Wireless power transfer (WPT) systems for electric vehicles (EVs) are
convenient and safe. In these systems, the inverter generates a high-frequency current
and strong magnetic field, which are transferred to a primary compensated network.
Simultaneously, the load absorbs power through a pickup compensated network,
rectifier, and filter. Two types of WPT charging systems exist: static and dynamic. A
static battery charging system stores considerable power during battery charging. This
vehicle can be traveled over a long distance by using a heavy electric storage system.
For example, the Tesla Model-S electric storage system, which weighs approximately
900 kg, can transfer power of up to 85 kWh, resulting in a driving range of 400 miles.
However, a heavy electric storage system has low efficiency and causes pollution. A
dynamic battery charging system has a smaller battery, lower weight, and higher
efficiency than a static charging system. However, dynamic battery charging systems
must be supported by integrated infrastructure, such as numerous grounded chargers.
The source of power for static and dynamic charging is the power grid. Grid power
mainly originates from centralized power factories, which generate power and
emissions through the burning of fossil fuels. Renewable energy sources for powering
EVs include sunlight, wind, rain droplets, static electricity, free lifting force, and
regenerative brakes during driving. These renewable power source can be developed
over the next decade years.
Keywords: Dynamic battery charging system, Emissions, Geenhouse effect, Regenerative brake, Renewable power sources, Static battery charging system.