ELECTRIC DRIVES B
Learning outcomes of the course unit
The course provide the basic knowledge required for the usage and the design of the most common electrical drives.
Azionamenti elettrici per l’automazione A
Course contents summary
Electric Drives classifications.
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 permanent magnet dc motors. Dynamic behaviour of dc motors. Design of motor control (torque control) and drive control (speed and position control).
Dc motor supply: soft switching modulation and torque ripple reduction.
Design of Electric Drives based on Permanent Magnet Synchronous Motors (PMSM). Dinamical 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.
Incremental electrical drives: basic stepping motor control circuits.
The exam is based on an oral discussion
Simulation (Matlab Simulink) and design of electric drives.