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    Control of Electric Drives

    A tantárgy neve magyarul / Name of the subject in Hungarian: Villamos hajtások szabályozása

    Last updated: 2015. február 26.

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

    BSc Electrical Engineering

    Sustainable Power Engineering Specialisation

    Electrical Machines and Drives sub-specialisation 
    Course ID Semester Assessment Credit Tantárgyfélév
    VIVEAC04 6 2/1/0/v 4  
    3. Course coordinator and department Dr. Veszprémi Károly,
    4. Instructors Dr.Károly Veszprémi Professor, Department of Electric Power Engineering
    5. Required knowledge Elektrotechnics, power engineering, electrical machines
    6. Pre-requisites
    Kötelező:
    Szakirany("AVINvillgephajt", _) VAGY
    Szakirany("VIABV-SUSTEN", _)

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

    A kötelező előtanulmányi rend az adott szak honlapján és képzési programjában található.

    7. Objectives, learning outcomes and obtained knowledge

    To learn the control methods of general and special purpose electric drives. Supporting their drive task specific optimal selection.

    8. Synopsis

    Drive specific and task specific drive controls. Subordinated control structure. Transient equations and block schemes of DC machines.

    Line-commutated converter-fed DC drives: block schemes for continuous and discontinuous conduction, circulating current and non-circulating current control for ¼ quadrant and 2/4 quadrant operation. Adaptive current control. Control in field-weakening. 4/4 quadrant DC chopper-fed DC drive with hysteresis and PWM modulator based current control.

    Park-vector transient equations of the 3-phase synchronous and induction machines in natural and arbitrary coordinate systems. Equivalent circuits for fluxes and voltages. Torque expressions wit Park-vectors.

    Properties of the field-oriented controlled cage rotor induction machine with voltage-source and current-source supply. Dynamic and energy-saving operation. Direct and indirect rotor flux control. Machine models to provide the rotor flux and speed.

    Voltage source inverter-fed (VSI) cage rotor induction machine with field oriented control: hysteresis and PWM modulator based control. Direct torque and flux control.

    Operation of the double-fed induction machine, its field oriented control.

    VSI type grid-side converter: grid-oriented current vector control.

    Current source inverter-fed induction motor drive: field oriented control in traditional and PWM operation.

    Converter-fed synchronous machine. Optimal control of the machine-side converter, controlling from the shaft and the flux. Step-motor control.

    Permanent magnet sinusoidal field synchronous machine drive: normal and field-weakening operation. VSI-fed hysteresis and PWM modulator based current vector control.

    Switched reluctance machine drive. Torque calculation, self controlled current control. Control of step motor drives.

    Subordinated speed and position control. Selection of control types, their optimal design.

    Practical applications of controlled drives: flywheel energy storage drive, electrical drives of vehicles, wind turbines, starting of gas-turbine-synchronous generator set.

    Calculation practices: Optimal controller setting. Per-unit systems.

     

    9. Method of instruction 3 lectures, 1 practice per week
    10. Assessment

    Writing 4 short-test. Two of them must be passed. 

    In the exam period: written exam with possible oral exam improvement 

    11. Recaps No repeated test.
    12. Consultations At time and date agreed by the lecturers. 
    13. References, textbooks and resources

    Lecture notes from the webpage of the department.

    14. Required learning hours and assignment

    Contact hours

    56

    Preparation for contact hours

    18

    Preparation for the midterm

    16

    Learning at home

     

    Preparation for the measurements

     

    Homework assignments

    0

    Preparation for the exam

    30

    Total workload

    120
    15. Syllabus prepared by

    Dr.Károly Veszprémi Professor, Department of Electric Power Engineering

    Dr.István Schmidt Professor, Department of Electric Power Engineering