Programme of “Azionamenti Elettrici”:
“Electrical Drives”
• Code: I2L036
• Compulsory
• 2nd cycle in Electrical Engineering, 1st year, 2nd semester
Number of ECTS credits: 9 (workload is 225 hours; 1 credit = 25hours)
Teacher: Francesco Parasiliti Collazzo
1 Course objectives The goal of this course is to provide principles of theory and control of the main Electrical
Drives.
Topics of the module include:
• Introduction to adjustable speed drives.
• Steady state Electrical Machines models: DC Motors, Induction Motors,
Synchronous Motors.
• Stationary and rotating reference models.
• DC Motor speed control and multi-quadrant operation. Separately excited DC
Motors: armature voltage control, armature current control, field control.
• Induction Motor speed control: variable voltage, constant voltage/frequency
control, current control, flux weakening operation, vector control.
• Synchronous Motor, Permanent Magnet Motor, Reluctance Motor speed
vector control.
• DC Converters: rectifier and chopper.
Course content and • DC Motor Drives: single and multi-quadrant drives.
2
Learning outcomes (Dublin • AC Converter: voltage source inverter. Six-step inverter and PWM inverter,
descriptors) modulation techniques, current control.
• Speed control AC Motor Drives: voltage/frequency control and field-oriented
control.
• AC Motor operation with non-sinusoidal supply waveforms.
On successful completion of this module, the student should
- have knowledge and understanding of the theory and control of the main Electrical Drives
- understand and explain the physical mechanisms of the Electrical Drives and the
principles of the electrical motor speed control
- demonstrate skill and ability in the choice, design and operation of Electrical Drives and
their applications
- demonstrate capacity for reading and understand other texts on related topics.
3 Prerequisites and learning The student must know the contents of the course “Electrotechnics”, “Electrical Machines”
activities
Lectures and practical lab experiences, home work
Language: Italian
Ref. Text books:
4 Teaching methods Lectures Notes;
and language G. K. Dubey, Power Semiconductor Controlled Drives, Prentice-Hall International Editions;;
J.M.D. Murphy, F.G. Turnbull, Power Electronic Control of AC Motors, Pergamon Press; W.
Leonahrd, Control of Electrical Drives, Springer-Verlag; P. Vas, Vector Control of AC
Machines, Oxford Science Publications.
5 Assessment methods and oral exam
criteria