Course detail

Electrical Controlled Drives

FEKT-NERPAcad. year: 2015/2016

Electrical drive as a system, useful and disturbance couplings of the drive with environs, methods to design of drives
D.C. controlled drives, review and classification. D.C. drives with thyristor converters, speed control, adaptive control, computer control. Combined control of the speed by armature and field control. Drives with a torque - reversation, two converters' systems with its control. Drives with brushless D.C. motors. Position controlled servodrives. Drives with permanent magnets synchronous motors, drives with induction motors, scalar and vector control, drives with stepping motors

Offered to foreign students

Of all faculties

Learning outcomes of the course unit

Passed student is qualified:
- to describe in details the structure of power circuits of controlled electrical drives
- to select a proper type of an electrical machine and to join it together with a proper type of supply semiconductor converter
- to compare behaviors individual types of controlled drives
- to design structure of control loops for cotrol of the current, of the speed and of the position


Student's necessary prerequisities are knowledge of mathematics (differential equations, Laplace transform), of control theory (transfer functions, stability of feedback systems, methods how to design contrllers), of electrical machines (principle, static characteristics) and of power electronics (thyristor controlled rectifiers and transistor switch mode converters).


Not applicable.

Recommended optional programme components

Not applicable.

Recommended or required reading

Caha, Černý: Elektrické pohony, SNTL, 1990
Leonhard: Control of Electrical Drives, Springer, 1996
Schröder: Elektrische Antriebe 1, Springer, 1994

Planned learning activities and teaching methods

Teaching methods depend on the type of course unit as specified in the article 7 of BUT Rules for Studies and Examinations.

Assesment methods and criteria linked to learning outcomes

Student obtains: max 15 points for numeric excersises, max. 15 points for laboratory excersises and max 70 points for final examination: written part (45 points) and oral part (25 points).

Language of instruction


Work placements

Not applicable.

Course curriculum

Electrical drive as a system
Kinematics and dynamics of drives
DC drives fed by thyristors, current control, speed control, adaptive control
DC drives with torque reversal, combined control by armature voltage and field weakening
Transistorized DC drives, one-quadrant and four-quadrant connection
Position control of servodrives, industry applications of position control
Brushless DC drives, connection and control structure
Induction motor drives, frequency converters, scalar control
Induction motor drives, vector control and direct torque control
Permanent magnet synchronous motor drives, structure of a power part and control
Vector control of servodrives with synchronou motorsl
Stepping motor drives and switch reluctance motor drives


The aim of the subject is to ecquaint students with electrical controlled drives, their structures, with methods of dimensionig of the power parts and with the design of control circuits.

Specification of controlled education, way of implementation and compensation for absences

Computer laboratory is mandatory
Elaborated numeric excesises are mandatory
Compensation of an absence at laboratory after lecturer's recommendatio

Classification of course in study plans

  • Programme EEKR-MN Master's

    branch MN-KAM , 1. year of study, summer semester, 6 credits, optional interdisciplinary
    branch MN-SVE , 1. year of study, summer semester, 6 credits, compulsory
    branch MN-EEN , 1. year of study, summer semester, 6 credits, optional interdisciplinary

Type of course unit



39 hours, optionally

Teacher / Lecturer

Exercise in computer lab

26 hours, compulsory

Teacher / Lecturer