OVERVIEW

This subject aims to provide basic elements of electrical circuit theory (resistive elements and networks, transient and steady-state analysis of elementary first-order and second-order linear circuits, analysis of some circuit properties in periodical steady-state conditions) and to apply them to examples. To this end, concepts coming from Mathematics, Physics and Geometry are applied to circuits and some basic mathematical and scientific principles are introduced.

AIMS AND CONTENT

LEARNING OUTCOMES

The aim of the course is to provide a preliminary knowledge of electrical engineering and is aimed at the specialist in non-electrical engineering sectors, transmitting the essential knowledge of the theory of electric and magnetic fields and electrical networks.

AIMS AND LEARNING OUTCOMES

It is expected that at the end of this subject the student will be able to analyze linear time-invariant resistive circuits and first-order and second-order dynamical circuits (transitory and steady-state analysis), by correctly writing topological equations and descriptive equations. During the lessons a set of tools are proposed; when dealing with a specific problem, the students have to decide what subset of tools can be (or has to be) used to solve it. This capacity of solving non-trivial problems is one of the main elements of the scientific cultural baggage of an engineer.

PREREQUISITES

Basic concepts of mathematics and physics: derivatives and integrals of real functions; elementary linear differential equations; vectors, matrices, systems of algebraic equations; complex numbers; power and energy.

TEACHING METHODS

About 60 classroom hours. During other practice lessons (with elective participation), further exercises and examples are proposed to reinforce learning.

SYLLABUS/CONTENT

Fundamentals of circuit theory (circuit elements; models; elementary electrical variables; graphs and circuits; Kirchhoff's laws; Tellegen's theorem).

Two-terminal resistive elements and elementary circuits (significant two-terminal elements; Thévenin-Norton models; concept of electrical power; series and parallel connections).

Linear resistive two-ports and elementary circuits (six representations and properties; significant two-port elements; cascade, series and parallel connections).

General resistive circuits (Tableau analysis; superposition and substitution theorems; Thévenin-Norton theorems).

Elementary dynamical circuits (significant circuit elements; concept of state; transient and stationary steady-state solutions of first-order circuits with various sources: constant, piecewise-constant, impulsive; stability; generalizations to second- and higher-order circuits).

Sinusoidal steady-state analysis (phasors and sinusoidal solutions; phasor formulations of circuit equations; impedance and admittance of two-terminal elements; sinusoidal steady-state solutions; active, reactive and complex powers).

Periodical steady-state analysis (analysis of circuits with many sinusoidal inputs; periodical signals and Fourier series; mean value; RMS value theorem).

RECOMMENDED READING/BIBLIOGRAPHY

-           M. Parodi, M. Storace, Linear and Nonlinear Circuits: Basic & Advanced Concepts, Vol. 1, Lecture Notes in Electrical Engineering, Springer, 2017, ISBN: 978-3-319-61234-8 (ebook) or 978-3-319-61233-1 (hardcover), doi: 10.1007/978-3-319-61234-8.

-           L.O. Chua, C.A. Desoer, E.S. Kuh, Circuiti lineari e non lineari, Jackson, Milano, 1991.

-           C.K. Alexander, M.N.O. Sadiku, Circuiti elettrici (3A edizione), MacGraw-Hill, Milano, 2008.

-           M. de Magistris, G. Miano, Circuiti, Springer, Milano, 2007.

-           G. Biorci, Fondamenti di elettrotecnica: circuiti, UTET, Torino, 1984.

-           V. Daniele, A. Liberatore, S. Manetti, D. Graglia, Elettrotecnica, Monduzzi, Bologna, 1994.

-           M. Repetto, S. Leva, Elettrotecnica, CittàStudi, Torino, 2014.

TEACHERS AND EXAM BOARD

Exam Board

MATTEO LODI (President)

MARCO STORACE

EMANUELA SASSO (President Substitute)

VERONICA UMANITA' (President Substitute)

LESSONS

LESSONS START

Regular (see the calendar at the website https://www.politecnica.unige.it/index.php/didattica-e-studenti/orario-e-calendario-delle-lezioni)

Class schedule

The timetable for this course is available here: Portale EasyAcademy

EXAMS

EXAM DESCRIPTION

Written (max. score 17) + oral (max score 15).

For the attending students only, two further partial written examinations are proposed, with a total score of 32: if the total score is sufficient, it can be registered without any additional oral examination; otherwise, an oral examination (max. score 30) is mandatory and the final score is the mean of written and oral examination.

“Distance” mode (only if necessary, according to national and university rules):

[10:11] Marco Storace

“Distance” mode (only if the face-to-face mode is prohibited):

Preliminary assessment test (max. score 7), with threshold score of about 3 (it can change based on the difficulty level of the test) + written assessment (max. score 10) + oral assessment (max. score 15). For being admitted to the oral examination, the student must have min. score 5 (preliminary test + written assessment). The final score is given by test + written + oral.

ASSESSMENT METHODS

During the lessons, many exercises are proposed to the students for self-examination and later solved during the optional practice lessons. The learning results are assessed through the exams, as described in the above section. The learning outcomes are reached as far as the student demonstrates his/her ability to properly use the conceptual tools proposed during the lessons, in order to analyze different kinds of circuits working under different operating conditions (see Section "Aims and learning outcomes").

Exam schedule