# PRINCIPLES AND APPLICATIONS OF ELECTRICAL ENGINEERING cod. 1006132

2° year of course - First semester
Professor
Convertitori, macchine e azionamenti elettrici (ING-IND/32)
Field
Attività formative affini o integrative
Type of training activity
Related/supplementary
63 hours
of face-to-face activities
9 credits
hub: PARMA
course unit
in - - -

## Learning objectives

The course aims at providing basic knowledge and methods fior the analysis and synthesis of linear circuits in DC, AC and transient conditions. Part of the contents will be preparatory for later Electronics courses.

## Prerequisites

Students must be familiar with the concepts and methods treated during the first year of the course (Mathematical analysis, Analytical geometry, Physics).

## Course unit content

b) Direct current circuits analysis

d) Quasi-stationary electromagnetic field

e) Electric circuits with sinusoidal supply

f) Frequency domain electric circuits analysis

g) Electric circuits in dynamic conditions

## Full programme

Voltage and currents. Resistance. Voltage and current independent generators. Current controlled generators and voltage controlled generators. Power and efficiency. Voltage and current limits, rated values. Thermal sizing.

b) Direct current circuits analysis
Kirchhoff's principles. Mesh analysis, node analysis, superposition principle, Millman's theorem. Thevenin's theorem, Norton's theorem. Dependent generators.

Electric filed, capacitance, capacitors. Dielectrics and electrical insulation. Parasitic capacitances. Energy behaviour.

d) Quasi-stationary electromagnetic field
Magnetic field, diamagnetic, paramagnetic and ferromagnetic materials. Validity assumptions. Inductors and mutual inductance. Energy behaviour. Magnetic circuits. Lumped parameters. Stray inductances.

e) Electric circuits with sinusoidal supply
Phasors. Active and reactive power. Power factor correction. Introduction to polyphase systems and electric energy transmission. Maximum power transfer theorem.

f) Frequency domain electric circuits analysis
Frequency response of electric circuits. Transfer functions and Bode diagrams. Filters. Series and parallel resonance. Two ports electric networks. Impedance, admittance and hybrid parameters matrices.

g) Electric circuits in dynamic conditions
Analysis of first and second order electric transients in the time domain. State variables.

## Bibliography

Teacher's notes.
C. K. Alexander, M. N. O. Sadiku, ”Circuiti elettrici”, 4a ed., McGraw-Hill.
A. Canova, G. Gruosso, M. Repetto, "Elettrotecnica-Esercizi svolti", Esculapio-Progetto Leonardo.

## Teaching methods

Classroom lectures and exercises solved by the instructor.

## Assessment methods and criteria

Written and oral examination.
Students will have to demonstrate knowledge of the techniques for the time and frequency analysis and synthesis of electric circuits in DC, AC and transient conditions, including the energetic behavior.

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