Course detail

Electrical Servodrives

FSI-GES Acad. year: 2020/2021 Summer semester

The subject provides students with the knowledge of basic problems of electric servodrives and their role in driving production machines and equipment. It concerns with defining basic requirements regarding static and dynamic characteristics of servomechanisms, explaning principles of activities of the most important components of electric servo mechanisms, methodology of the design of the most frequently used feedback circuits (position loop, speed feedback, current feedback, position servomechanism with subordinated current and speed loop, dynamic submission of position loop, communication between numeric control system and machine drives), and the description of the interaction with the inertial load at servomechanisms.

Language of instruction

Czech

Number of ECTS credits

4

Supervisor

Ing. Rostislav Huzlík, Ph.D.

Department

Institute of Production Machines, Systems and Robotics

Learning outcomes of the course unit

The subject of Electrical Servodrives enables students to acquire knowledge needed for the design and optimal setting of production machines and equipment drives in compliance with technical documentation of the drives producer of, control systems and other necessary components. Students will also gain practical skills needed for servicing and diagnostics of simple faults of electric servomechanisms.

Prerequisites

Fundamentals of dynamics mechanisms.
Fundamentals of theory of linear control systems.
Fundamental of sensors position.
Velocity and current characteristics.
Mathematical models of electrical machines.

Planned learning activities and teaching methods

The course is taught through lectures explaining the basic principles and theory of the discipline.
According to the possibility of teaching can be organized lectures for students by practitioners and excursions to companies focused on activities related to the course content.

Assesment methods and criteria linked to learning outcomes

Evaluation of the course consists of exam and credit.
Credit is awarded for the elaboration of the submitted assignment.
The examination is combined, consists of an oral and a written part.

Aims

The aim of the subject is to provide students with the information on the current status and possibilities provided by the electric drives engineering for application in production machines and equipment. The task of the subject is to reach basic knowledge on such a level, so as the students are able to apply the above stated equipment and their components in their profession and to get orientation in the wide market offer of individual producers.

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

The subject contains only lectures. Missed lectures are not compensated.

The study programmes with the given course

Programme M2I-P: Mechanical Engineering, Master's
branch M-VSR: Production Machines, Systems and Robots, compulsory-optional

Type of course unit

 

Lecture

26 hours, optionally

Teacher / Lecturer

doc. Ing., Dipl.-Ing Michal Holub, Ph.D.
Ing. Rostislav Huzlík, Ph.D.
Ing. Tomáš Marada, Ph.D.

Syllabus

1. Regulators, application of linear regulation circuit basics in electric servomechanisms.
2. The methodology of servo drives designing, basic static and dynamic characteristics and requirements regarding servo drives of operation machines.
3. Types of servomechanisms, Speed and Current feedback.
4. Simple position loop, Position servomechanism with subordinated current and speed loop.
5.Dynamic submission of position loop, criteria of drives quality.
6. Rules of servodrives regulators tuning
7.Control of drives with DC and EC motors, stepper motor
8.Control of drives with synchronous and asynchronous motors.
9. Position control – interpolation, accelerating curves
10. Nonlinearity in servodrives, compensation of parasitic parameters
11. Drives with synchronized motors.
12. Characteristics of servodrives control system
13. Advance method for control (state regulator etc.).

Computer-assisted exercise

26 hours, compulsory

Teacher / Lecturer

Ing. Tomáš Marada, Ph.D.

Syllabus

1. Possibilities of system description using transfer functions
2. Design and simulation of PID controller for general application
3. Design and simulation of PID controller for general application
4. Simulation of electric drive components in Simulink
5. Simulation of electric drive components in Simulink with libraries (Simscape)
6. Simulation of electric drive components in Simulink with libraries – electromechanical systems
7. Simulation of DC motor servodrive control.
8. Simulation of servodrive control with synchronous motor.
9. Simulation of servodrives with interpolation and accelerating curves.
10. Practical demonstration of DC drive control.
12. Practical demonstration of AC drive control.
12. Simulation of drive control with asynchronous motor.
13. Credit.