First cycle
degree courses
Second cycle
degree courses
Single cycle
degree courses
School of Engineering
Course unit
INP7078577, A.A. 2019/20

Information concerning the students who enrolled in A.Y. 2017/18

Information on the course unit
Degree course First cycle degree in
IN2376, Degree course structure A.Y. 2017/18, A.Y. 2019/20
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Number of ECTS credits allocated 9.0
Type of assessment Mark
Course unit English denomination ELECTRICAL MACHINES AND DRIVES
Department of reference Department of Management and 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 MAURO ZIGLIOTTO 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 First semester
Year 3rd Year
Teaching method frontal

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

Start of activities 23/09/2019
End of activities 18/01/2020
Show course schedule 2019/20 Reg.2017 course timetable

Examination board
Examination board not defined

Prerequisites: Physics and Electrotechnics courses (BSc level).
Target skills and knowledge: The course has the following expected skills:
- Knowledge of the principle of operation of the main electric motors;
- Understanding of the terminology and meaning of the electric drives parameters;
- Ability to identify the most suitable motors and control methods in relation to the required dynamics and precision;
- Ability to read and interpret catalogs for the choice of electric drives in mechatronic applications.
Examination methods: The verification of the expected skills is carried out by a written exam, including both open and closed questions, with multiple choice. The test is aimed at verifying the acquired knowledge. Given the applicative nature of the course, often the questions are similar to those of an oral exam, i.e. more oriented towards the discussion of a topic than the solution of an exercise.
Assessment criteria: The evaluation criteria used in the knowledge and skills verification are the following:
- Completeness of the theoretical knowledge acquired in the principles of torque generation in different electric motors;
- Ability to discuss the fundamental equations of electric machines and the related model block schematics;
- Level of autonomy acquired in interpreting catalog data and in selecting the right motor, according to project specifications;
- Absence of knowledge gaps in key concepts involved in the course.
- Ability in clear and accurate exposition of concepts.
Course unit contents: The specific contents of the course can be summarized as follows:
- Definition of electric machine. Functional block diagrams. Aspects of cost, efficiency, performance. Topologies of reluctance, electrodynamic, induction systems.
- Three-phase voltage inverter, square wave and sine-triangle PWM modulation. Space vector modulation.
- Principle of operation of the DC motor. Analysis of technical catalogs.
- Permanent magnet synchronous motor drives. Selection criteria, SPM and IPM motors. Example of selection of synchronous motor from the catalog, according to the project specifications. DC brushless motors.
- Asynchronous motors, operating principle. Voltage and torque equations at steady state. Start-up techniques. Scalar control, Volt / Hertz technique.
- Stepper motors (VR, PM and hybrid). Pull-in and pull-out curves. Converters for stepper motors. Step motor drive, a design example.
Planned learning activities and teaching methods: The course comprises the following activities:
- Theoretical study and classification of systems that implement the electromechanical energy conversion. In particular, examination of reluctance, electrodynamic and induction systems, as a basis for understanding torque production in electric motors;
- Classification of electric motors, based on their functional characteristics;
- Study of the structure and characteristics of DC and AC motors.
- Examples of a real design of an application, with the choice of the motor through the careful comparison of commercial alternatives.
Additional notes about suggested reading: The study material includes:
- Audio-visual (PC screen) digital handouts;
- complete Course notes written by the professor;
- articles from international journals
All material will be made available on the Moodle educational platform. The complete course notes will be available from the beginning of the course. The digital handouts will be provided as the lessons are given.
Textbooks (and optional supplementary readings)
  • A.E. Fitzgerald, C.Kinsley, A.Kusko, Macchine elettriche. Milano: Franco Angeli, 2015. ISBN: 8820422158 Cerca nel catalogo
  • G.Legnani, M.Tiboni, R.Adamini, Meccanica degli azionamenti - Azionamenti Elettrici.. Bologna: Esculapio - Progetto Leonardo, 2016. ISBN: 9788874889525 Cerca nel catalogo

Innovative teaching methods: Teaching and learning strategies
  • Case study
  • Questioning
  • Problem solving
  • Flipped classroom
  • Loading of files and pages (web pages, Moodle, ...)

Innovative teaching methods: Software or applications used
  • Moodle (files, quizzes, workshops, ...)
  • One Note (digital ink)
  • Kaltura (desktop video shooting, file loading on MyMedia Unipd)
  • Latex
  • Matlab

Sustainable Development Goals (SDGs)
Affordable and Clean Energy Industry, Innovation and Infrastructure