Course detail

Electrical Controlled Drives

FEKT-NERPAcad. year: 2018/2019

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

Language of instruction

English

Number of ECTS credits

6

Mode of study

Not applicable.

Guarantor

Ing. Dalibor Červinka, Ph.D.

Department

Department of Power Electrical and Electronic Engineering (UVEE)

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

Prerequisites

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).

Co-requisites

Not applicable.

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).

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

Work placements

Not applicable.

Aims

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

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

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

Recommended reading

Not applicable.

Classification of course in study plans

  • Programme EECC-MN Master's

    branch MN-EEN , 1 year of study, summer semester, elective interdisciplinary
    branch MN-KAM , 1 year of study, summer semester, elective interdisciplinary
    branch MN-SVE , 1 year of study, summer semester, compulsory

Type of course unit

 

Lecture

39 hod., optionally

Teacher / Lecturer

Ing. Dalibor Červinka, Ph.D.

Syllabus

Current control of thyristor supplied D.C drives
Speed control by armature voltage, analogue and digital
Speed control by field, combined control
Drives with torque-reversation
Servodrives with transistor converters
Principles of control of switch-mode converters, power circuit connection
Control circuits of transistor converters
Brushless D.C. motor, principle, construction
Transistor converter for brushless D.C. motor
Control structures of a drive with a brushless D.C. motor
Position controlled servodrives
Principles of position control, position sensors, control structures
Multimotor drives and hoist drives

Exercise in computer lab

26 hod., compulsory

Teacher / Lecturer

Ing. Dalibor Červinka, Ph.D.

Syllabus

Mathematical model of a D.C. motor
Design and simulation of a current control loop
Simulation of a current control loop with a discontinuopus current
Design of a speed controller and simulation of a speed closed loop with a subordinate current closed loop
Simulation of a speed control with a current limit
Design of a digital speed controller
Simulation of a D.C. drive controlled by field
Simulation of a drive with a combined control in the armature and in the field
Model of a brushless D.C. motor