AIMS AND CONTENT

LEARNING OUTCOMES

The purpose of teaching is to learn the fundamental methods of rapidly variable electromagnetic field analysis using a differential approach, and then to move on to the acquisition of issues related to industrial electromagnetic compatibility with reference to design and measurement method issues.

AIMS AND LEARNING OUTCOMES

Initially a first preparatory part is carried out aimed at acquiring the cultural mastery of the physical-mathematical tools necessary for the in-depth study of electromagnetic fields.

The second part of the course has the aim of deepening the issues related to industrial electromagnetic compatibility with particular reference to both design with electromagnetic compatibility constraints and problems relating to measurement methods. Ten hours of the course are dedicated to the verticalized cyber-physical theme on electrical networks. The course includes laboratory exercises.

TEACHING METHODS

Theoretical lessons integrated with examples and exercises.

Oral exam on the two parts of the program, lasting a total of about 45 minutes.

SYLLABUS/CONTENT

1. The stationary electric field: the electrostatic potential, valid relationships in the points of discontinuity, examples of field evaluation, Green's reciprocity theorem and superposition of effects, principle of electric images, applications of Green's theorem, method of electric images.
2. The stationary magnetic field: the vector potential, the magnetic scalar potential, the reduced scalar potential, the principle of superposition of effects, the method of magnetic images, application examples
3. Rapidly changing fields: plane waves, wave equation, propagation in a lossless medium, lossless media, lossy media, sinusoidal plane waves, Poynting vector in sinusoidal regime, conductors and dielectrics, plane wave polarization, normal incidence of a sinusoidal plane wave on plane walls, standing wave ratio.
4. Transmission lines: transmission line equations, distributed parameter circuits, parameters per unit length, time domain solution (transients), infinite line with constant supply voltage, finite line with constant supply voltage closed on a resistive load , short-circuited line, open-circuited line, charged transmission line discharged through a resistance R, transmission line with pulsed voltage generator, transmission line with capacitive load, transmission line with sinusoidal voltage generator.
5. Antennas: retarded potentials and Lorentz gauge, dipole antennas, near field and far field, electric dipole, magnetic dipole, antenna gain, directivity, effective aperture, antenna factor, broadband antennas for measurements: biconical and log-periodic

Second part:

1. The electromagnetic environment: generation and suppression of transients, presence of non-linear elements;
2. Shields: Shielding efficiency for near field and far field, multilayer shields, magnetic shields, shields with apertures.
3. Electrostatic discharges: Origin of electrostatic discharges, effects of electrostatic discharges, design techniques to mitigate the effects of electrostatic discharges.
4. Electromagnetically compatible system design: Bonds: signal grounds and grounds, common point and multipoint bonding, parasitic ground paths - System configuration: system enclosures, power filter placement, internal cable routing, and placement of connectors, decoupling of subsystems;
5. Test and measurement techniques: Low and high frequency emission measurements Conducted disturbances - Radiated disturbances - Immunity tests;
6. Biological effects of electromagnetic fields.
7. Introduction to cybersecurity
8. Cybersecurity in electrical systems: risk scenarios.
9. Control networks for electrical distribution and smart microgrids: their protection
10. Cybersecurity of industrial control systems: evolution of SCADA systems, security requirements, Purdue model
11. Defense in depth
12. The National Cyber Security Perimeter.

RECOMMENDED READING/BIBLIOGRAPHY

• P. Girdinio: “ourse handouts”;
• M. A. Plonus: “Applied Electromagnetics”, McGraw-Hill international  Editions, 1988;
• S. Ramo, J. R. Whinnery, T. Van Duzen:  “Campi e onde nell'elettronica  per le comunicazioni”, Franco Angeli editore, 1984;
• C. R. Paul: “Compatibilità  elettromagnetica”, Hoepli editore;
• Audone Bruno:  “Compatibilità  Elettromagnetica”, McG[aw-Hill, 1993.

TEACHERS AND EXAM BOARD

Exam Board

PAOLA GIRDINIO (President)

MASSIMO BRIGNONE

PAOLO MOLFINO

MARIO NERVI

MANSUETO ROSSI (President Substitute)

LESSONS

LESSONS START

https://corsi.unige.it/8731/p/studenti-orario

EXAMS

EXAM DESCRIPTION

Oral exam on the two parts of the program, lasting a total of about 45 minutes

ASSESSMENT METHODS

Learning skills are verified through specific questions concerning the topics of the course. If the student answers at least 60% of the questions correctly, the exam is considered passed.

Exam schedule