- Docente: Claudio Rossi
- Credits: 6
- SSD: ING-IND/32
- Language: English
- Teaching Mode: Traditional lectures
- Campus: Bologna
- Corso: Second cycle degree programme (LM) in Advanced Automotive Engineering (cod. 9239)
Learning outcomes
Know and understand the fundamentals of static and electromechanical conversion systems.
Learn the configuration of basic power electronic conversion systems, of main electrical machines, either direct current (DC) or alternate current (AC) and of electric drives used in automotive sector.
Learn topology, control principles, input and output characteristics of main DC and AC electric drives.
Develop the ability to model power electronic converters, control system, electrical machines, and full drive systems with reference to application for torque and speed control.
Develop the ability to represent an electric drive in terms of energetic conversion system, for the integration in a multiphisic model of a vehicle.
Course contents
Fundamentals of electromechanical conversion systems and fundamentals of electrical machines.
Revision of electromagnetic fields and EM field equations. Revision on ferromagnetic materials and permanent magnets. Current transformer.
DC machines
Topology and types of DC machines.
Fundamental equations and output mechanical characteristic. Steady state performance. Drives on one, two, four quadrants. Cooling of the machine. Control schemes.
Brushless machines with trapezoidal back emf. Drive topology. Principle of operation and control. Output mechanical characteristics. Performance limitation.
Brushless machine with sinusoidal back emf.
Drive topology. Structure of the machine with surface and internal mount magnets.
Principle of static conversion.
DC/DC basic converter topology. One, two and four quadrant configuration. PWM modulation. Current regulator.
Readings/Bibliography
For studying:
The didactic material distributed by the teacher: copy of slides, files and description of the used numerical models
For personal deepening of contents:
Stefanos Manias “Power Electronics and Motor Drive System”. Academic Press ISBN: 0128117982
Teaching methods
The course includes: theoretical lectures made with the aid of multimedia systems. The didactic material is uploaded before each lecture
Training and laboratory activities related to the realization of numerical model of selected energetic conversion systems and of a simple electric DC drive suitable for automotive application.Assessment methods
The final exam bases on an oral test for verifying the student knowledge on subjects discussed during classes and student competences on modelling of simple DC electric drives.
Teaching tools
Desktop computers for the use of the Matlab Simulink suite.
Office hours
See the website of Claudio Rossi