DYNAMIC ANALYSIS AND CONTROL OF AC MACHINES (6 Credits) 1. Introduction on electric drives (1 credit) Transducers 2. DC Drives (1 credit) Armature voltage and excitation flux regulation Dynamic model of DC machines DC drive control schemes Synthesis of the current regulator Flux weakening control 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) 4. Induction motor (IM) drives (2 credits) Operating principle of the IM Dynamic model of the IM Direct and indirect vector control: steady state analysis Transient analysis of IM under vector control Indirect vector control schemes Direct vector control schemes Flux observers CONTROL OF ELECTROMECHANICAL SYSTEMS (3 Credits) 1. Speed control Basic structure of speed-controlled systems 2. The speed controller with proportional action Open-loop and closed-loop transfer functions Load rejection Variable reference tracking Frictional load 3. The speed controller with proportional and integral (PI) action Open-loop and closed-loop transfer functions Load rejection Step response PI speed controller with relocated proportional action Variable reference tracking Feedforward compensation 4. PI speed controller with delays in torque actuation Delays in torque actuation Current controllers Tuning of PI controllers 5. Digital speed control Discrete-time implementation of speed controllers Anti-windup mechanism

DYNAMIC ANALYSIS AND CONTROL OF AC MACHINES 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 CONTROL OF ELECTROMECHANICAL SYSTEMS S. N. Vukosavic. Digital Control of Electrical Drives. Springer, 2007