14-01-2011, 11:03 AM
Solar Powered Car.ppt (Size: 4.79 MB / Downloads: 661)
SUMIT SAURABH SHUKLA
TUSHAR KIRAN
ZEESHAN AHMAD ZAIDI
PEEYUSH TRIPATHI
PRASHANT DEEP
Power Requirement?
Input
One fully charged Li-ion battery pack, limited by 20Kg
Solar power from solar cells to charge battery
Output
Power motor with current (amps) to move solar car
Main Components
Solar-cell array mounted on the top roof of vehicle.
Power Point Tracker (PPT) – convert solar energy to charge batteries
Batteries – Li-ion cells (20Kg weight limit)
Motor system – 36 volts, 35.6 amps
Motor controller
SOLAR PANEL
A solar vehicle is an electric vehicle powered by solar electricity. This is obtained from solar panels on the surface (generally, the top or window) of the vehicle
solar panel is a packaged interconnected assembly of solar cells, also known as photovoltaic cells. Because a single solar panel can only produce a limited amount of power, many installations contain several panels.
Motor controller
A motor controller is a device that serves to govern the performance of an electric motor. A motor controller might include a manual or automatic means for starting and stopping the motor, selecting forward or reverse rotation, selecting and regulating the speed, regulating or limiting the torque, and protecting against overloads and faults.
Power point tracker
A power point tracker (or PPT) is a high efficiency DC to DC converter that presents an optimal electrical load to a solar panel or array and produces a voltage suitable for the load.
What is the Air-gap?
Small air-gap
strong magnetic flux
high torque
low velocity
Large air-gap
weak magnetic flux
low torque
high velocity
What does the Air-gap do?
It is the most crucial adjustor for motor performance.
It changes motor’s speed and torque output.