Units
Power Electronics
Unit code: ENB455
Contact hours: 4 per week
Credit points: 12
Information about fees and unit costs
The unit introduces the student to advanced industrial electronics and power converters with different applications. Students learn how to model power converters, design a controller and simulate power electronic systems using Matlab/Simulink software for different applications. They also learn practical issues such as EMI, efficiency and losses to design a controller and power circuits.
Availability
| Semester | Available |
|---|---|
| 2013 Semester 1 | Yes |
Sample subject outline - Semester 1 2013
Note: Subject outlines often change before the semester begins. Below is a sample outline.
Rationale
Power electronic circuits or systems can be found in any modern electrical/electronic system where power processing is required, e.g. vehicles, computer, telecommunication, mobile phones etc. Therefore a thorough background on complex converter topologies, modulation techniques and emerging power electronic circuits is an added benefit to any future electrical engineering graduate. Hence, this unit is introduced as an extension of the unit ENB344 Industrial Electronics.
Aims
The aim of this unit is to introduce the principles of operation of complex converter topologies and raise awareness on their system oriented designs, control aspects and advanced modulation techniques. The new developments in the area of power electronics will also be given special emphasis.
Objectives
On completion of this unit you should be able to:
- Describe the principles of operation of complex power electronic converter topologies.
- Analyse and design different types of multi level converters and converters applied with advanced modulation techniques.
- Interpret input/output characteristics of power electronic converters applied with different advanced modulation techniques.
- Use simulation tools to model and analyse multi level converter topologies applied with advanced modulation techniques.
- Perform experiments on power electronic hardware circuits; obtain measurements and observe various electrical parameters.
- Analyse an unexpected behaviour of a complex power electronic converter topology.
Content
The following major topics will be discussed in this unit:
- Introduction to Power Electronics
- Pulse Width Modulation Techniques
- Multi-level Converters
- Current Control Techniques
- Switched Mode Power Supply with Lossy Components and PFC
- Modelling of Power Converters and Controller Design
- EMC/EMI in Power Electronic Systems
- Power Electronics in Renewable Energy and Power Systems
- AC Drives
Approaches to Teaching and Learning
Mode of Teaching:
Lectures: 2 hours
Tutorial: 1 hour interactive problem solving
Labs: approx 1 hour per week, including three computer laboratories and one practical laboratory exercise
The unit takes a problem based learning approach relating theory to practice with collaborative groupwork in laboratory sessions backed up by individual oral assessment to support independent learning. Use of industry applications also supports real world learning.
All necessary learning resources will be made available to you online.
Assessment
The assessment items incorporated in this unit comprises a computer laboratory simulation (with practical, written and oral tasks), one laboratory experiment and one written examination.Computer laboratories and Practical Laboratories will be assessed during the session itself and you will be provided with immediate feedback on your assessment. Additionally, these marks will be uploaded to the Blackboard site for your access after each session.
Assessment name:
Laboratory
Description:
In this task, you will be given simulation files of power electronics circuits to run, and a task sheet to complete. This task sheet will be assessed during the session itself and the final mark will be based on written answers as well as your ability to substantiate them orally. This assessment item is run on three different weeks as three separate components.
Relates to objectives:
2, 3 and 4
Weight:
30%
Internal or external:
Internal
Group or individual:
Individual
Due date:
Week 9
Assessment name:
Laboratory/Practical
Description:
In this task, you will be given hands on experience on how to conduct tests on a real power electronic hardware circuit. In a small group of 3-4, you are required to conduct experiments according to a lab sheet on a real power electronic test board and observe and measure input and output parameters. You are expected to complete the lab sheet and answer questions individually. An individual mark will be awarded during the session itself.
Relates to objectives:
2,3,5 and 6.
Weight:
10%
Internal or external:
Internal
Group or individual:
Group with Individual Component
Due date:
Week 10
Assessment name:
Examination
Description:
In this task, you are require to answer a set of questions based on the principles taught in lectures, tutorials and lab classes.
Relates to objectives:
1, 2, and 3
Weight:
60%
Internal or external:
Internal
Group or individual:
Individual
Due date:
Exam Period
Academic Honesty
QUT is committed to maintaining high academic standards to protect the value of its qualifications. To assist you in assuring the academic integrity of your assessment you are encouraged to make use of the support materials and services available to help you consider and check your assessment items. Important information about the university's approach to academic integrity of assessment is on your unit Blackboard site.
A breach of academic integrity is regarded as Student Misconduct and can lead to the imposition of penalties.
Resource materials
Recommended Textbooks
Title: Fundamentals of Power Electronics
Author: R. W. Erickson
Year and Publisher: 2004, Kluwer Academic
Edition: Second
Title: Power Electronics, Circuits, Devices and Applications
Author: Muhammad H. Rashid
Year: Publisher: (2003) Pearson Education
Edition: Third
Title: Power Electronics: Converters, Applications, and Design
Author: Mohan, Undeland and Robbins
Year: Publisher: (2003) John Wiley & Sons
Edition: Third
Title: High Power Converters and AC Drives
Author: Bin Wu
Year: Publisher: (2006) John Wiley& Sons
Edition:
Title: Modern Power Electronics and AC Drives
Author: Bimal K. Bose
Year: Publisher: (2002) Prentice Hall
Edition:
Online Resources
Title: Power Electronics Education E-Book
Author: Firuz Zare
Year: (2008), www.peeeb.com
Website: Interactive Power Electronics Seminar (iPES), www.ipes.ethz.ch
Risk assessment statement
You will undertake lectures and tutorials in the traditional classrooms and lecture theatres. As such, there are no extraordinary workplace health and safety issues associated with these components of the unit.
You will be required to undertake practical sessions in the laboratory under the supervision of the lecturer and technical staff of the School. In any laboratory practicals you will be advised of requirements of safe and responsible behaviour and will be required to wear appropriate protective items (e.g. closed shoes or steel capped shoes).
You will undergo a health and safety induction before the commencement of the practical sessions and will be issued with a safety induction card. If you do not have a safety induction card you will be denied access to laboratories.
Disclaimer - Offer of some units is subject to viability, and information in these Unit Outlines is subject to change prior to commencement of semester.
Last modified: 22-Oct-2012