1. Introduction to Electrification of Transportation
Dr. Shuo Wang
Power Electronics and Electrical Power Research Lab
University of Florida
Feb. 25, 2015

2. Why Electrification of Transportation?
Oil Crisis
50 years
Source: IEEE-USA 2012

3. Low Energy Efficiency of Conventional Vehicles
Source: ECCE 2011

4. Environmental Issues Greenhouse effect Air Pollution (Freon)
Carbon dioxide CO2

5. Oil Crisis
50 years

6. Customer Comfort Bullet Train
More smooth, more quiet and more comfortable (more electric aircraft)

7. Hybrid and Electric Vehicles

8. What is Power Electronics?
Power electronics is the applications of solid-state electronics for the control and conversion of electric power
(AC: Alternating current, DC: Direct current)
AC-DC
Adapter PC
DC/DC module
DC-DC
Data center
DC-AC
Grid tied inverter
Alternative Energy
AC-AC
Generator
Aircraft

9. Power Electronics Research on Hybrid and Electric Vehicles
EV Battery Charging: DC/DC Converter
Motor Drive: DC/AC Inverter
Starter Generator: AC/DC-DC/AC Bidirectional Inverter
Electric Machines

10. Hybrid Electric Vehicles Types
Source: ECCE 2011

11. Electrification Technologies
Source: ECCE 2011

12. Trend of Electrification of Vehicles
Source: ECCE 2011

13. Trend of Electrification of Vehicles
Source: ECCE 2011

14. EV and HEV are to be very Popular in 20-30 Years
60%
EV and HEV’s share on light duty vehicle market
2010
2030
US will build a charging station network to adapt this trend

15. Electric Charging Stations
Conventional Functions:
Charge your EV battery
Sell energy from your EV battery to grid
Charging Time
15-20 Hours
3-10 Hours
<½ Hours
(<1.5kW)
(50kW)
(5-10kW)
Charging Power
Level 3

16. Renewable energy sources Multifunctional EV fast charging station
Future Electric Vehicle Charging Systems
Renewable energy sources
Energy storage
Communications
Cloud computing
data center 4G
Sensors
Multifunctional EV fast charging station
Electric vehicle
Medium voltage grid

17. An EV charging Station Network in a Metro Area

18. Future Green, High Speed Train is Powered by Electricity
Overhead power line
Pantograph
(Overhead contact)
Onboard energy storage
More than 300 miles/hour

19. Introduction to Electric Train

20. More Electric and All Electric Aircraft

21. Trend of Electrification of Aircraft
Source: IEEE-USA 2012

22. Trend and Issues of Electrification of Aircraft
PEEPRL is working on them
Source: IEEE-USA 2012

23. Integrated Electrical Power Systems
Source: IEEE-USA 2012

24. Smart and Green Power
Source: IEEE-USA 2012

25. More Electric Airplanes
Source:

26. Comparison of Conventional and More Electric Airplane
Source:

27. Questions?