73924 - Power Electronic Circuits M

Learning outcomes

The goal of the course is to provide supplements of linear and non-linear electric circuits with special emphasis towards power electronic circuits. The main topics addressed in the course regards current and voltage harmonic distortion and powers in non-sinusoidal steady-state, Power diodes and SCRs, single phase and three phases rectifiers, Power electronic switches, emerging component, basics of pulse width modulation (PWM), single-phase and three-phase inverters and others. At the end of the course students master power electronics technologies with a special emphasis towards the automation field. The course provides basic in power electronics that are instrumental to the course “Electric Drives for Automation M”.

Course contents

Module I (30h)
Supplements of linear and non-linear electric circuits. Non sinusoidal periodic waveforms. Current and voltage harmonic distortion and powers in non-sinusoidal steady-state. Power diodes and SCRs. Rectifiers: single-phase and three-phase. Power electronic switches: BJT, MOSFET, IGBT, emerging components. Basics of pulse width modulation (PWM). Choppers: buck, boost, buck-boost, Cùk, half-bridge, full bridge.

Module II (30h)
Single-phase inverters: square-wave, PWM. Three-phase inverters: square-wave (six-step), PWM. Common-mode signal injection: centered and discontinuous modulations. Space vector modulation (SVM). Multilevel inverters: cascaded H-bridge, Diode clamped (NPC), Flying capacitor. Modular multilevel converters (MMC). Digital implementation ofmodulation techniques: microcontrollers, DSP boards, FPGA systems.

Readings/Bibliography

- Mohan, Undeland, Robbins: Power Electronics. J.Wiley & Sons

- Rashid: Power Electronics: Circuits Devices and Applications. Prentice Hall

- Kassakian, Schlecht, Verrghese: Principles of Power Electronics. MIT Addison-Wesley

Teaching methods

Classroom lessons (theory and applications). Some practical experiences including DSP/FPGA boards.

Assessment methods

Written and eventually oral exam (interview). Possibility of midterm written exams.

Teaching tools

Lesson notes in English. Use of LTspice and Simulink (Matlab) for circuit simulations.

Italian textbooks are also available. Please directly contact the professor.

Office hours

See the website of Gabriele Grandi

See the website of Mattia Ricco