First cycle
degree courses
Second cycle
degree courses
Single cycle
degree courses
School of Engineering
Course unit
INP3051727, A.A. 2018/19

Information concerning the students who enrolled in A.Y. 2018/19

Information on the course unit
Degree course Second cycle degree in
IN1979, Degree course structure A.Y. 2014/15, A.Y. 2018/19
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Number of ECTS credits allocated 9.0
Type of assessment Mark
Website of the academic structure
Department of reference Department of Industrial Engineering
E-Learning website
Mandatory attendance No
Language of instruction Italian
Single Course unit The Course unit can be attended under the option Single Course unit attendance
Optional Course unit The Course unit can be chosen as Optional Course unit

Teacher in charge ANDREA TORTELLA ING-IND/32

ECTS: details
Type Scientific-Disciplinary Sector Credits allocated
Core courses ING-IND/32 Electrical Convertors, Machines and Switches 9.0

Course unit organization
Period Second semester
Year 1st Year
Teaching method frontal

Type of hours Credits Teaching
Hours of
Individual study
Lecture 9.0 72 153.0 No turn

Start of activities 25/02/2019
End of activities 14/06/2019
Show course schedule 2019/20 Reg.2014 course timetable

Examination board
Board From To Members of the board
6 A.A. 2019/2020 01/10/2019 30/11/2020 TORTELLA ANDREA (Presidente)
ANDRIOLLO MAURO (Membro Effettivo)
5 A.A. 2018/19 01/10/2018 30/11/2019 TORTELLA ANDREA (Presidente)
ANDRIOLLO MAURO (Membro Effettivo)

Prerequisites: Operating principles of AC electrical machines. Main architectures and control aspects of DC/AC, AC/DC and DC/DC power electronic conversion. Fundamentals of control theory.
Target skills and knowledge: Presentation and discussion of the electrical architectures including electrical generators, power converters and energy storage for renewable energy sources. Ability to derive the formulations describing the steady-state and dynamic operation of electrical generators, both at fixed and variable speed. Knowledge of the storage systems parameters and their variation range according to the adopted technology. Software modeling and analysis of electrical generatots and power converters of typical renewable generation systems.
Examination methods: Oral examination regarding the discussion on a report related to the laboratory simulation exercise and two open questions to check the candidate knowledge about the main course topics. One question will be focused on the electrical generators. Two calls will be scheduled for each session, during which the examination date will be arranged.
Assessment criteria: The main evaluation will concerna the ability to present and discuss technical solutions and methodologies for the performance analysis of single devices (generator, power converter, storage systems) and of the whole plant as well. The following aspects will be checked in detail:
- the knowledge of the operating performances useful to address the more suitable application field for the given technology;
- the ability to describe the circuit models and the related techniques for the analysis/solution;
- the ability to implement and analyze of basic plant models or models of single electronic/electromagnetic devices by a numerical simulation code
Course unit contents: 1) Introduction (0.5 CFU)
Main renewable energy sources and conversion principles. Electrical generation and power conversione architectures. Power control with the electrical grid.
2) Power converters for renewable sources (1 CFU)
Multi-pulse rectifiers. Voltage source multilevel inverters. Examples of application.
3) Electrical generators (4 CFU)
Squirrel cage and doubly fed induction generators. Permanent magnet generators. Single phase generators. Linear generators.
4) Electrical energy storage systems (2 CFU)
Main storage parameters. Main storage technologies (pumped hydro, compressed air, batteries, supercaps and flywheels).
5) Wind generation (0.5 CFU)
Physical characterization of the wind energy conversion process. Power characteristic and energy yield. Horizontal and vertical axis wind turbines. Typical ratings for small to large wind generators. Fixed and variable speed wind generators.
6) Laboratory activity (1 CFU)
Simulation of generation/conversion systems by educational software packages (Matlab/Simulink, Ansys/Maxwell)
Planned learning activities and teaching methods: Classroom lectures based on slides preliminarly provided to the students. Laboratory activities concerning the simulation of basic generation schemes by an educational software package. Possible arrangement of a technical seminar or visit involving recognized companies operating in the renewable energy sector.
Additional notes about suggested reading: Lecture slides and supplementary technical papers available at the course Moodle website
Textbooks (and optional supplementary readings)
  • M. Andriollo, G. Martinelli, A. Morini, A. Tortella, Macchine elettriche rotanti. Teoria ed esercizi per i corsi in ingegneria. Bologna: Esculapio, 2016. I edizione Cerca nel catalogo
  • F.A. Farret, M. Godoy Simoes, Integration of Alternative Sources of Energy. --: Wiley, 2006. Cerca nel catalogo

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, ...)
  • One Note (digital ink)
  • Matlab

Sustainable Development Goals (SDGs)
Affordable and Clean Energy