Czech

Not applicable.

Learning outcomes BEPB
Student:
- He is able describe mathematical background of the common torque – velocity characteristics of the drivetrain systems in dependence on absolute value of the velocity and also in dependence on operational quadrant.
- He can recalculate drivetrain inertia on the side of the motor shaft.
- He is able to create frequency characteristic from voltage and Newton´s second law equations. He is able to build a model of DC motor according to mentioned equations.
- He is able to draw and explain principles of all possible variations of the power parts of the DC/DC inverter intended for motor supply.
- He knows how to build mathematical models of the DC/DC inverters and all related sensors.
- He perfectly understands the principles of cascade regulation structure of the DC drivetrain and he is able to describe all inner loops.
- He can calculate current and velocity regulators for DC drivetrain according to specialized “Optimal module methods”.
- He knows how to calculate “bode characteristics” of the desired value and fault signal.
- He is able to describe principles of the drivetrain with asynchronous motors from user point of view. He is able to describe principle of velocity control of the asynchronous motor.
- He is able to draw power diagram of pules inerter for asynchronous motor. He is able to explain principles of scalar velocity control.
- He knows phenomena of the asynchronous motor de-excitations. He is able to explain areas of the constant torque and power of the motor.
- He is able to identified dissipations presented in electrical drivetrain. He is able to design the electrical drivetrain with help of methods assuming effective values of torques (currents) or average values of dissipations.
- He is able to choose suitable type of motor and inverter for typical industrial and traction applications.
Computer and laboratory lessons outcomes
- Student can create project in program Matlab/Simulink and he is able to handle its basic library functions and functional blocs.
- He is able to simulate Newton´s second law principles of the mechanical system
- He is able to create Simulink model of the DC motor with external field excitation of with permanent magnet.
- He is able to create Simulink model of current loop of the DC motor with inverter
- He is able to create model of the velocity closed loop with inner current loop.
- He is able to create simplified model of the position loop.
- According to simulations result of the electric drive operation cycle he is able to defined dissipation and design the main power parts of the drivetrain (motor + inverter) according to these dissipations.
- He is able to realize current and velocity regulators (designed via “Optimal module methods”) via analog circuits (operational amplifiers).
- He is able to analyze dissipations presented in drivetrain with synch

The subject knowledge on the secondary school level is required.
Student has to able to:
- explain general principles of the electric machines.
- compute in complex domain.
- apply differential equations of the electromechanical systems in time and Laplace domain.
- handle the software MATLAB SIMULINK on basic level
- prove that he is qualified to handle with electrical equipment according to defined rules.

Not applicable.

The course is taught through lectures explaining the basic principles and theory of the discipline. Exercises are focused on practical topics presented in lectures. Teaching methods depend on the type of course unit as specified in the article 7 of BUT Rules for Studies and Examinations.

1. Types of control drives, its structure, working quadrants, concepts of control and regulation.

2. Mechanical characteristics of driving and loading torque

3. Methods of reduction of static and dynamic forces and torques

4. Mechanics of drives, motion equation

5. DC motor, types, static characteristics, dynamic mathematical model

6. Transistor converter as a dynamic element from the control theory point of view

7. Sensors of electrical and non-electrical quantities in electric drives

8. Cascade control in electric drives, principle, structure, stability

9. Methods of current and speed control loops design, their comparison.

10. Drive losses, dimensioning, equivalent methods

11. Drives with asynchronous machines, equivalent scheme, static characteristic

12. Speed control of AM, frequency converters, soft starts

13. Drives with PMSM, types of motors and its control algorithms

 

Not applicable.

Attendance at practical training is obligatory.

Not applicable.

Not applicable.

Bose, B.,K a j.: Power Electronics and Variable Frequency Drives, , 0
Caha, Z., Černý, M.: Elektrické pohony SNTL Praha, 1990
Kubík, Z. a kol. : Teorie automatického řízení I., , 0
O. Kelly: Performance and Control of Electrical Machines, , 0
Pavelka, J., Čeřovský, Z., Javůrek, J.: Elektrické pohony, skripta ČVUT Praha, 1996

Accarnley,P.: Stepping Motors -a quide to modern theory and practice . IEE Control Engineering Series 19,1984.
Stemme,O.,Wolf,.: Principles and properties of Highly Dynamic DC Miniature Motors. Interelectric AG,1994.
T.Kenjo.,A.Sugawara .: Stepping motors and their microprocessor controls. Second edition.Clarendon press,Oxford 2000.
Ueha,Tomikawa, Kurosawa,Nakamura.:Ultrasonic motors - Theory and Applications.
W.H.Yeadon,A.W.Yeadon.:Handbook of Small Electric Motors. McGraw Hill, 2004
www.maxonmotor.com
www.minimotor.ch