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Lecturer(s)
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Novák Miroslav, Ing. Ph.D.
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Kubín Jiří, Ing. Ph.D.
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Eichler Jakub, Ing. Ph.D.
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Krčmář Lukáš, Ing.
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Course content
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Lecture topics: 1. Actuators of mechatronic systems. Motion equation. General working and load characteristics, working point, intermittent duty cycle of load, start, braking and speed control on working characteristics. Sizing the drive. 2. Magnetic field actuators, principles, derivation of sliding and rotational motion. Magnetic circuits of transducers. Losses in the magnetic circuit. 3. Electromagnet. Basic static and dynamic properties. 4. Transformers. Principle and design. Equivalent circuit. Operating states of three-phase transformers, special transformers. 5. DC motor. Principle and design. Moment and speed of the DC motor. Separately excited, shunt motor and serial DC motors. Servo-motor. Starting, braking and speed control. 6. Synchronous machines. Principle and design. Synchronous motor with permanent magnets. Starting and speed control of the synchronous machine. Synchronous alternator, alternator synchronization. 7. Asynchronous motor. Principle and design. Squirrel cage motor. Equivalent circuit. Moment and torque characteristics. Starting, braking and speed control. 8. Stepping motors - the principle of motors with active and passive rotors. Torque characteristic. Starting, braking and speed control. Driving modes. 9. Single-phase asynchronous motor. Principle and design. Torque characteristic. 10. Universal (single) commutator single phase motor. Principle and design. Torque characteristic. 11. Electronically commutated motor. Principle, design, characteristics. 12. Linear motors with continuous motion. 13. Electromechanical transducers utilizing the properties of solid phase materials. Principle and used materials. Piezoelectric actuators and their applications. Ultrasonic piezoelectric motors. 14. Thermal appliances. Lighting technology - photometric quantities, artificial light sources. Practical lesson content: 1. Safety at work on electrical machines. Fundamentals of el. safety standards for machine construction. 2. Knowledge test of safety rules. Measurement of fan load characteristics. 3. Energy balance calculations el. machines. 4. Measurement of relay switch on and off. 5. Calculations of magnetic circuits el. machines. 6. Transformer measurement - no load, short circuit, calculation of transformer spare circuit parameters. 7. DC machine - motor, dynamo, measurement of machine characteristics. 8. Synchronous generator, measurement of characteristics in motor and generator mode, allocation of the generator to the network. 9. Asynchronous motor - no load measurement, short-circuit and torque characteristics measurement 10. Measurement of torque characteristic AM supplied with frequency inverter. 11. Asynchronous motor acceleration and deceleration measurement. 12. Single-phase asynchronous motor, single-phase AC commutator motor, measurement of working characteristics. 13. Stepping motors, programming of control unit. 14. Credit test.
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Learning activities and teaching methods
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Monological explanation (lecture, presentation,briefing), Self-study (text study, reading, problematic tasks, practical tasks, experiments, research, written assignments), Laboratory work, E-learning
- Class attendance
- 56 hours per semester
- Preparation for formative assessments
- 5 hours per semester
- Preparation for credit
- 10 hours per semester
- Preparation for exam
- 10 hours per semester
- Preparation for laboratory testing; outcome analysis
- 12 hours per semester
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Learning outcomes
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In the course the students will acquire theoretical knowledge and practical skills in the area of electromechanical power transducers and other main electrical appliances. Emphasis is placed on transducers using electromagnetic forces. Students will get acquainted with the basic characteristics of electrical machines.
The student will get an overview of the most used actuators and electromechanical transducers used in electrical engineering. They will get acquainted with theory, design methodology and practical skills with their involvement and measurement of basic characteristics.
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Prerequisites
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The knowledge of the circuit theory is required.
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Assessment methods and criteria
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Combined examination
Knowledge of the circuit theory.
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Recommended literature
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Bartoš, V. Elektrické stroje. Plzeň, 2006. ISBN 80-7043-444-9.
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Maixner, L. a kol. Mechatronika (Nosek, J., kap.4 - Akční členy mechatronických soustav). Computer Press, Brno, 2006. ISBN 8025112993.
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Nasar S.A., Boldea,I. Vector Cotrol of Ac Drives. CRC Press Inc., 1992. ISBN 978-0849344084.
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Nosek, J. Elektrotechnika a průmyslová elektronika. Příklady. VŠST, Liberec, 1991.
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Pavelka, J., Čeřovský, Z., Javůrek, J. Elektrické pohony. ČVUT, Praha, 2001.
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Rydlo, P. Řízení elektrických střídavých pohonů. TU v Liberci. 2006. ISBN 80-7372-117-1.
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Tkotz Klaus a kol. Fachkunde Elektrotechnik. 23. ed. Europa-Lehrmittel, 2006. ISBN 3808531576.
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Uhlíř, I. Elektrické stroje a pohony. Praha, 2007. ISBN 978-80-01-03730-0.
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Uchino, K. Ferroelectric Devices. Marcel Dekker, Inc., New York, 2000.
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Voženílek P. a kol. Elektromechanické měniče. Praha - ČVUT, 2007.
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