88152 - Electric Actuators P

Academic Year 2023/2024

  • Docente: Luca Zarri
  • Credits: 3
  • SSD: ING-IND/32
  • Language: Italian
  • Teaching Mode: Traditional lectures
  • Campus: Bologna
  • Corso: First cycle degree programme (L) in Mechatronics (cod. 5818)

    Also valid for First cycle degree programme (L) in Mechatronics (cod. 6009)

Learning outcomes

At the end of the course, the student has the basic knowledge of the operation and electromagnetic behavior of the main electric actuators used in the industrial field.

In particular, the student is able to

- Understand the principles underlying the electromechanical conversion of electrical energy

- Describe the main characteristics and operation of direct current motors, synchronous motors (brushless) and asynchronous motors

- Evaluate the suitability of an electric actuator to meet the requirements of a specific application, taking into account thermal problems, interactions with the mechanical load and limitations of the power electronic converter.

Course contents

The course is for students of Mechatronics and aims to provide the essential tools to understand the structure and operation of the main electric actuators used in industrial applications.

Prerequisites for the course are the courses of physics, electrical engineering, electronics, principles of mechanics and measurement instrumentation. It is assumed that the student is aware of the fundamental laws of electric circuits and knows the main structures for static power conversion.

Outline

Direct current machines

- Structure and working principle.

- Torque expression, equivalent electric circuit and mechanical characteristic.

- Nominal and overload performances.

- Principles of DC motor torque and speed control. Synchronous Machines - Structure and working principle.

- Torque expression, equivalent electric circuit and mechanical characteristic.

- Nominal and overload performances.

- Principles of torque and speed control of synchronous motor.

Asynchronous Machines

- Structure and working principle.

- Torque expression, equivalent electric circuit and mechanical characteristic.

- Problems related to starting the asynchronous motor.

- Principles of speed control of the asynchronous motor.

Office hours

See the website of Luca Zarri