
Course unit
PRINCIPLES OF ELECTRICAL SCIENCE (Ult. numero di matricola dispari)
IN02106727, A.A. 2019/20
Information concerning the students who enrolled in A.Y. 2018/19
Lecturers
No lecturer assigned to this course unit
ECTS: details
Type 
ScientificDisciplinary Sector 
Credits allocated 
Educational activities in elective or integrative disciplines 
INGIND/31 
Electrotechnics 
6.0 
Course unit organization
Period 
Second semester 
Year 
2nd Year 
Teaching method 
frontal 
Type of hours 
Credits 
Teaching hours 
Hours of Individual study 
Shifts 
Lecture 
6.0 
48 
102.0 
No turn 
Prerequisites:

Basic knowledge from mathematics and physics courses, in particular: laws of electromagnetism, differential and integral calculus, complex numbers, vector operators (div, grad, rot). 
Target skills and knowledge:

1 knowledge of the fundamental properties and methodologies for circuit analysis, and ability to model electric devices through simplified circuits and models;
2 skill in applying these methods to calculate voltages, currents and absorbed power on electric components of a circuit;
3 Learn the working principles and evaluate the operational efficiency of electric motors, of power conversion systems and of electric machines used for generating and distributing electric power, including renewable power sources, energy storage and electric mobility;
4 Learn the safety and protection features of the electric power networks and devices.
5 Select industrial electric power devices and to solve relevant management problems. 
Assessment criteria:

1 analytical ability and correctness in the approach to applied problems;
2 exactness of numerical results in applied exercises;
3 completeness of theoretical knowledge, and ability in discussing fundamental equations of electric science and models of electromechanical systems;
4 terminological correction and distinction in the description of electrical applications 
Course unit contents:

Fundamentals of electric circuits, electric current, electric voltage, amperemeter, voltmeter. Electric power and wattmeter. Kirchhoff's laws, energy balance. Linear and nonlinear 2terminal elements, multiterminal elements. Resistors, Inductors, Capacitors, Diodes, ideal and real generators.
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.
AC circuits: Steinmetz's transform for voltage and current, impedance, admittance. AC circuit measurements. Symbolic Kirchhoff's laws. Series and parallel connection. AC power: instantaneous, active, reactive, complex and apparent, power balance. Frequencydomain analysis of RLC circuits.
3phase systems, phasetophase and phasetoneutral voltage, equivalent singlephase circuit, power measurement, reactive power compensation,
Magnetic induction. Magnetic field (FaradayNeumann. AmpĂ¨re e Gauss) in the presence of ferromagnetic materials, hysteresis loop. Inductor, magnetic energy. Mutual inductor, magnetic energy. Magnetic Circuits. Energy and force in magnetic circuits. Rotating magnetic field.
Power Transformers: operation principle, equivalent circuit, voltage drop, efficiency.
Fundamentals of rotating electrical machines: asynchronous and synchronous machines. Equivalent circuit model, electric and mechanical power, torque, efficiency.
Basics of ACDC and DCAC electric power conversion.
Production of electric power by renewable and nonrenewable sources, energy storage, electric mobility, worldwide and in Italy.
Fundamentals of power distribution systems: fault protection and safety codes for power distribution systems. Direct and indirect contacts, magnetothermal and differential. protection. 
Planned learning activities and teaching methods:

Lecturestyle instruction (blackboard or powerpoint slides) will cover the whole course program. Lessons dedicated to applied problems and exercises (electrical circuits) will also be given. 
Additional notes about suggested reading:

All didactic material will be available on the moodle platform 
Textbooks (and optional supplementary readings) 


