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.