ECE 483-4

POWER ELECTRONICS

 

Instructor:                               Professor C.J Hatziadoniu hatz@siu.edu, ENGR-E 221, 453-7036

Office hours:                                     MWF 11:00-12:00A, ENGE-221.

Teaching assistant:                  Elashry

Web site:                                  http://www.engr.siu.edu/staff1/hatz/EE483[1]

Lectures:                                 MWF 2:00-2:50 PM ENGR-A310

Prerequisite:                            ECE385

Text:                                        "Power Electronics: circuits, devices and applications", third edition, by M.H. Rashid, Prentice Hall, 2004.

 

Course Objectives.

Introduction to power electronic devices, converters and applications.

 

Course Topics.

Power semiconductor devices: dynamic and static characteristics, protection; AC/DC conversion: diode circuits and rectifiers, line commutation, thyristor rectifiers, harmonics; DC/DC conversion: power transistors, chopper circuits, power supplies; DC/AC conversion: forced commutation, inverters, PWM schemes, harmonics; Drives: dc and ac drives.

 

Grading.

Homework (some problems will require the use of MATLAB and SIMULINK):    25 points

Two design projects:               2x25 points

Final exam (selected topics):   25 points

 

Grade Scale.

A(100-90), B(89-80), C(79-70), D(69-50), F(49-0)[2].

 

 

 

 

 

 

 

Class assignments must be returned on time. Late returns will be penalized by a 10% point deduction per day unless a valid reason exists (illness, family emergencies, etc).

 

All class work is subjected to academic standards. Copying or plagiarizing will result in one or more of the following depending on the severity: a zero to the assignment, a drop by one letter in the final course grade, a failing grade for the course, reporting the incident to the university.

 

 

Topics by Lecture

Text: “Power Electronics: circuits devices and applications” by M. Rashid, Pearson Prentice Hall, third edition. (44 class meetings)

 

UNIT 1

  1. Introduction to the Class; Course overview.
  2. Power Semiconductors and Diodes: Diode characteristics, recovery dynamics; diode types, diode models; current and voltage sharing, snubber circuits (2.1-2.8).
  3. Diode Rectifiers: Single-phase, half-wave rectifiers, performance parameters, harmonics; continuous discontinuous conduction (3.1-3.3).
  4. Single-phase full-wave rectifiers: performance analysis, harmonics, continuous and discontinuous conduction (3.4-3.5).
  5. Rectifier circuit design: Ratings; ripple reduction, dc filters, L and C filters (3.10-3.12).
  6. Multi-phase rectifiers, star rectifiers; three-phase bridge rectifiers; performance, RL load, harmonics (3.6-3.9).
  7. Thyristors: Characteristics, turn-on and turn-off dynamics; thyristor types, GTO, MCT (7.1-7.6).
  8.  Controlled Rectifiers: phase control, single-phase full converter with R load, performance (10.1-10.3).
  9. Single-phase full converter with an RL load (10.3).
  10. Three-Phase half-wave Converter (10.5). Three-phase full converter, performance (10.6).
  11. Review of the Fourier series, power converter harmonics.
  12. Power Transistors: brief overview of BJT, MOSFET, IGBT: characteristics of BJT (4.1-4.2); MOSFET characteristics (4.3); IGBT characteristics (4.6); series and parallel operation, protection, models (4.7-4.9).
  13. DC-DC Converters: Step-down operation, duty cycle, converter with RL load (5.1-5.3).
  14. Step-up operation: converter with R load, performance (5.4-5.6).
  15. DC-DC Converters: Converter classification (5.7).
  16. Switching mode regulators: Buck regulators, boost regulators (5.8). Examples.
  17. Buck-boost regulator (5.8). Example.
  18. Cuk regulator; multi-output boost converters, rectifier-fed boost converters (5.9-5.11).
  19. Chopper circuit design (5.12), examples.

UNIT 2

  1. DC Power Supplies fly-back converter (14.1-14.2).
  2. DC power supplies: forward converter, push-pool converter (14.2).
  3. DC power supplies: Half-bridge, full-bridge and bidirectional power supplies (14.2).
  4. DC-AC Conversion: The half-bridge inverter, principle of operation, resistive, lagging and leading load, harmonics (6.1-6.3).
  5. The full-bridge inverters, single 180- and 120-deg conduction (6.4, 6.5.1, 6.5.2).
  6. Single-pulse width modulation for the full-bridge inverter, (6.6.1). Examples.
  7. Multiple and sinusoidal-pulse-width modulation unipolar output (6.6.2, 3).
  8. Three-phase half-bridge inverters, square pulse and PWM schemes (6.8.1-3)
  9. Examples—three-phase inverters.
  10. AC Power Supplies: Switched-mode supplies; multistage conversions (14.3-14.4).
  11. Three-phase supplies. Control and protection issues (notes).
  12. Examples
  13. Drives: DC Drives, control of the shunt dc motor (15.1-15.3 and notes).
  14. Single-phase dc drives (15.4)
  15. Examples
  16. AC Drives: Induction motor performance characteristics, model equations (16.1-16.2).
  17. Induction motor control: Stator voltage control (16.2).
  18. Frequency and voltage-frequency control (16.2).
  19. Rotor voltage control, static Kramer drive (16.2).
  20. Closed-Loop Control: overview of scalar and vector control methods (16.3-16.4).
  21. Examples
  22. Exam Review
  23. Final Exam (May 7)

 


[1] This web site contains power point presentation of most of the topics that will be covered in the class.

[2] IMPORTANT NOTE: Please be advised that only work with a grade assigned by the instructor of record, C.J. Hatziadoniu, will count towards your final grade for these courses (ECE 483 and ECE 583).