Publication in the Diário da República: Aviso n.º 11774/2016 - 27/09/2016
5 ECTS; 2º Ano, 1º Semestre, 67,50 TP , Cód. 626319.
Lecturer
- Carlos Alberto Farinha Ferreira (1)(2)
(1) Docente Responsável
(2) Docente que lecciona
Prerequisites
Not applicable.
Objectives
Provide the capabilities for chosing and operating of systems with actuators.
Program
1. Electrical machines: operating principles of electrical machines; the transformer; the synchronous machine; the asynchronous machine; DC motors (motor / generator: series, parallel, compound and of permanent magnet); other types of rotary machines (motors, brushless, coreless and step). Operation, constitution, characteristics, testing, start-up and reversal of the direction of operation.
2. Adaptation system of mechanical parameters: gearboxes, rotational motion to linear conversion, efficiency, needs in terms of operating quadrants of the mechanical variable for each application.
3. Non electromagnetic mechanical Actuators: piezoelectric, pneumatic, hydraulic, etc.
4. Non mechanical Actuators: light, acustic, electrical, thermal, etc.
5. Introduction to the power electronics and its use for the control of various types of actuators. Components: diodes, transistors, IGBTs, thyristors. linear operating systems and PWM types of commutated converters and their operating principle: AC-DC, DC-DC, DC-AC.
Evaluation Methodology
Written test: 60%. Laboratory practice: 40%.
Bibliography
- Palma, J. (2008). Accionamentos Electromecânicos de Velocidade Variável. Portugal: Fundação Calouste Gulbenkian
- D. Umans, . e Kingsley Jr., C. e Fitzgerald, A. (2003). Electric Machinery. -: McGraw-Hill
- Robbins, W. e Undeland, T. e Mohan, N. (2008). Power Electronics: Converters, Applications and Design. John Wiley & Sons. -: John Wiley & Sons
Teaching Method
Explanation of concepts, problem solving and practical realizations (laboratory).
Software used in class
Not applicable.
