
Course unit
ELECTRICAL SCIENCE
IN19102562, A.A. 2019/20
Information concerning the students who enrolled in A.Y. 2018/19
ECTS: details
Type 
ScientificDisciplinary Sector 
Credits allocated 
Core courses 
INGIND/31 
Electrotechnics 
9.0 
Course unit organization
Period 
First semester 
Year 
2nd Year 
Teaching method 
frontal 
Type of hours 
Credits 
Teaching hours 
Hours of Individual study 
Shifts 
Lecture 
9.0 
72 
153.0 
No turn 
Examination board
Board 
From 
To 
Members of the board 
2 2019 
01/10/2019 
15/03/2021 
CHITARIN
GIUSEPPE
(Presidente)
SARTORI
EMANUELE
(Membro Effettivo)
MATTAVELLI
PAOLO
(Supplente)
OBOE
ROBERTO
(Supplente)
SONA
ALESSANDRO
(Supplente)
ZIGLIOTTO
MAURO
(Supplente)

1 2018 
01/10/2018 
15/03/2020 
CHITARIN
GIUSEPPE
(Presidente)
SARTORI
EMANUELE
(Membro Effettivo)
MATTAVELLI
PAOLO
(Supplente)
OBOE
ROBERTO
(Supplente)
SONA
ALESSANDRO
(Supplente)
ZIGLIOTTO
MAURO
(Supplente)

Prerequisites:

Basics of differential and integral calculus, complex numbers, vector operators: curl, gradient and divergence, general equations of electric and magnetic fields. 
Target skills and knowledge:

• Learn how to model real electric and electronic device using simplified electric circuits, learn the fundamental properties of electric circuits and the applicable methods for calculating of voltage, current and electric power.
• Apply such methods to numerically calculate voltage, current and electric power under direct current (DC) conditions, under alternative current (AC) conditions and under variable transient conditions in a real electric or electronic device.
• Learn the working principles and evaluate efficiency of electromagnetic devices, electric motors and generators used in electric power networks, including renewable power sources, energy storage and electric mobility.
• Learn how to simulate and design electric and electronic circuits using SPICE software (lab) 
Examination methods:

• written test: numerical solution of 2 application problems (2 hours) , 2 open questions concerning the calculation of voltage, current and power in electric circuits and the operating principles of electromagnetic devices (1 hour)
• oral examination (short discussion on the written test and one question on calculation of voltage, current and power in electric circuits and on the operating principles of electromagnetic devices ) 
Assessment criteria:

• written test: coherence of solution method, accuracy of numerical results, correctness of the description of the working principle.
• Oral examination: correctness of concepts, appropriateness of language, optional discussion on SPICE simulations. 
Course unit contents:

Fundamentals of electric circuits, electric current, electric voltage, amperemeter, voltmeter. Electric power and wattmeter. Kirchhoff's laws, power and energy balance. Linear and nonlinear 2terminal elements, . Resistors, Inductors, Capacitors, Diodes, ideal and real generators.
Steady state directcurrent (DC) circuits, series and parallel connection, voltage divider and current divider. D/Y transformation; Methods for linear DC circuit analysis: superposition of effects, Thevenin and Norton equivalent circuits.
Multiterminal elements, 2port elements, ideal transformer, ideal controlled voltage source and controlled current source. Equivalent circuit of a transistor based on a controlled current source. Circuit solution in presence of controlled voltage or current sources.
Capacitors, characteristic equations, series and parallel connection, charge and discharge process, electrostatic energy storage.
Magnetic induction. Magnetic field (FaradayNeumann. Ampère and Gauss) magnetic properties of materials, magnetic permeability, hysteresis loop.
Inductors, characteristic equations, series and parallel connection, charge and discharge process, magnetic energy storage. Mutual inductor, magnetic energy storage and energy transfer. Magnetic Circuits. Energy and force in magnetic circuits.
Sinusoidal alternativecurrent (AC) circuits: Steinmetz's transform for voltage and current, impedance, admittance. AC voltage and current measurements. Symbolic Kirchhoff's laws. Series and parallel connection. AC power: instantaneous, active, reactive, complex and apparent, power balance. Frequencydomain analysis of RLC circuits.
Fundamentals of 3phase power generation and distribution systems, phasetophase and phasetoneutral voltage, equivalent singlephase circuit, power measurement, reactive power compensation,
Rotating magnetic field, fundamentals of rotating electrical machines.
Power Transformers: operation principle, equivalent circuit, voltage drop, efficiency.
Dynamics of first and secondorder linear circuits, time evolution of voltage and current under transient conditions: timedomain analysis. Solution of circuit differential equations state variables and time constants. Frequencydomain analysis, transfer functions.
Computer simulation of circuits using SPICE software. 
Planned learning activities and teaching methods:

Classroom lecture using blackboard, slides are used only for specific content.
Numerical exercises in classroom using blackboard.
Lab for computerbased numerical simulation of electric circuits using SPICE software. 
Additional notes about suggested reading:

all the lecture slides, blackboard images and other learning support material, including some written test problems of the previous years (with numerical results) will be available on MOODLE 
Textbooks (and optional supplementary readings) 

G. Chitarin, F. Gnesotto, M. Guarnieri, A. Maschio, A. Stella,, Elettrotecnica 1  Principi. Bologna: Esculapio, 2017.

G. Chitarin, F. Gnesotto, M. Guarnieri, A. Maschio, A. Stella,, Elettrotecnica 1  Applicazioni. Bologna: Società Editrice Esculapio, 2018.

M. Bagatin, G. Chitarin, D. Desideri, F. Dughiero, F. Gnesotto, M. Guarnieri, A. Maschio, Esercizi di Elettrotecnica Reti elettriche. Bologna: Società Editrice Esculapio, 2013.

Innovative teaching methods: Teaching and learning strategies
 Laboratory
 Loading of files and pages (web pages, Moodle, ...)
Innovative teaching methods: Software or applications used
 Moodle (files, quizzes, workshops, ...)
Sustainable Development Goals (SDGs)

