1. Power Electronics Lecture 1
Prof. Mohammed Zeki Khedher
Department of Electrical Engineering
University of Jordan 1

2. References for further information
Power Electronics
References for further information
Textbook: “ Power Electronics: Circuits, Devices and Applications”
By M. Rashid, Prentice-Hall.
References:
Power Electronics: Converters, Applications and Design By N. Mohan, T. Undeland, and W. Robins, John-Wiley.
Elements of Power Electronics By P. Krein, Oxford University Press.
Power Electronics By C. W. Lander, McGraw-Hill.
rinciple of Power Electronics By J. Kassakian, M. Schlecht and G. Verghses, Addison Wesley.
Power Electronics: Principles and Applications By J. Vithayathil, McGraw-Hill.
Power Semiconductor Circuits By Dewan and Straughen, John-Wiley. 2

3. The interdisciplinary nature

4. Relation with multiple disciplines
Power electronics is currently the most active discipline in electric power engineering.

5. History of Power Electronics
Mercury arc rectifier (year 1900).
Metal tank rectifier.
Grid controlled vacuum tube rectifier.
Ignitron, Phanatron, Thyratron
SCR (Silicon Controlled Rectifier)
- The 1st Thyristor developed by Bell labs in 1956.
1st Commercial grade SCR developed by
“ General Electric Co. “ in 1958. 5

6. 2. The history
The thread of the power electronics history is the break- through and evolution of power electronic devices. 返回

7. 1. HISTORY AND DEVELOPMENT
Mercury arc rectifier
Semiconductor rectifier

8. 1. HISTORY AND DEVELOPMENT
Thyratron
Thyristor (SCR), GTO, Triac

9. 1. HISTORY AND DEVELOPMENT
Vacuum tube
Power MOSFET, IGBT

10. Industrial applications
Motor drives
Electrolysis
Electroplating
Induction heating
Welding
Arc furnaces and ovens
Lighting

11. Transportation applications
Trains & locomotives
Subways
Trolley buses
Magnetic levitation
Electric vehicles
Automotive electronics
Ship power systems
Aircraft power systems

12. Utility systems applications
High- voltage dc transmission (HVDC)
Flexible ac transmission (FACTS)
Static VAR compensation & harmonics
Custom power & power quality control
Supplemental energy sources :
wind, photovoltaic, fuel cells
Energy storage systems.
Fuel cells.
Energy storage systems
Boiler feed water systems.

13. Power supplies for electronic equipment
Telecommunications
Computers
Office equipment
Electronic instruments
Portable or mobile electronics

14. Residential and home appliances
Lighting
Heating
Air conditioning
Refrigeration & freezers
Cooking
Cleaning
Entertaining

15. Applications in space technology
Spaceship power systems
Satellite power systems
Space vehicle power systems

16. Other applications Nuclear reactor control
Power systems for particle accelerators
Environmental engineering

17. Advantages Easy and flexibility in operation due to digital controls.
Power Electronics
Advantages
Easy and flexibility in operation due to digital controls.
Faster dynamic response compared to the electro mechanical converters.
Lower acoustic noise when compared to electro magnetic controllers, relays and contactors. 17

18. High efficiency due to low losses in the Thyristors.
Power Electronics
High efficiency due to low losses in the Thyristors.
Long life and reduced/minimal maintenance due to the absence of mechanical wear.
Control equipments using Thyristors are compact in size. 18

19. Disadvantages Generate unwanted harmonics.
Power Electronics
Disadvantages
Generate unwanted harmonics.
Harmonics are injected into power supply lines affecting the performance of other loads and equipments.
Unwanted interference with communication circuits due to electromagnetic radiation. 19

20. Thyristors must be rated for maximum loading conditions.
Power Electronics
Special protection circuits must be used to protect the thyristor devices.
Thyristors must be rated for maximum loading conditions.
Special steps are to be taken for correcting line supply power factor. 20

21. Major issues in power electronics
How to meet the requirement of the load or gain better control of the load
How to improve the efficiency
To have reliable operation of power semiconductor devices
To have energy saving
How to realize power conversion with less volume, less weight, and less cost.
How to reduce negative influence to other equipment in the electric power system and to the electromagnetic environment.

22. Power Devices Power Diode Power BJT Power MOSFET IGBT Thyristor (SCR)
Power Electronics
Power Devices
Power Diode
Power BJT
Power MOSFET
IGBT
Thyristor (SCR) 22

23. Power Electronics 23

24. Applications of Power Devices
Power Electronics
Applications of Power Devices 24