The course provides the basic knowledge required for the usage and the design of the most common electrical drives.
Electric circuits; fundamentals of power electronics and electronic power converters.
Course contents summary
Electromechanical energy conversion; DC and AC (brushless, induction) motor drives; digital control.
Electromechanical energy conversion. Electric Drives classification and characteristics.
The main components of electric drives: analog and digital PID regulators, design of analog PID using Operational amplifiers. Speed and position transducers: brushless tachometer, resolver, incremental and absolute encoders, hall effect current transducers.
Design of Electric Drives based on DC motors. Operation and control of DC motors.
Design of Electric Drives based on Permanent Magnet Synchronous Motors (PMSM). Dynamic behaviour of PMSM. Design of motor control (torque control) and drive control (speed and position control).
Design of Electric Drives based on induction motors. Dynamic behaviour of induction motors. Flux observers and flux control. Design of motor control (torque control) and drive control (speed and position control). Field Oriented Control of induction motors. Voltage Source Inverter (VSI) and Current Controlled Voltage Source Inverter (CCVSI): Space Vector Modulation.
Lecture notes available from the LEA online platform.
Assessment methods and criteria
Report on the laboratory activity and oral examination.
At the end of the laboratory activities each team of students must deliver a written report. After receiving an evaluation of their report, the students can individually take the oral examination.
The result of the oral examination accounts for 2/3 of the final mark, while the laboratory activity evaluation accounts for 1/3.