Department of Energy Technology Engineering

The course aims to equip students with the necessary knowledge to understand the electromechanical energy conversion sector, carried out with the three-phase asynchronous motors, DC machines and certain other types of electrical machines. The aim is to gain knowledge about the structure, function, control and use of these types of electrical machines in energy systems.

Course Description

Theory: Asynchronous (induction) three-phase motors, structure and types. Mathematical analysis, equivalent circuit, variables, parameters, operation, stability, performance, checks, starting, braking efficiency and energy saving. Use of motors in electromechanical energy conversion, applications with special reference to high-powered systems. Asynchronous three-phase generator, control, applications. DC machines, structure and types. Generators, mathematical analysis, equivalent circuits, variable, operation, regulation, control, applications. Special type of generators. Motors, mathematical analysis, equivalent circuits, variable, operation, behaviour, stability, control, starting, braking, efficiency and energy saving. Special type of motors. Use of motors in electromechanical energy conversion applications with special reference to electric transport. Operation and energy savings. Other types of motors. Single-phase AC motors. Single phase induction motors with an auxiliary winding. Single phase shaded pole motors. Repulsive motors. Magnetic resistance motors. Magnetic hysteresis motors. Synchronous motors permanent magnets. Stepper motors. Linear motors. Servomotors. Operation, mathematical analysis, and control. Special types of low-power motors. Use of motors in electromechanical energy conversion applications, small or great power, accompanied where appropriate by automatic control systems.
Laboratory: The laboratory includes experiments of various electrical machines types under different circumstances.

Expected Course Outcome

At the end of the course, students will be able to
• To know the structure and operation of such machines.
• To be aware of the electrical machines behavior under various conditions.
• To know the capabilities and the fields of application in energy units or systems.

Bibliography

Greek:

Stephen J. Chapman, “Ηλεκτρικές Μηχανές DC – AC”, Εκδόσεις McGraw-Hill / A.Τζιόλα, 2001.
C. I. Hubert, “Ηλεκτρικές Μηχανές”, Pearson Education, Inc./ Ι:Ν, Αθήνα, 2008.
Γ. Ξυπτεράς, “Ηλεκτρικές Μηχανές, Μηχανές Συνεχούς Ρεύματος και Ασύγχρονες Μηχανές”, Τόμος Ι, Εκδόσεις Ζήτη, 1993.
Ι. Α.Τεγόπουλος, “Ηλεκτρικές Μηχανές”, Μέρος Β, Εκδόσεις Συμμετρία, 1986.
Α. Ν. Σαφάκας, “Ηλεκτρικές Μηχανές Β ”, Πάτρα 1984.

English:

Juha, Pyrhonen, Tapani, Jokinen, Valeria, Hrabovcova, “Design of Rotating Electrical Machines”, John Wiley and Sons Ltd, 2009.
Jacek F., Gieras, “Advancements in Electric Machines”, Springer, 2008.
Charles Arthur, Gross, “Electric Machines”, Taylor & Francis Ltd, 2006.
R. Miller, M. R. Miller, “Electric Motors”, Wiley Publishing, Inc., 2004.
Stephen J. Chapman, “Electric Machinery Fundamentals”, McGraw-Hill, 2003.
Charles I. Hubert, “Electric Machines: Theory, Operation, Applications, Adjustment, and Control” (2nd Edition), Prentice Hall, 2001.
William H., Yeadon, Alan W., Yeadon, “Handbook of Small Electric Motors”, McGraw-Hill Education, 2001.
Bhag S. Guru, Huseyin R. Hiziroglu, “Electric Machinery and Transformers”, Oxford University Press, 2001.
Chee - Mun Ong, “Dynamic Simulation of Electric Machinery”, Prentice Hall Ptr, 1998.
E. S., Hamdi, “Design of Small Electrical Machines”, John Wiley and Sons Ltd, 1994.
Takashi Kenjo, “Stepping Motors and their Microprocessor Controls”, Oxford Science Publications, 1992.
P.C. Sen, “Principles of Electric Machines and Power Electronics", John Wiley & Sons, 1989.
S. A. Nasar, “Handbook of Electric Machines”, McGraw - Hill Book Company, 1987.