Budapest University of Technology and Economics, Faculty of Electrical Engineering and Informatics

    címtáras azonosítással

    vissza a tantárgylistához   nyomtatható verzió    


    A tantárgy neve magyarul / Name of the subject in Hungarian: Elektromechanika

    Last updated: 2016. június 7.

    Budapest University of Technology and Economics
    Faculty of Electrical Engineering and Informatics
    Faculty of Mechanical Engineering 
    B.Sc. in Mechanical Engineering
    B.Sc. in Mechatronics
    Obligatory subject
    Course ID Semester Assessment Credit Tantárgyfélév
    VIAUA008   2/1/1/v 4  
    3. Course coordinator and department Dr. Hamar János Krisztián, Automatizálási és Alkalmazott Informatikai Tanszék
    Web page of the course
    4. Instructors




    Dr. János Hamar, PhD

    Associate Professor

    Department of Automation and Applied Informatics, Faculty of Electrical Engineering and Informatics

    Sándor Kerekes

    Honorary Associate Professor

    Department of Automation and Applied Informatics, Faculty of Electrical Engineering and Informatics

    5. Required knowledge

    Mathematics: Linear Algebra, Differential Equations

    Basics of Electrical Engineering 

    6. Pre-requisites
    TárgyEredmény("BMEVIAUA007","jegy",_) >=2 VAGY KépzésLétezik("2N-MG0") VAGY KépzésLétezik("2N-MM0") VAGY KépzésLétezik("2N-MW0") VAGY KépzésLétezik("2N-MT0")
    VAGY Training.Code=("2NAAG0RESZ")
    EgyenCsoportTagja("Brazil 2015-16-1_erk")

    A fenti forma a Neptun sajátja, ezen technikai okokból nem változtattunk.

    A kötelező előtanulmányi rendek grafikus formában itt láthatók.

    Obligatory: Basics of Electrical Engineering, BMEVIAU007
    7. Objectives, learning outcomes and obtained knowledge The material is based on solid physical foundation. It is selected and treated in order to understand and solve the problems met in practice by the non-electrical engineers as well. The most salient topic is lectromechanical conversion but overview of electric drives, transients, power electronics, electric networks are included as well. 
    8. Synopsis

    1-2 week: Transformer. Construction. Operation. Equivalent circuit. Phasor diagram. Operation modes: no-load; short circuit, parallel operation. Applications.

    2-3 week: Electromechanical Converters. Overview. Basic operation principle. Relation between power and size.

    4-5 week: Rotating magnetic field (RMF). Mechanically rotated MF. Electrically rotated MF. Induction machine. Construction. Operation. Slip. Torque-speed characteristic. Motoring, generating, operation. Equivalent circuit. Power, torque relations. Efficiency. Kloss-formula. Applications.

    6 week: Synchronous machine. Construction. Operation. Equivalent circuit. Phasor diagram. Torque-load angle relation. Motoring, generating operation. Operation in Power Plant.

    7-8 week: Direct Current machine. Operation principle. Mechanical rectification-commutator. Construction.  Induced voltage. Torque production. Motoring-generating operation. Excitation modes. Efficiency. Special machines: Servo-motors, step-motors, linear motors, brushless DC motors, tachogenerators, selsyns.

    9-10 week: Transient phenomena. Dynamic process in one and two energy-storage circuits with DC and AC inputs. Initial conditions. Behavior of autonom circuit and response for forced inputs. Roots in complex-plane. Pspice-program. Applications.

    11-12 week: Power electronics. Components. Electric switches. Rectification. AC-AC converters. DC-DC converters. Inverters: voltage and current inverters. Uni-and bidirectional power flow. One-two-four quadrant operation. Applications.

    13 week: AC and DC electric drives. Speed change by: rotor resistance, pole number, supply frequency. Starting methods change of rotating direction. Braking methods.

    14 week: Electric network. Power plant, grid, substation, consumers. Active, reactive power change. Electric are. Switches. Electric safety measures.

    The materials of practice and laboratory measurements are fitted to those of lectures. 

    9. Method of instruction Lectures, examples classes, homework, laboratories.
    10. Assessment

    a.) Lecturing interval:

    Requirements to complete the semester and to earn credit, mark:

    1. Completing the homework assignments and submitting them by dead-line

    2. Completing the 6 laboratory measurements. Only two of them can be postponed to the retake week.

    The laboratory measurements begin with written tests. If the test is unsuccessful, the laboratory measurement cannot be continued.


    b.) Examination interval:

    In the first part of the written examination 6 questions of lecture note: "Basic Questions - Electromechanics" have to be answered. Each correct answer is worth 2 points. The questions and answers are available on our homepage: In the second part of the examination theoretical and practical questions shall be answered and tasks shall be solved. The written examination lasts 110 minutes.


    The final marks are offered as follows:

    0-39     failed (1)

    40-54   satisfactory (2)

    55-69   average (3)

    71-84   good (4)

    85-100   excellent (5)

    Students earning 40 points or more have the possibility to improve their mark.

    11. Recaps
    Homework can be submitted till the end of the retake week. Additional fee applies.
    Maximum 2 laboratory measurements may be postponed to the retake week.
    12. Consultations Consultations are offered: examples classes, laboratories, visiting hours, individual appointments arranged on demand. 
    13. References, textbooks and resources
    E.Fitzgerald,Ch.Kingsley,Jr., S.D.Umans: Electric Machinery, Fourth Edition, McGraw-Hill, New York, 1992, ISBN 0-17-0707708-3
    H.Elschner, A.Möschwitzer: Einführung in die Elektrotechnik, Elektronik, VEB Verlag Technik, Berlin, 1987.
    S.J.Chapman Electric Machinery Fundamentals, McGraw-Hill, New York, 1985, ISBN 0-07-010662-2
    P.C.Kraause: Analysis of Electric Machinery, McGraw-Hill, ISBN 0-07-035436-7
    S.E.Lyshevski: Electromechanical Systems, Electric Machines and Applied Mechatronics, CRC Press, London, 2000, ISBN 0-8493-2275-8
    Richard C.Dorf: The Electrical Engineering, Handbook CRC Press, London, 1993, ISBN 0-8493-0185-8
    Ned Mohan, Tore M.Underland, William P.Robbins: Power Electronics, Converters, Applications and Design Second Edition, John Wiley & Sons, Inc., New York, 1995, ISBN 0-471-58408-8
    D.W. Novotny, T.A. Lipo: Vector Control and Dynamics of AC Drives, Clarendon Press, Oxford, 1997, ISBN 0 19 856439 2
    A. Veltman, D.W. J. Pulle, R.W. De Doncker: Fundamentals of Electrical Drives, Springer, 2007. ISBN 978-1-4020-5503-4
    Ch. Fraser: Integrated Electrical and Elektronic Engineering for Mechanical Engineers, J. Milne McGraw-Hill, New York 1994, ISBN 0-07-707973-6
    14. Required learning hours and assignment
    Contact hours42
    Learning for Lectures14
    Completing the project week 14
    Learning for Laboratories14
    Learning from books20
    Learning for examination16
    15. Syllabus prepared by




    Dr. István Nagy

    Member of H. Academy of Sciences

    Professor Emeritus

    Department of Automation and Applied Informatics, Faculty of Electrical Engineering and Informatics