DYNAMICS OF ELECTRICAL MACHINES AND DRIVES

Course objectives

The subject aims to guide the student in understanding the principles of operation of AC machines at variable speed. The module will provide methods to analyze the behaviour of AC drives both in steady state and during transients. Finally, it will give the student knowledge on how torque is controlled in these machines.

Channel 1
FABIO GIULII CAPPONI Lecturers' profile

Program - Frequency - Exams

Course program
1. Introduction on electric drives (1 credit) Transducers 2. DC Drives (3 credits) The operating principle of d.c. machines Mechanical and electrical characteristics Dynamic Model Analysis of the speed transient d.c. drives with switching converters (full-bridge converter) Current control for d.c. drives Introduction to speed control Flux weakening for d.c. drives 3. Permanent Magnet Synchronous Motor (PMSM) drives (2 credits) Classification Coordinate transformations: arbitrary reference frame Coordinate transformations: the rotating vector Brushless ac drives: mathematical model Brushless ac drives: control schemes Brushless ac drives: constant power speed range (field weakening)
Prerequisites
Basic knowledge of Control Systems
Books
1. W. Leonhard - “CONTROL OF ELECTRICAL DRIVES” - Ed. Springer-Verlag 2. P. C. Krause, O. Wasynczuk, S. D. Sudhoff - “ANALYSYS OF ELECTRIC MACHINERY” - Ed. IEEE Press 3. P. Pillay et alii - “PERFORMANCE AND DESIGN OF PERMANENT MAGNET AC MOTOR DRIVES” - IEEE Industry Applications Society Tutorial Course, 1991 4. D. W. Novotny, T. A. Lipo - “VECTOR CONTROL AND DYNAMICS OF AC DRIVES” - Ed. Oxford Science Publications
Frequency
Not mandatory, but highly recommended
Exam mode
The evaluation will be made through an oral colloquium, during which the student will demonstrate: - his knowledge of the topics of the subject, - his ability to present his speech in a logical and rigorous form, using appropriate terminology, - his capability to technically discuss and support his statements.
Lesson mode
Traditional face-to-face, with supporting computer simulations.
FABIO GIULII CAPPONI Lecturers' profile

Program - Frequency - Exams

Course program
1. Introduction on electric drives (1 credit) Transducers 2. DC Drives (3 credits) The operating principle of d.c. machines Mechanical and electrical characteristics Dynamic Model Analysis of the speed transient d.c. drives with switching converters (full-bridge converter) Current control for d.c. drives Introduction to speed control Flux weakening for d.c. drives 3. Permanent Magnet Synchronous Motor (PMSM) drives (2 credits) Classification Coordinate transformations: arbitrary reference frame Coordinate transformations: the rotating vector Brushless ac drives: mathematical model Brushless ac drives: control schemes Brushless ac drives: constant power speed range (field weakening)
Prerequisites
Basic knowledge of Control Systems
Books
1. W. Leonhard - “CONTROL OF ELECTRICAL DRIVES” - Ed. Springer-Verlag 2. P. C. Krause, O. Wasynczuk, S. D. Sudhoff - “ANALYSYS OF ELECTRIC MACHINERY” - Ed. IEEE Press 3. P. Pillay et alii - “PERFORMANCE AND DESIGN OF PERMANENT MAGNET AC MOTOR DRIVES” - IEEE Industry Applications Society Tutorial Course, 1991 4. D. W. Novotny, T. A. Lipo - “VECTOR CONTROL AND DYNAMICS OF AC DRIVES” - Ed. Oxford Science Publications
Frequency
Not mandatory, but highly recommended
Exam mode
The evaluation will be made through an oral colloquium, during which the student will demonstrate: - his knowledge of the topics of the subject, - his ability to present his speech in a logical and rigorous form, using appropriate terminology, - his capability to technically discuss and support his statements.
Lesson mode
Traditional face-to-face, with supporting computer simulations.
  • Lesson code1041454
  • Academic year2025/2026
  • CourseMechanical Engineering
  • CurriculumAutomazione New York University (percorso valido anche ai fini del conseguimento del doppio titolo italo-statunitense)
  • Year2nd year
  • Semester1st semester
  • SSDING-IND/32
  • CFU6