2017/2018

2017/2018

DM270

ING-IND/32 (POWER ELECTRONIC CONVERTERS, ELECTRICAL MACHINES AND DRIVES)

DEPARTMENT OF ELECTRICAL,COMPUTER AND BIOMEDICAL ENGINEERING

ELECTRICAL ENGINEERING

PERCORSO COMUNE

1°

1st semester (02/10/2017 - 19/01/2018)

6

50 lesson hours

Italian

WRITTEN AND ORAL TEST

BENZI FRANCESCO (titolare) - 6 ECTS

Basics of electrotechnique and electrical machines.

The course aims at complementing the basics of electrical machines learned in the previous courses, with a generalized approach at the operation of the electrical machines. This includes a general method to calculate the inductances in mutual rotating electromechanical structures; the elementary machines and their models in different reference frame. The description of construction and operation principles of the synchronous machine, not included in the previous course, will complete the program.

Inductances - Inductance calculation methodology for electrical machines with rotating parts.
Magnetic fields in electrical machines - Spatial and temporal distribution of magnetic fields in rotating machines with simplified assumptions.
Electromagnetic torque calculation in rotating electric machines - Electric machine equations.
Equations of rotating machines with one or more concentrated windings. Transformation of the equations in different reference frames. Generalized electrical machine (general equations and torque calculation).
The synchronous machine (steady state operation as a generator and motor)
Complementary notions on the asynchronous machine.

Lectures (hours/year in lecture theatre): 40
Practical class (hours/year in lecture theatre): 10

The lectures notes are made available to the students through the Kiro platform. Also a number of numerical resolved exercise are available. G. Petrecca, E. Bassi, F. Benzi. La teoria unificata delle macchine elettriche rotanti.. CLUP, 1984.

Written exam at the end of the course, confirmed by a short discussion

Written exam at the end of the course, confirmed by a short discussion