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Unit information: Industrial Electronics 2 in 2021/22

Unit name Industrial Electronics 2
Unit code EENG27000
Credit points 10
Level of study I/5
Teaching block(s) Teaching Block 2 (weeks 13 - 24)
Unit director Dr. Simpson
Open unit status Not open




School/department Department of Electrical & Electronic Engineering
Faculty Faculty of Engineering


This unit introduces various forms of linear and rotary electromechanical energy conversion systems. The basic concepts of electromagnetic theory are revised and applied in the study of voice coil and self-excited linear and rotary actuators. An equivalent circuit model for the complete electromechanical system is developed which provides a basis for subsequent study of dynamic behaviour. The DC machine output characteristics are revised and its operation within a variable speed drive is presented. The operation of power electronic servo amplifiers and phase-controlled rectifiers are also introduced. As an introduction to the AC machine, the concept of the rotating magnetic field is discussed. Subsequent study concentrates on the asynchronous motor where its operation is described, the equivalent circuit is derived and its output characteristics under fixed and variable frequency excitation are analysed.

Intended learning outcomes

Having completed this unit, a successful student will be able to:

  1. Recall the ways in which energy and power are stored and determined in electrical and mechanical systems.
  2. Identify different electromechanical energy transfer mechanisms and understand the underlying mechanism responsible for energy transfer within a particular system.
  3. Develop models of basic linear (pseudo-static) simply excited electromechanical systems using energy methods.
  4. Recognise the limitations of the linear energy methods and use a graphical method to allow for material non-linearities.
  5. Formulate equivalent circuits to represent both the electrical and mechanical components of a dynamic electro-mechanical system.
  6. Analyse the electrical and mechanical behaviours of voice-coil based actuators using the formulated equivalent circuits.
  7. Recognise the difference between and develop equivalent circuit models of the various d.c. electrical machine topologies.
  8. Understand quadrants of operations and identify the “quadrants” in which a particular electrical and electromechanical system operates within.
  9. Design and analyse simple ac-dc power conversion systems.

Teaching details

Large group lectures and small group laboratory-based investigative exercise.

Assessment Details

Name: Lab Technical Note

Description: Electrical machines and drives laboratory (ILOs 1, 8, 9)

% of final mark: 20

Name: Terminal Exam

Description: 2 hour written paper

% of final mark: 80

Report on Electrical machines and drives laboratory, 20% (All ILOs)


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