ACADEMICS
Course Details
ELE477 - Electric Machines II
2024-2025 Fall term information
The course is not open this term
ELE477 - Electric Machines II
| Program | Theoretýcal hours | Practical hours | Local credit | ECTS credit |
| Undergraduate | 3 | 0 | 3 | 6 |
| Obligation | : | Elective |
| Prerequisite courses | : | ELE361 |
| Concurrent courses | : | ELE479 |
| Delivery modes | : | Face-to-Face |
| Learning and teaching strategies | : | Lecture, Question and Answer, Problem Solving, Other: This course must be taken together with ELE479 ELECTRIC MACHINES LABORATORY II. |
| Course objective | : | This course is designed to equip seniors with knowledge about the operating characteristics of three-phase and single-phase AC machines widely used in the industry and, their performance analyses based on steady-state equivalent circuit models and phasor diagrams. |
| Learning outcomes | : | A student who completes the course successfully will Know the three-phase distributed winding principles, nature of the magnetic fields produced in three-phase ac machines, Learn basic concepts on three-phase induction machines and synchronous machines, Apply the techniques learned in the class to derive the performance characteristics of three-phase machines based on steady-state equivalent circuit models and phasor diagrams, Be aware of speed control techniques applied to three-phase ac machines, Learn operating principles of single-phase AC motors. |
| Course content | : | Introduction, Three-Phase Distributed Winding Principles, Rotating Magnetic Fields, Winding Factors, Induced EMF, Three-Phase Induction Machines (Equivalent circuit model, operation in motoring, generating and braking modes, blocked-rotor and no-load tests, torque-speed characteristics, ratings and efficiency, starting methods, speed control), Synchronous Machines (generator and motor operation, cylindrical and salient-pole rotor types, equivalent circuit model and phasor diagrams, open- and short-circuit tests, excitation systems and voltage regulation, applications). Single-phase induction motors (equivalent circuit model, steady-state operation, starting, Split-phase motors, capacitor type and shaded pole motors. |
| References | : | Electric Machinery Fundamentals, Chapman, 3rd Ed., McGraw-Hill; Electric Machinery, Fitzgerald, Kingsley, Umans, 5th Ed., McGraw-Hill; Electric Machines, Slemon, Straughen, Addison Wesley; Principles of Electrical Machinery and Power Electronics, Sen, John Wiley; Electromechanics and Electric Machines, Nasar, Unnewehr, 2nd Ed., John Wiley. |
| Weeks | Topics |
|---|---|
| 1 | Introduction |
| 2 | Three-phase distributed winding principles, rotating magnetic fields, winding factors, induced emfs |
| 3 | Three-phase induction machines - operation principles, steady-state equivalent circuit model |
| 4 | Torque-speed characteristics of induction motors |
| 5 | Three-phase induction machines - Blocked-rotor and no-load tests |
| 6 | Motoring, generating and braking modes of operation of induction machines |
| 7 | Ratings and efficiency, starting methods of induction motors |
| 8 | Midterm Exam |
| 9 | Speed control methods of induction motors - examples |
| 10 | Synchronous machine - operation principles, cylindrical and salient rotor types |
| 11 | Equivalent circuit model and phasor diagrams of synchronous machine |
| 12 | Open- and short-circuit test of synchronous machines, excitation systems and voltage regulation |
| 13 | Single-phase induction motors: equivalent circuit model, steady-state operation, starting |
| 14 | Split-phase motors, capacitor type and shaded pole motors |
| 15 | Preparation for Final exam |
| 16 | Final exam |
| Course activities | Number | Percentage |
|---|---|---|
| Attendance | 0 | 0 |
| Laboratory | 0 | 0 |
| Application | 0 | 0 |
| Field activities | 0 | 0 |
| Specific practical training | 0 | 0 |
| Assignments | 5 | 10 |
| Presentation | 0 | 0 |
| Project | 0 | 0 |
| Seminar | 0 | 0 |
| Quiz | 0 | 0 |
| Midterms | 1 | 40 |
| Final exam | 1 | 50 |
| Total | 100 | |
| Percentage of semester activities contributing grade success | 50 | |
| Percentage of final exam contributing grade success | 50 | |
| Total | 100 | |
| Course activities | Number | Duration (hours) | Total workload |
|---|---|---|---|
| Course Duration | 14 | 3 | 42 |
| Laboratory | 0 | 0 | 0 |
| Application | 0 | 0 | 0 |
| Specific practical training | 0 | 0 | 0 |
| Field activities | 0 | 0 | 0 |
| Study Hours Out of Class (Preliminary work, reinforcement, etc.) | 14 | 3 | 42 |
| Presentation / Seminar Preparation | 0 | 0 | 0 |
| Project | 0 | 0 | 0 |
| Homework assignment | 5 | 4 | 20 |
| Quiz | 0 | 0 | 0 |
| Midterms (Study Duration) | 1 | 25 | 25 |
| Final Exam (Study duration) | 1 | 25 | 25 |
| Total workload | 35 | 60 | 154 |
| Key learning outcomes | Contribution level | |||||
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | ||
| 1. | Possesses the theoretical and practical knowledge required in Electrical and Electronics Engineering discipline. | |||||
| 2. | Utilizes his/her theoretical and practical knowledge in the fields of mathematics, science and electrical and electronics engineering towards finding engineering solutions. | |||||
| 3. | Determines and defines a problem in electrical and electronics engineering, then models and solves it by applying the appropriate analytical or numerical methods. | |||||
| 4. | Designs a system under realistic constraints using modern methods and tools. | |||||
| 5. | Designs and performs an experiment, analyzes and interprets the results. | |||||
| 6. | Possesses the necessary qualifications to carry out interdisciplinary work either individually or as a team member. | |||||
| 7. | Accesses information, performs literature search, uses databases and other knowledge sources, follows developments in science and technology. | |||||
| 8. | Performs project planning and time management, plans his/her career development. | |||||
| 9. | Possesses an advanced level of expertise in computer hardware and software, is proficient in using information and communication technologies. | |||||
| 10. | Is competent in oral or written communication; has advanced command of English. | |||||
| 11. | Has an awareness of his/her professional, ethical and social responsibilities. | |||||
| 12. | Has an awareness of the universal impacts and social consequences of engineering solutions and applications; is well-informed about modern-day problems. | |||||
| 13. | Is innovative and inquisitive; has a high level of professional self-esteem. | |||||
1: Lowest, 2: Low, 3: Average, 4: High, 5: Highest