Engi 6856   Power Electronics

Fall 2011

 

Instructor:  Tariq Iqbal, Faculty of Engineering and Applied Science, Memorial University of Newfoundland. Email: tariq@mun.ca 

 

Website:  A D2L based course website is available at https://online.mun.ca/  The course website contains latest course information, copies of overheads used in the class, labs detail, datasheets and assignments.

                           

Reference books:

1.     Power Electronics: Converters, Applications and Design, 3rd edition, Mohan N. and Robbins W.P. T.M., 2003 (ISBN: 0-471-22693-9)

2.     Interactive Power Electronics Online Course available at http://services.eng.uts.edu.au/~venkat/pe_html/contents.htm

3.     Power electronics: Circuits, devices and Applications, M. H. Rashid, Prentice Hall, 2004 (ISBN 0131011405)

4.     Modern Power electronics and AC drives, Bose, B.K., Prentice Hall, 2002. (ISBN 0130167436)

 

Course Description:

This course provides an introduction to power electronics and its applications. The broad objective of the course is to teach students energy conversion and processing using power electronic converters.  It aims to develop student knowledge and understanding of power devices; converters and teach students apply their mathematical skills and knowledge of electronics to a number of practical problems. At the end of this course students will be able to explain working of various power devices and power converters, derive converters mathematical relations, analyze and design electronics for the control of energy converters. Laboratory exercises are basically guided design problems. Extensive use of Multisim and Matlab is also included in the course.

 

Course Outline:

  1. Introduction to power devices including single carrier devices, mixed carrier devices and two carrier devices.
  2. Power device driver circuits, introduction to PICs, HVICs and gate driver ICs.
  3. Principles of energy converters including uncontrolled converters, single phase controlled converters and control of single-phase converters.
  4. Poly-phase AC-DC converters and control of poly-phase converters.
  5. Single-phase voltage source inverters and their control.
  6. Voltage source 3-phase bridge inverters.
  7. Control of square wave inverters.
  8. Isolated power supply design and grounding issues in power electronics.
  9. Pulse width modulation techniques and generation of PWM signals using analog and digital electronics.
  10. Programmed PWM techniques and resulting harmonics.
  11. Switched mode DC-DC converters, buck converter, boost converter and buck-boost converter.
  12. Introduction to snubber circuits, thermal models and heat sink design.

 

Course Schedule:

Lectures: Three lectures per week. Monday, Wednesday and Friday, 9:00am to 9:50am in the Room En1003.

Office time:  Tuesday 12:01pm to 2:00pm + you are welcome any time in my office En3062.

Assignments due dates: A1 (Sept. 30), A2 (Oct. 13), A3 (Oct. 28), A4 (Nov. 10), A5 (Nov. 25)

Labs: Every Monday from 2-5pm in En1021.

 

Evaluation Scheme:

Midterm Test (Oct. 21)                       20 %

Final Exam                                          50 %

Laboratory (7)                                      20 %

Assignments (5)                                   10 %

 

 

Labs:  There are seven labs in this course that will take ten weeks to complete. Some detail is given below. More detail of these labs will be explained in the class.

 

Lab1: Study a three phase bridge rectifier with a resistive, an inductive and a capacitive load. (Week 2)

Lab2: Determine a linear regulator characteristic curve for a resistive and an inductive load. (Week 3)

Lab3: Design and develop a TRIAC based speed controller for a universal motor. (Week 4-5)

Lab4: Design and develop a PIC16F684 based DC motor speed controller with a reversible direction input. (Week 6-7)

Lab5: Design and develop a PIC16F684 based DC motor position control system. (Week 8-9)

Lab6: Program a PIC16F684 to generate Sine-PWM waveforms required for a single-phase inverter. (Week 10)

Lab7: Design and develop a PIC16F684 based 5V to 12V boost converter. (Week 11)

 

Academic Integrity: Students are expected to conduct themselves in all aspects of the course at the highest level of academic integrity. Any work for which the student is claiming credit should be original work and the source of any submitted material which is not original must be given proper credit. Any student found to commit academic misconduct will be dealt with according to the Faculty and University practices.