Volume 61 Issue 2 (2011) - Годишник на ТУ - София - Технически ...

A DC electromagnetic actuators with double E-shaped core is investigated with theproposed approach. The magnetic field model of the investigated electromagnetic actuatoris built. The heating model is created. The couple magnetic-heating problem isformulated. The finite element method is applied for modelling of electromagneticand heating processes and for determination of different characteristics as electromagneticforce, temperature distributions, coil inductance, magnetic flux density distributionsetc. Both field problems are coupled with Matlab/Simulink circuit modelinterfacing with Octave/Lua. Simulink-Octave interface is realized. Octave-Femm interfaceis made by Lua-scrip file.Method is suitable for accurate electrical drives investigations, optimization and designactivities.5. AcknowledgmentPart of this research is supported by the National Science Fund of the Ministry of Educationand Science of Bulgaria under Contract “D002-157/2008”.REFERENCES[1] Zhou P., Fu W., Lin D., Stanton S., Cendes Z., Longya Xu, (2002), NumericalModeling of Electrical Machines and Its Application, Industry ApplicationsConference, 37th IAS Annual Meeting, 2002, Vol.3, pp. 1936–1942.[2] Di Barba P., A. Savini and S. Wiak, Field models in electricity and magnetism,Springer, 2008.[3] Yatchev I., (2003), Coupled field problems in electrical apparatus, Facta Universitatis.Series: Mechanics, Automatic Control and Robotics, Vol.3, No15, 2003,pp. 1089–1101.[4] Terzova A., Katsarski K., Kashukeev K., Mateev V., Marinova I., (2010), Computermodelling and optimization of electromagnets in education on electricalapparatus. Proceedings of the 20th International PhD Seminar on ComputationalElectromagnetics and Optimization in Electrical Engineering - CEMOEE 2010,September 10-13, Sofia, Bulgaria, 2010, pp. 154-157.[5] Wiak S., A. Krawczyk and I. Doležel, Intelligent computer techniques in appliedelectromagnetics, Springer-Verlag, 2008.[6] Di Barba P., Multiobjective shape design in electricity and magnetism, Springer,2010.[7] Alexandrov A., Computer aided design of electrical apparatus, Avangard-Prima, 2004 (in Bulgarian).[8] Meeker D., Finite element method magnetics, Version 4.2, User’s manual, 2009.[9] Meeker D., Finite element method magnetics: Octave/Femm, Version 1.2, User’smanual, 2009.[10] Matlab Inc, The Language of Technical Computing, MATLAB GraphicsReference, 2006.121