Course Details

ELE 615 Electric Motor Drive Systems
2021-2022 Fall term information

The course is not open this term

Timing data are obtained using weekly schedule program tables. To make sure whether the course is cancelled or time-shifted for a specific week one should consult the supervisor and/or follow the announcements.

Course definition tables are extracted from the ECTS Course Catalog web site of Hacettepe University ( in real-time and displayed here. Please check the appropriate page on the original site against any technical problems. Course data last updated on 23/10/2021.


Course Name Code Semester Theory
Credit ECTS
Prerequisite(s)Students are expected to have taken ELE 454 Power Electronics and ELE 361 Electrical Machines I courses.
Course languageTurkish
Course typeElective 
Mode of DeliveryFace-to-Face 
Learning and teaching strategiesLecture
Question and Answer
Problem Solving
Instructor (s)Department Faculty 
Course objectiveThis course is designed to equip seniors with knowledge about operation principles and design of modern, static AC and DC motor drives, and to give them an ability to choose such systems for various industrial applications. 
Learning outcomes
  1. A student completing the course will successfully L.O.1. Recognise and classify various types of electric motor drives,
  2. L.O.2. Choose and design such systems for a given application,
  3. L.O.3. Know the advantages and disadvantages of various schemes for a given application,
  4. L.O.4. Apply the techniques and algorithms learnt in the class to real-life applications,
  5. L.O.5. Have the adequate knowledge to follow and understand advanced up-to-date technologies in the field of electric motor drives.
Course ContentIntroduction - Basic definitions for static dc and ac drives, classifications, and four-quadrant operation,
The mechanical system,
Mechanical load characteristics,
Four quadrant drive characteristics - definition of the speed control problem,
Solid State DC Motor Speed Control,
Solid State AC Motor Speed Control,
Electric braking, Electric Motor Starting,
Selection of Drives,
Intermittent Loads.
ReferencesDewman, Slemon and Straughen, Power Semiconductor Drives, John Wiley and Sons
Kusko, Solid State DC Motor Drives, The MIT Press
Murphy, Thyristor Control of AC Motors, Pergamon Press
Krishnan, Electric Motor Drives: Modeling, Analysis, and Control, Prentice Hall
Bose, Power Electronics and AC Drives, Prentice Hall
Subrahmanyam, Thyristor Control of Electric Drives, Mc Graw-Hill
Rashid, Power Electronics: Circuits, Devices and Applications, Prentice Hall Power Electronics. Mohan, Undeland and Robbins, Converters, Applications and Design, 2nd Ed., John Wiley and Sons
Bose, Power Electronics and Variable Frequency Drives, IEEE Press
Lander, Power Electronics, 3rd. Ed., Mc Graw Hill. 

Course outline weekly

Week 1Introduction - Basic definitions for static dc and ac drives, classifications, and four-quadrant operation
Week 2The mechanical system
Week 3Mechanical load characteristics
Week 4Four quadrant drive characteristics
Week 5Definition of the speed control problem
Week 6Solid State DC Motor Speed Control : Single-phase drives
Week 7Solid State DC Motor Speed Control : Three-phase drives
Week 8Midterm Exam
Week 9Solid State AC Motor Speed Control : Voltage Control
Week 10Solid State AC Motor Speed Control : Frequency Control
Week 11Electric Braking, Electric Motor Starting
Week 12Selection of Drives, Intermittent Loads
Week 13Practical applications in the laboratory - DC Drives
Week 14Practical applications in the laboratory - AC Drives
Week 15Final exam
Week 16Final exam

Assesment methods

Course activitiesNumberPercentage
Field activities00
Specific practical training00
Final exam150
Percentage of semester activities contributing grade succes050
Percentage of final exam contributing grade succes050

Workload and ECTS calculation

Activities Number Duration (hour) Total Work Load
Course Duration (x14) 14 3 42
Laboratory 0 0 0
Specific practical training000
Field activities000
Study Hours Out of Class (Preliminary work, reinforcement, ect)14570
Presentation / Seminar Preparation000
Homework assignment4520
Midterms (Study duration)12525
Final Exam (Study duration) 12525
Total Workload3593212

Matrix Of The Course Learning Outcomes Versus Program Outcomes

D.9. Key Learning OutcomesContrubition level*
1. Has general and detailed knowledge in certain areas of Electrical and Electronics Engineering in addition to the required fundamental knowledge.   X 
2. Solves complex engineering problems which require high level of analysis and synthesis skills using theoretical and experimental knowledge in mathematics, sciences and Electrical and Electronics Engineering.   X 
3. Follows and interprets scientific literature and uses them efficiently for the solution of engineering problems.   X 
4. Designs and runs research projects, analyzes and interprets the results.   X 
5. Designs, plans, and manages high level research projects; leads multidiciplinary projects.  X  
6. Produces novel solutions for problems.   X 
7. Can analyze and interpret complex or missing data and use this skill in multidiciplinary projects.  X  
8. Follows technological developments, improves him/herself , easily adapts to new conditions.    X 
9. Is aware of ethical, social and environmental impacts of his/her work.    X
10. Can present his/her ideas and works in written and oral form effectively; uses English effectively  X  

*1 Lowest, 2 Low, 3 Average, 4 High, 5 Highest

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