Programme

Part 1 Hardware design of static power converters
General design criteria for static power converters. Analysis of the main DC/DC, AC/DC, and DC/AC topologies. Ideal and non-ideal converter models. Filter-component sizing according to current- and voltage-ripple specifications. Power semiconductor selection and calculation of conduction, switching, and reverse-recovery losses. Calculation of average and RMS currents. Thermal design and cooling-system selection. Selection of power capacitors and design of inductors. PWM techniques, dead time, and third-harmonic injection. Modelling, simulation, and experimental verification using MATLAB/Simulink and hardware-in-the-loop systems.
Part 2 Dynamic modelling and control design
Dynamic modelling of buck, boost, buck-boost, and three-phase converters using state-space equations. Derivation of averaged and small-signal models and the PWM modulator model. abc-dq0 transformations and modelling of three-phase converters in the rotating reference frame. Transfer functions, output impedance, Bode diagrams, resonance, and quality factor. Loop gain, sensitivity functions, stability, and phase margin. Design of P, PI, PD, and PID controllers in the continuous-time and discrete-time domains. Closed-loop control of DC/DC and three-phase AC/DC and DC/AC converters. Implementation and validation using MATLAB/Simulink and hardware-in-the-loop systems.

Core Documentation

In addition to the lecture notes provided by the teacher
Reference Books
 R.W. Erickson, D. Maksimovic: Fundamentals of Power Electronics, Kluwer Academic Publisher,2000.
 S. Buso, P. Mattavelli: Digital Control in Power Electronics, Morgan & Claypool Publishers, 2006
 N. Mohan, T.M. Undeland, W.P. Robbins: Power Electronics, Converters, Applications, and Design, John Wiley & Sons

Reference Bibliography

“Power Electronic System Design, Linking Differential Equations, Linear Algebra, and Implicit Functions”, Keng Wu “Power Electronic Converters Modeling and Control with Case Studies”, Seddik Bacha , Iulian Munteanu , Antoneta Iuliana Bratcu “Control of Power Electronic Converters and Systems”, Frede Blaabjerg

Type of delivery of the course

Class lessons. Moreover, exercises and simulations will be useful for the topics that will be illustrated during the course. Matlab/Simulink and National Instruments LabVIEW software will be used during class. Finally, hardware-in-the-loop simulator and reduced scale demo kit will be used to highlight some topics.

Attendance

Regular attendance at lectures and practical sessions is strongly recommended, given the application-oriented nature of the course and the close integration of theoretical content, simulation activities, and experimental work.

Type of evaluation

The final assessment consists of an oral examination covering both the theoretical and methodological topics presented during the lectures and the projects completed throughout the academic year. The examination is intended to assess the student’s understanding of the operating principles of static power converters, the ability to apply the modelling and design methodologies introduced in the course, and the ability to critically analyse and justify the adopted design choices. The final evaluation will take into account the accuracy and completeness of the answers, the appropriate use of technical terminology, the ability to connect theoretical concepts with practical design applications, and the degree of autonomy demonstrated in addressing analysis and component-sizing problems.