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ELE3805 Power Electronics Principles and Applications

Semester 2, 2021 On-campus Toowoomba
Short Description: Power Elec Princ & Application
Units : 1
Faculty or Section : Faculty of Health, Engineering and Sciences
School or Department : School of Mechanical and Electrical Engineering
Student contribution band : Band 2
ASCED code : 031301 - Electrical Engineering
Grading basis : Graded
Version produced : 28 July 2021


Examiner: Joel Kennedy


Pre-requisite: (ELE1502 and ELE1801) or Students must be enrolled in one of the following Programs: GCEN or METC or MEPR or GCNS or GDNS or MENS


Power Electronics deals with the study of semiconductor devices and their applications in in the industry. Power semiconductor devices, such as the diode, thyristor, triac and power transistor, are used in applications as switching devices. The modern electrical engineer requires knowledge of these devices and their applications in rectification, inversion, frequency conversion, dc and ac machine control, renewable energy and switch-mode power supplies. Engineers need to be aware of the undesirable effects that any power electronic equipment imposes on both the supply system and the load, and how these effects may be minimised.


The course objectives define the student learning outcomes for a course. On completion of this course, students should be able to:

  1. compare the characteristics of common power semi-conductor devices;
  2. evaluate rms and mean values of typical waveforms;
  3. analyse common power electronic circuits quantitatively;
  4. select motor torque ratings for particular applications;
  5. analyse DC adjustable speed drive systems quantitatively;
  6. select AC adjustable speed motor/drive combinations to meet specified requirements;
  7. design drive circuits for power electronic switches to meet required switching performance;
  8. evaluate the relative benefits of snubber circuits;
  9. analyse the performance of power electronic converters in renewable energy applications.


Description Weighting(%)
1. Mathematical tools for power electronic circuit analysis 5.00
2. Characteristics of power electronic devices 10.00
3. DC to DC Converters 10.00
4. Diode Rectifiers 10.00
5. Line frequency fully controlled and half controlled converters 10.00
6. Switch mode inverters 10.00
7. Switching DC power supplies 10.00
8. Overview of electrical drives systems 5.00
9. DC adjustable speed drives 10.00
10. AC adjustable speed drives 10.00
11. Renewable Energy Applications 5.00
12. Thermal protection, drive circuits and snubber circuits 5.00

Text and materials required to be purchased or accessed

ALL textbooks and materials available to be purchased can be sourced from USQ's Online Bookshop (unless otherwise stated). (

Please contact us for alternative purchase options from USQ Bookshop. (

There are no texts or materials required for this course.

Reference materials

Reference materials are materials that, if accessed by students, may improve their knowledge and understanding of the material in the course and enrich their learning experience.
Wildi, T 2005, Electrical machines, drives, and power systems, 6th edn, Pearson Prentice Hall, Upper Saddle River, NJ.
IEE and IET Proceedings.
IEEE Spectrum.
IEEE Transactions on Industry Applications.
IEEE Transactions on Power Electronics.

Student workload expectations

Activity Hours
Assessments 30.00
Examinations 2.00
Lectures 39.00
Private Study 71.00
Tutorials 13.00

Assessment details

Description Marks out of Wtg (%) Due Date Objectives Assessed Notes
ASSIGNMENT 1 200 20 20 Aug 2021 1,2,3 (see note 1)
ASSIGNMENT 2 200 20 30 Sep 2021 4,5,6,7
OPEN EXAMINATION - ONLINE 600 60 End S2 4,6,8,9 (see note 2)

  1. 3 part assessment: Quiz, Workings and Corrections submissions
  2. This will be an Open Examination - Online. The total working time for the examination is 2 hours. The examination date will be available via UConnect when the official examination timetable has been released.

Important assessment information

  1. Attendance requirements:
    It is the students' responsibility to attend and participate appropriately in all activities (such as lectures, tutorials, laboratories and practical work) scheduled for them, and to study all material provided to them or required to be accessed by them to maximise their chance of meeting the objectives of the course and to be informed of course-related activities and administration.

  2. Requirements for students to complete each assessment item satisfactorily:
    Requirements for students to complete each assessment item satisfactorily:
    To satisfactorily complete an assessment item a student must achieve at least 50% of the marks or a grade of at least C-. Students do not have to satisfactorily complete each assessment item to be awarded a passing grade in this course. Refer to Statement 4 below for the requirements to receive a passing grade in this course.

  3. Penalties for late submission of required work:
    Students should refer to the Assessment Procedure (point 4.2.4)

  4. Requirements for student to be awarded a passing grade in the course:
    To be assured of receiving a passing grade a student must obtain at least 50% of the total weighted marks available for the course (i.e. the Primary Hurdle), and have satisfied the Secondary Hurdle (Supervised), i.e. the end of semester examination by achieving at least 40% of the weighted marks available for that assessment item.

    Supplementary assessment may be offered where a student has undertaken all of the required summative assessment items and has passed the Primary Hurdle but failed to satisfy the Secondary Hurdle (Supervised), or has satisfied the Secondary Hurdle (Supervised) but failed to achieve a passing Final Grade by 5% or less of the total weighted Marks.

    To be awarded a passing grade for a supplementary assessment item (if applicable), a student must achieve at least 50% of the available marks for the supplementary assessment item as per the Assessment Procedure (point 4.4.2).

  5. Method used to combine assessment results to attain final grade:
    The final grades for students will be assigned on the basis of the weighted aggregate of the marks (or grades) obtained for each of the summative assessment items in the course.

  6. Examination information:
    An Online Examination is one in which candidates may have access to any printed, written, or online material as well as a calculator.

  7. Examination period when Deferred/Supplementary examinations will be held:
    Deferred and Supplementary examinations will be held in accordance with the Assessment Procedure

  8. University Student Policies:
    Students should read the USQ policies: Definitions, Assessment and Student Academic Misconduct to avoid actions which might contravene University policies and practices. These policies can be found at

Assessment notes

  1. Students must familiarise themselves with the USQ Assessment Procedures (

  2. IEEE is the referencing system required in this course. Students should use IEEE style in their assignments to format details of the information sources they have cited in their work. For further information on this referencing style, refer to the below website:

Other requirements

  1. Students will require access to e-mail and internet access to UConnect for this course.

Date printed 28 July 2021