Introduction to Electrification
of Transportation
Dr. Shuo Wang
Power Electronics and Electrical Power Research Lab
University of Florida
Feb. 25, 2015
1
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
Why Electrification of Transportation?
Oil Crisis
50 years
Source: IEEE-USA 2012
2
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
Low Energy Efficiency of Conventional Vehicles
Source: ECCE 2011
3
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
Environmental Issues
Greenhouse effect
Air Pollution
(Freon)
Carbon dioxide CO2
4
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
Oil Crisis
50 years
5
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
Customer Comfort
Bullet Train
More smooth, more quiet and
more comfortable (more electric
aircraft)
6
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
Hybrid and Electric Vehicles
7
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
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
DC/DC module
Data center
DC-AC
AC-AC
Grid tied inverter
Generator
Alternative Energy
Aircraft
8
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
Power Electronics Research on Hybrid and
Electric Vehicles
1.
2.
3.
4.
EV Battery Charging: DC/DC Converter
Motor Drive: DC/AC Inverter
Starter Generator: AC/DC-DC/AC Bidirectional Inverter
Electric Machines
9
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
Hybrid Electric Vehicles Types
Source: ECCE 2011
10
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
Electrification Technologies
Source: ECCE 2011
11
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
Trend of Electrification of Vehicles
Source: ECCE 2011
12
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
Trend of Electrification of Vehicles
Source: ECCE 2011
13
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
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
14
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
Electric Charging Stations
Conventional Functions:
1) Charge your EV battery
2) Sell energy from your EV battery
to grid
Charging Power
(<1.5kW)
Level 3
Charging Time
15-20 Hours
(5-10kW)
3-10 Hours
(50kW)
<½ Hours
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
15
Future Electric Vehicle Charging Systems
4G
Cloud
computing
data center
Electric vehicle
Multifunctional EV
fast charging station
Renewable energy
sources
Communications
Sensors
Energy storage
Medium
voltage
grid
16
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
An EV charging Station Network in a Metro Area
17
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
Future Green, High Speed Train
is Powered by Electricity
Overhead power line
Pantograph
(Overhead contact)
More than 300 miles/hour
Onboard energy storage
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
Introduction to Electric Train
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
More Electric and All Electric Aircraft
20
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
Trend of Electrification of Aircraft
Source: IEEE-USA 2012
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
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Trend and Issues of Electrification of Aircraft
PEEPRL is
working on
them
Source: IEEE-USA 2012
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
22
Integrated Electrical Power Systems
Source: IEEE-USA 2012
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
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Smart and Green Power
Source: IEEE-USA 2012
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
24
More Electric Airplanes
Source: www.safran-group.com
25
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
Comparison of Conventional and More
Electric Airplane
Source: http://www.scribd.com
Power Electronics and Electrical Power Research Laboratory (PEEPRL)
26
Questions?
27
Power Electronics and Electrical Power Research Laboratory (PEEPRL)