- UCAS course code
- UCAS institution code
BEng Electrical and Electronic Engineering
Year of entry: 2021
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Course unit details:
Electrical Drive Systems
|Unit level||Level 3|
|Teaching period(s)||Semester 2|
|Offered by||Department of Electrical & Electronic Engineering|
|Available as a free choice unit?||No|
Brief Description of the Unit:
This unit will build on the material covered in the level 2 programme unit 'Machines, Drives and Power Electronics' to cover the selection, configuration and control of electrical machines and their associated power converters for a range of applications. Energy recovery from the load to the power network will also be included.
The unit will cover the following:
- Reasons for using an electrical drive system, with examples across a range of applications. Drive system design for torque or speed control or control of other mechanical or electrical system variables.
- Drive specification and selection, based on the torque-speed characteristic of the load and the torque-speed envelope of the motor, including field weakening. Driving and braking torque requirements of accelerating and decelerating loads.
- Induction machines: comparison of energy use with direct-on-line operation, variable voltage control, scalar voltage/frequency control and variable resistance control; machine and drive system analysis; effect of terminal harmonics.
- Synchronous machines: steady-state analysis of wound field and permanent magnet brushless machines, two-axis theory (d-q) to introduce closed-loop vector control and advanced control philosophies.
- Elements of a typical electrical drive system and their configuration including: the power electronic interface; current and voltage control methods; 4-quadrant operation; energy recovery; dump resistor sizing; sensing; protection; switchgear and the controller platform.
|Unit title||Unit code||Requirement type||Description|
|Machines, Drives & Power Electronics||EEEN20020||Pre-Requisite||Compulsory|
This course unit detail provides the framework for delivery in 2020/21 and may be subject to change due to any additional Covid-19 impact. Please see Blackboard / course unit related emails for any further updates.
The course unit aims to:
- Introduce the key components of electric drive systems,
- Show how to select an electrical drive based on the torque speed requirements of the driven load for a range of applications,
- Show how modern power electronics can be used for machine speed and torque control,
- Identify control strategies for improving the energy efficiency and controllability of driven systems and enabling kinetic or potential energy recovery.
On the successful completion of the course, students will be able to:
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Teaching and learning methods
Lectures with slides and lots of worked examples; two lab exercises; revision surgery.
Two laboratory sessions
Lab 1: Short report (7%)
Lab 2: Assessed in-lab (3%) and by Blackboard quiz (4%)
Blackboard mid-semester Quiz
A computer-based (Blackboard) quiz, including multiple choice and simple calculations, answer all questions
Calculators are permitted
The quiz forms 6% of the overall unit assessment
 B. K. Bose, Modern power electronics and AC drives . Upper Saddle River, NJ: Prentice Hall PTR, 2002.
 R. M. Crowder, Electric drives and electromechanical systems , 1st ed. Oxford¿;: Butterworth-Heinemann, 2006.
 A. author. Hughes, Electric motors and drives¿: fundamentals, types and applications , 4th edition. Amsterdam: Elsevier, 2013.
 J. M. D. (John M. D. . Murphy, Power electronic control of AC motors . Oxford: Pergamon, 1988.
 J. Hindmarsh, Electrical machines and drive systems , 3rd ed. Oxford: Butterworth-Heinemann, 1996.
 N. Mohan, Power electronics¿: converters, applications, and design , 3rd ed. Hoboken, N.J: Wiley, 2003.
 P. R. Giuliani, Ed., Electrical control for machines., 6th ed. / Kenneth B. Rexford, Peter R. Giuliani. Albany, N.Y: Delmar, 2003.
 T. Wildi, Electrical machines, drives, and power systems , 6th ed. [International ed.]. Upper Saddle River, N.J: Prentice Hall, 2006.
 B. K. Bose, Power electronics and motor drives¿: advances and trends . Oxford: Academic, 2006.
|Scheduled activity hours|
|Practical classes & workshops||6|
|Independent study hours|
|Judith Apsley||Unit coordinator|