AC Motor Drives: Converters and Control

2018/2019

Prerequisite/Recommended prerequisite for participation in the module

This module is based on knowledge gained on 1st Semester of the MSc programme in Electro-Mechanical System Design.

Content, progress and pedagogy of the module

Learning objectives

Knowledge

  • Have gained knowledge of methods for electro-mechanical energy conversion by means of three-phase AC machines
  • Have gained knowledge of the construction and the operating principles for induction machines and for three-phase sine-wave brushless machines
  • Understand the stationary performance characteristics for such machines
  • Have a solid understanding of stationary and dynamic models of AC machines
  • Have gained a solid understanding of basic methods for speed control of AC machines using power electronic converters
  • Have gained a basic understanding of high-performance torque control methods based on vector-control principles
  • Have gained knowledge of power electronic converters for AC drives
  • Have knowledge of dynamic models of power converters
  • Understand the principle of three-phase pulse-width modulation (PWM) for three-phase systems and being able to apply PWM as part of an AC motor control loop

Skills

  • Be able to explain the operating principles for induction and brushless machines
  • Be able to apply equivalent circuit diagrams for stationary performance analysis
  • Be able to measure motor parameters using standard tests
  • Be able to make dynamic models of AC machines using space-vector models in stationary and rotating coordinates
  • Be able to design and to simulate simple scalar control techniques for AC machines based on stationary performance characteristics
  • Be able to understand field-oriented control techniques and to apply these for high-performance AC drives
  • Be able to design a pulse-width modulator using both carrier-based and space-vector based approaches
  • Being able to analyse and to model single- and three-phase power converters taking component voltage drops and blanking effects into account

Competences

  • Have the ability to analyse, model and simulate the stationary and dynamic characteristics for an AC motor drive based on both induction and permanent-magnet machines
  • Be able to design a complete AC motor control system using either classical V/Hz techniques or high-performance vector-control techniques based on field-orientation and instantaneous current control

Type of instruction

The teaching is organized in accordance with the general form of teaching. Please see the programme cirruculum §17.

Extent and expected workload

Since it is a 5 ECTS course module the expected workload is 150 hours for the student.

Exam

Exams

Name of examAC Motor Drives: Converters and Control
Type of exam
Written or oral exam
ECTS5
Assessment7-point grading scale
Type of gradingInternal examination

Facts about the module

Danish titleAC motor drev: konvertere og regulering
Module codeM-EMS-K2-4
Module typeCourse
Duration1 semester
SemesterSpring
ECTS5
Language of instructionEnglish
Empty-place SchemeYes
Location of the lectureCampus Aalborg
Responsible for the module

Organisation

Study BoardStudy Board of Industry and Global Business Development
FacultyFaculty of Engineering and Science