Politecnico di Torino
Politecnico di Torino
Politecnico di Torino
Academic Year 2016/17
Electric traction
Master of science-level of the Bologna process in Mechanical Engineering - Torino
Teacher Status SSD Les Ex Lab Tut Years teaching
Boglietti Aldo ORARIO RICEVIMENTO PO ING-IND/32 39 21 0 0 4
SSD CFU Activities Area context
ING-IND/32 6 D - A scelta dello studente A scelta dello studente
Subject fundamentals
The subject presents the characteristics of the electric machines and drives widely adopted in the electric/hybrid propulsion for rail traction and road vehicles; some elements are also addressed to cable systems, ship propulsion and the perspective in the aircraft systems. For the different applications, the principal architectures and components (motors, power electronics converters and control systems) are discussed and analysed on the basis of the performance required to the propulsion system.
Expected learning outcomes
The objective of the subject is to provide the system knowledge to evaluate the issues related with the electric drives for the propulsion in the transport systems. The objective implies to develop in the student the capabilities to:
- know the applications and the design constraints for the electric drives in the different transports systems, in particular in the rail and road systems;
- know the principles of functional design and technical specification of electric drives; particular attention is paid to the interaction with the vehicle (mechanical coupling) and with the supply system;
- know the different technology options in connection with the required performances and duties;
- know the dynamic behavior of the electric drives and estimate the boundary conditions for their exploitation in the application framework.
Prerequisites / Assumed knowledge
The recommended curriculum includes at least the knowledge of Mechanics, Circuit theory and Electric Machines.
Introduction and historical notes in the use of the electric energy in transportations.
State of the art and trends, "more electric transports".
Elements on principal rotating electric machines.
Electric machines adjustment.
Components and power electronics converters (functional aspects).
Control systems and strategies for electric drives (principal characteristics).
Electric power supply systems.
Mechanical coupling systems.
Energy and thermal issues.
On-board integration issues.

On board energy storage/generation.
Traction systems for pure electric vehicles.
Charging equipments and infrastructures.
Hybrid traction architectures: series, parallel, series/parallel.
Interactions with the thermal engine.
Elements on aerospace applications: The More/All Electric Aircraft / More Electric Engine.

Electric networks for rail traction and substations for railway supplies.
Direct current traction systems with rheostatic adjustment.
Direct current traction systems with electronic adjustment.
Alternate current traction systems.
Multi-voltage locomotives.
Diesel-hybrid traction systems.
Texts, readings, handouts and other learning resources

Educational material used during lessons and applications shall be let available to the students.
For a better knowledge of the subjects:
- L. Guzzella, A. Sciarretta, 'Vehicle Propulsion Systems - Introduction to Modeling and Optimization', Springer-Verlag, Berlin Heidelberg, 2005;
- I. Husain, 'Electric and hybrid vehicles: design fundamentals', CRC Press, 2010;
- G. Vicuna, 'Organizzazione e tecnica ferroviaria', CIFI Ed, 1986.
Assessment and grading criteria
Oral exam on the actual programme of the subject.

Programma definitivo per l'A.A.2016/17

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Corso Duca degli Abruzzi, 24 - 10129 Torino, ITALY
WCAG 2.0 (Level AA)