IEEE Electrification Magazine - June 2020 - 58
not affected. For different foreign objects, the coupling
capacitances are also simulated. Further experiments are
also consistent with the FEM analysis simulation. Therefore, it can be concluded that the proposed dynamic CPT
system is robust to foreign objects and can be applied in
different conditions.
Because CPT technology has very good misalignment
capability (the effective charging width can reach 40 in),
which is sufficient to maintain effective power transfer
to moving vehicles. As metal plates have high reliability
and are well connected inside the roadway, they do not
need frequent maintenance.
The practical implementation of the proposed electric
roadway system is depicted in Figure 11. On the lowspeed electric roadway, vehicles can easily pick up power
in slow-moving status. In addition, the high-power stationary charging system can be combined with the
dynamic system at the traffic-light position, and the vehicle can acquire extra power in waiting status. In this way,
Transfer to Practice
With the development of CPT technology in the past few
years, it has been well prepared for application to
dynamic charging on electric roadways. In practical
implementations, to reduce the construction cost, the
width of the electric pavement can be limited (e.g., to 20 in).
Dynamic Charging Track
(Driving Status)
Stationary Charging Pad
(Waiting Status)
High-Power Bus Charging
(Passenger Loading Time)
(a)
Not All the Pavement Is
Covered in the Electric Form
Fast Charging
of Buses
Speed v = 60 mi/h
Regular Charging
for Compact Cars
Electric Pavement Is in
the Fast Lane for Charging
The Slow Lane Is for
Regular Driving
(b)
Figure 11. The practical implementation of the proposed electric roadway system used to achieve dynamic CPT charging for electric vehicles.
(a) A low-speed electric roadway with a traffic light system and (b) a high-speed electric roadway on a highway system.
58
I E E E E l e c t r i f i cati o n M agaz ine / J UN E 2020
IEEE Electrification Magazine - June 2020
Table of Contents for the Digital Edition of IEEE Electrification Magazine - June 2020
Contents
IEEE Electrification Magazine - June 2020 - Cover1
IEEE Electrification Magazine - June 2020 - Cover2
IEEE Electrification Magazine - June 2020 - Contents
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