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Servodrives of Low Power

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Course Unit Code430-4206/01
Number of ECTS Credits Allocated4 ECTS credits
Type of Course Unit *Optional
Level of Course Unit *Second Cycle
Year of Study *Second Year
Semester when the Course Unit is deliveredWinter Semester
Mode of DeliveryFace-to-face
Language of InstructionCzech
Prerequisites and Co-Requisites Course succeeds to compulsory courses of previous semester
Name of Lecturer(s)Personal IDName
STE37Ing. Libor Štěpanec, Ph.D.
KUH37doc. Ing. Martin Kuchař, Ph.D.
Summary
The course focuses on the basic functions of servo drives (DC motor actuators, electronically commutated motors, stepper motors, AC servo motors, reluctance motor actuators etc.). The course content is based on knowledge of power electronics, mechatronic systems, electric controlled drives and control theory.
Learning Outcomes of the Course Unit
The student will get an overview enabling a good orientation in the principles of operation of servo drives, the ability to independently analyse and synthesize parts of servo drives and be able to apply the acquired knowledge in the practical design of servo drives.
Course Contents
Lectures:
Definition of an electric control drive. The importance of control drives.
Means for controlling electric drives. Controllers, sensors.
Position control of drives. Linear and time-optimal control.
Drives with DC servo motors. Four-quadrant pulse converters for DC servo motors, their control.
Control structures with DC servo motors. Static and dynamic characteristics of DC servo motor drives.
Servo drives with electronically commutated motors (ECM). Principles of ECM operation. Converters for supplying power to these motors, their control, control structures of ECM drives. Static and dynamic characteristics.
Drives with AC servo motors of synchronous type - with permanent magnets and reluctance. Division, principle of operation. Converters for power supply of these servomotors, their control.
Control structures of drives with AC servomotors of synchronous type. Static and dynamic characteristics.
Drives with AC induction servomotors, principle of operation. Converters for supplying power to induction servomotors, their control.
Control structures of drives with AC induction servomotors. Static and dynamic characteristics.
Servo drives with stepper motors. Division, principle of operation. Converters for supplying these motors, their control.
Control structures. Control of stepper motor drives. Static and dynamic characteristics of stepper motor drives.
Servo drives with linear motors. Principles of operation, inverters for supplying these motors, their control, control structures.
Development trends of servo drives.

Exercise:
Safety training for work in laboratories, introduction to the content of the exercise and credit conditions. Solution of examples from the problems presented in the lectures.

Labs:
DC position servo drive with MAXON motor.
Servo drive with electronically commutated (EC) motor (BLDC).

Projects:
Protocols of laboratory exercises.
Recommended or Required Reading
Required Reading:
Boldea, I., Nasar, S. A.: Electric Drives. Third Edition, CRC Press, 2016. ISBN 978-1-4987-4820-9.
Neborák, I., Kuchař, M.: Servopohony malých výkonů. Učební texty pro kombinované a distanční studium. VŠB-TU Ostrava, 2017.
Skalický J.: Elektrické servopohony. VUT v Brně 1999. ISBN 80-214-1978-4.
Boldea, I., Nasar, S. A.: Electric Drives. Third Edition, CRC Press, 2016. ISBN 978-1-4987-4820-9.
Recommended Reading:
Weidauer, J., Messer, R.: Electrical Drives: Principles, Planning, Applications, Solutions. Publicis MCD Verlag, 2014. ISBN: 978-3-89578-434-7.
Miller, T. J. E.: Switched Reluctance Motors and their Control. Magna Physics Publications and Oxford University Press, 1993.
Takashi, K., Sugawara, A.: Stepping motors and their microprocessor controls. Oxford Science Publications 1994.
Weidauer, J., Messer, R.: Electrical Drives: Principles, Planning, Applications, Solutions. Publicis MCD Verlag, 2014. ISBN: 978-3-89578-434-7.
Flajtingr, J.-Kule, L.: Elektrické pohony se střídavými motory. ZČU Plzeň 2002. ISBN 80-7082-919-2.
Javůrek, J.: Regulace moderních elektrických pohonů. Grada Publishing 2003. ISBN 80-247-0507-9
Planned learning activities and teaching methods
Lectures, Tutorials, Project work
Assesment methods and criteria
Task TitleTask TypeMaximum Number of Points
(Act. for Subtasks)
Minimum Number of Points for Task Passing
Exercises evaluation and ExaminationCredit and Examination100 (100)51
        Exercises evaluationCredit40 (40)20
                Test 1Written test10 5
                Test 2Written test10 5
                Laboratorní úlohyLaboratory work20 10
        ExaminationExamination60 (60)20
                Písemná zkouškaWritten examination30 10
                Ústní zkouškaOral examination30 10