48571 Electrical Machines
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Credit points: 6 cp
Subject level:
Undergraduate
Result type: Grade and marksRequisite(s): 48531 Electromechanical Automation
Recommended studies: advanced physics and calculus are essential for this subject, as well as an understanding of circuit theory and machine principles
Description
This subject aims to introduce to students modern electrical machines and drives, including introduction of electrical machine technology and applications, Matlab/Simulink models of power electronic converters, single phase and three phase transformers, high frequency transformers used in power electronic circuits, fundamentals of electrical drives, DC machines and drives, synchronous machines and drives, induction machines and drives, and switched reluctance machines. Issues such as variable speed drive and energy efficiency are addressed. The numerical simulation of various modern drive systems is presented. The subject is delivered through lectures, tutorials, laboratory experiments and assignments. Students are also required to conduct four labs for measuring the parameters and performance of various electrical machines and four assignments for numerical simulation of various electrical machines and drive systems with the help of the lecturer and tutor.
Subject learning objectives (SLOs)
Upon successful completion of this subject students should be able to:
| 1. | Analyse stakeholder needs, global perspectives and environmental impact in electrical drive technology. (B.1) |
|---|---|
| 2. | Develop practical skills in resource management and decision-making in laboratory work. (D.1) |
| 3. | Apply professional expertise and knowledge of new developments to identify and solve technical problems in electrical machines and drive systems. (D.1) |
| 4. | Demonstrate technical writing and teamwork skills in conducting engineering laboratory work. (E.1) |
Course intended learning outcomes (CILOs)
This subject also contributes specifically to the development of the following Course Intended Learning Outcomes (CILOs):
- Socially Responsible: FEIT graduates identify, engage, interpret and analyse stakeholder needs and cultural perspectives, establish priorities and goals, and identify constraints, uncertainties and risks (social, ethical, cultural, legislative, environmental, economics etc.) to define the system requirements. (B.1)
- Technically Proficient: FEIT graduates apply abstraction, mathematics and discipline fundamentals, software, tools and techniques to evaluate, implement and operate systems. (D.1)
- Collaborative and Communicative: FEIT graduates work as an effective member or leader of diverse teams, communicating effectively and operating within cross-disciplinary and cross-cultural contexts in the workplace. (E.1)
Contribution to the development of graduate attributes
Engineers Australia Stage 1 Competencies
This subject contributes to the development of the following Engineers Australia Stage 1 Competencies:
- 1.3. In-depth understanding of specialist bodies of knowledge within the engineering discipline.
- 1.6. Understanding of the scope, principles, norms, accountabilities and bounds of sustainable engineering practice in the specific discipline.
- 2.2. Fluent application of engineering techniques, tools and resources.
- 3.2. Effective oral and written communication in professional and lay domains.
- 3.6. Effective team membership and team leadership.
Teaching and learning strategies
This subject uses a problem based learning strategy that allows students to research and develop their own solutions to complex electrical machines and drive systems. A series of practice based laboratory and assignment tasks are designed to reflect current industry practice. Class time occurs in a two hour lecture and a three hour laboratory/tutorial session per week.
Student learning is supported in the following way:
(1) Prior to each lecture session, students are required to read the corresponding chapters of lecture notes available in Canvas and the textbook and reference book listed in the subject outline.
(2) Prior to each lab, students will be required to study the Lab Notes and associated readings and prepare questions, experimental procedures, and data processing and analysis methods. In the lab, students will work in groups of 4 on their laboratory tasks. During the lab, the lab tutor will be available for discussion about the experimental procedure and expected testing results. At the end of the lab, the lab tutor will be available to review the lab work and provide immediate feedback. Although the experiments are done in groups, each student is required to write his/her individual lab reports, and submit it in pdf format by email to the lab tutor by the due dates listed in the subject timetable. The marked lab reports will be returned to students with feedback and comments.
(3) Each of the assignments should be done individually. Each student should submit his/her reports in pdf format by email to the tutorial tutor by the due dates listed in the subject timetable. The tutorial tutor will be available for one-on-one consultations on particular aspects of assignment work during the tutorial sessions, and after marking, the tutor will return the assignment reports to the students with feedback and comments.
Content (topics)
The contents of the subject include: introduction of electrical machine technology and applications, Matlab/Simulink models of power electronic converters, three phase electrical circuits, single phase and three phase transformers, high frequency transformers used in power electronic circuits, fundamentals of electrical drives, DC machines and drives, synchronous machines and drives, induction machines and drives, and switched reluctance machines.
Assessment
Assessment task 1: Lab-related assignments
| Intent: | Lab-related assignments. 2 or 3 people are to form a group to complete this task. |
|---|---|
| Objective(s): | This assessment task addresses the following subject learning objectives (SLOs): 2 and 4 This assessment task contributes to the development of the following Course Intended Learning Outcomes (CILOs): D.1 and E.1 |
| Type: | Report |
| Groupwork: | Group, group assessed |
| Weight: | 20% |
Assessment task 2: Chapter Assignments
| Intent: | To strengthen students' concept of electrical drives and improve their understanding of intelligent motor control strategies. |
|---|---|
| Objective(s): | This assessment task addresses the following subject learning objectives (SLOs): 1 and 3 This assessment task contributes to the development of the following Course Intended Learning Outcomes (CILOs): B.1 and D.1 |
| Type: | Project |
| Groupwork: | Individual |
| Weight: | 20% |
Assessment task 3: Mid-session assignment
| Intent: | To strengthen students' understanding of the fundamental concepts of electrical machines and drive systems. |
|---|---|
| Objective(s): | This assessment task addresses the following subject learning objectives (SLOs): 1, 3 and 4 This assessment task contributes to the development of the following Course Intended Learning Outcomes (CILOs): B.1, D.1 and E.1 |
| Type: | Report |
| Groupwork: | Individual |
| Weight: | 20% |
Assessment task 4: Final assignment
| Intent: | To strengthen students' understanding of concept, knowledge and problem-solving skills of electrical machines and drives |
|---|---|
| Objective(s): | This assessment task addresses the following subject learning objectives (SLOs): 1 and 3 This assessment task contributes to the development of the following Course Intended Learning Outcomes (CILOs): B.1 and D.1 |
| Type: | Report |
| Groupwork: | Individual |
| Weight: | 40% |
Minimum requirements
In order to pass the subject, a student must achieve an overall mark of 50% or more.
Required texts
Fitzgerald, A.E., Kingsley, Jr., C., Umans, S.D., Electric Machinery, 6th Ed., McGraw-Hill, 2003, ISBN-139780073660097
References
Vukosavic, S.N., Electrical Machines, Springer, 2013, ISBN: 978-1-4614-0399-9 (Print), 978-1-4614-0400-2 (Online)
Wildi, T., Electrical Machines, Drives and Power Systems, 6th Ed., Prentice Hall, 2005, ISBN 10: 0131776916 / 0-13-177691-6, ISBN 13: 9780131776913