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ENEX13002 - Power Electronics

General Information

Unit Synopsis

This unit is based on your knowledge on electronics you previously studied. In this unit you will learn about power semiconductors such as Diacs, silicon controlled rectifiers (SCR), metal oxide silicon field effect transistors (MOSFET), isolated gate bipolar junction transistors (IGBT), their symbols and theory of operation and limitations. You will also learn to calculate thermal dissipation requirements of power semiconductors and to choose suitable heat sinks. You will be introduced to the concepts of alternating current (AC) to direct current (DC), DC to DC, and DC to AC circuits, pulse width modulation (PWM) control, and chopper circuits. You will also learn about different types of motors and their control including DC motor control, AC motor control and stepper motor control schemes. You will learn to simulate power electronic circuits and develop power electronics solutions industrial problems. Students enrolled in distance mode are required to attend a compulsory Residential School.

Details

Level Undergraduate
Unit Level 3
Credit Points 6
Student Contribution Band SCA Band 2
Fraction of Full-Time Student Load 0.125
Pre-requisites or Co-requisites

Prerequisites: ENEX12002 Introductory Electronics OR ( ENEE13018 Analogue Electronics and ENEE13020 Digital Electronics) AND (ENEX12001 Electrical Power and Machines OR ENEE12015 Electrical Power Engineering)

Important note: Students enrolled in a subsequent unit who failed their pre-requisite unit, should drop the subsequent unit before the census date or within 10 working days of Fail grade notification. Students who do not drop the unit in this timeframe cannot later drop the unit without academic and financial liability. See details in the Assessment Policy and Procedure (Higher Education Coursework).

Class Timetable View Unit Timetable
Residential School Compulsory Residential School
View Unit Residential School

Unit Availabilities from Term 1 - 2020

Term 1 - 2020 Profile
Mackay
Mixed Mode
Term 1 - 2021 Profile
Mackay
Mixed Mode
Term 2 - 2022 Profile
Mackay
Mixed Mode

Attendance Requirements

All on-campus students are expected to attend scheduled classes – in some units, these classes are identified as a mandatory (pass/fail) component and attendance is compulsory. International students, on a student visa, must maintain a full time study load and meet both attendance and academic progress requirements in each study period (satisfactory attendance for International students is defined as maintaining at least an 80% attendance record).

Assessment Overview

Recommended Student Time Commitment

Each 6-credit Undergraduate unit at CQUniversity requires an overall time commitment of an average of 12.5 hours of study per week, making a total of 150 hours for the unit.

Assessment Tasks

Assessment Task Weighting
1. Written Assessment 15%
2. Written Assessment 15%
3. Practical and Written Assessment 15%
4. Practical and Written Assessment 15%
5. Examination 40%

This is a graded unit: your overall grade will be calculated from the marks or grades for each assessment task, based on the relative weightings shown in the table above. You must obtain an overall mark for the unit of at least 50%, or an overall grade of ‘pass’ in order to pass the unit. If any ‘pass/fail’ tasks are shown in the table above they must also be completed successfully (‘pass’ grade). You must also meet any minimum mark requirements specified for a particular assessment task, as detailed in the ‘assessment task’ section (note that in some instances, the minimum mark for a task may be greater than 50%).

Consult the University’s Grades and Results Policy for more details of interim results and final grades

Past Exams

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Previous Feedback

Term 1 - 2021 : The overall satisfaction for students in the last offering of this course was 4 (on a 5 point Likert scale), based on a 72.73% response rate.

Feedback, Recommendations and Responses

Every unit is reviewed for enhancement each year. At the most recent review, the following staff and student feedback items were identified and recommendations were made.

Source: Unit Evaluation
Feedback
Weekly Zoom support meetings were very useful and helpful that they were recorded
Recommendation
Keep the weekly Zoom support meetings. Invite questions via email and Q&A forum for non-attending students.
Action Taken
Had the weekly support sessions and recordings available on Moodle for non-attending students.
Source: Unit Evaluation
Feedback
Limiting the scope and content of the textbook to be relevant to the unit was very helpful.
Recommendation
Keep this approach and keep adding examples where content would be applicable in the workplace.
Action Taken
Was implemented as planned.
Source: Unit Evaluation
Feedback
Self-paced learning is facilitated by all the unit material is online and available.
Recommendation
Keep this approach and improve further.
Action Taken
Done as planned.
Source: Unit Evaluation and verbally at Res School
Feedback
Residential School activities were appreciated and enjoyed.
Recommendation
Keep refining and enhancing the Laboratory work done at the Residential school.
Action Taken
Nil.
Source: Unit Evaluation
Feedback
Students felt that the Exam was a challenge and had too many questions/marks for the given time frame.
Recommendation
Investigate and adapt the structure of future exam paper questions.
Action Taken
Nil.
Source: Unit Evaluation
Feedback
Students felt that they learned a lot from the assessment tasks.
Recommendation
Keep current approach and set practical design assessments.
Action Taken
Nil.
Unit learning Outcomes

On successful completion of this unit, you will be able to:

  1. Explain power semiconductors and their principles of operation
  2. Analyse and model the operation of alternating current (AC) to direct current (DC), DC to DC, DC to AC power converters and inverters
  3. Analyse single phase and three phase rectifier circuits, inverter circuits, and different motor control schemes
  4. Compare and select power electronics drive components for a mechatronic system
  5. Design variable speed motor controllers for different types of electric motors and evaluate their performances
  6. Solve real life problems and communicate professionally using power electronic terminology
  7. Work collaboratively and autonomously and communicate professionally in presenting your solutions

Learning outcomes are linked to Engineers Australia Stage 1 Competencies and also discipline capabilities. You can find the mapping for this on the Engineering Undergraduate Course website.

Alignment of Assessment Tasks to Learning Outcomes
Assessment Tasks Learning Outcomes
1 2 3 4 5 6 7
1 - Written Assessment
2 - Written Assessment
3 - Practical and Written Assessment
4 - Practical and Written Assessment
5 - Examination
Alignment of Graduate Attributes to Learning Outcomes
Introductory Level
Intermediate Level
Graduate Level
Graduate Attributes Learning Outcomes
1 2 3 4 5 6 7
1 - Communication
2 - Problem Solving
3 - Critical Thinking
5 - Team Work
6 - Information Technology Competence
7 - Cross Cultural Competence
8 - Ethical practice
Alignment of Assessment Tasks to Graduate Attributes
Introductory Level
Intermediate Level
Graduate Level
Assessment Tasks Graduate Attributes
1 2 3 4 5 6 7 8 9
1 - Written Assessment
2 - Written Assessment
3 - Practical and Written Assessment
4 - Practical and Written Assessment
5 - Examination