analytical solution of the constrained minimization for the on‐line estimation of the electrical parameters of an induction motor. The…
Calculation of eddy current losses in metal parts of power transformers
Erich Schmidt, Peter Hamberger, Walter SeitlingerTo maintain quality, performance and competitiveness, the eddy current losses in metal parts of power transformers in the range of 50‐200 MVA are investigated in a more detailed…
Optimal design of high frequency induction motors with the aid of finite elements
Atanasi Jornet, Angel Orille, Alberto Pérez, Diego PérezThe motors for high‐speed operation fed by frequency converters produce, first, a high amount of hysteresis and eddy losses in both stator and rotor iron, and secondly a…
Analytic calculation of the voltage shape of salient pole synchronous generators including damper winding and saturation effects
Georg Traxler‐Samek, Alexander Schwery, Erich SchmidtA novel analytic method for determining the no‐load voltage shape of salient pole synchronous generators is presented. The algorithm takes into account the full influence of the…
Numerical modelling of electromagnetic process in electromechanical systems
Vyacheslav A. Kuznetsov, Pascal BrochetA general approach to the formation of magnetic equivalent circuit describing the magnetic process inside the electric machines is proposed. This formation is based on tooth…
A coupled electromagnetic‐mechanical‐acoustic model of a DC electric motor
Martin Furlan, Andrej Cernigoj, Miha BoltezarIn this article, we present an investigation into the sound radiation from a permanent‐magnet DC electric motor using the finite‐element (FE) and boundary‐element (BE) models. A…
Current distribution within multi strand windings for electrical machines with frequency converter supply
Oliver DrubelThe current distribution within multi strand windings is investigated for transient current and voltage supplies. The difference in losses between transient and sinusoidal…
ISSN:
0332-1649Online date, start – end:
1982Copyright Holder:
Emerald Publishing LimitedOpen Access:
hybridEditor:
- Prof Jan Sykulski