Solar Car Ppt (1) 5e3c2j

G. H. Raisoni Institute of Engineering & Technology, Wagholi, Pune Department of Electrical Engineering

Seminar on

“Solar Car ” By,

Vaibhav Vivek Taware Guided By, Mrs.D.Agrawal

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content          

Components. Introduction. Solar Cells. Working of solar cells. Solar Array. Solar Tracker. Electric Motor. Battery. Speed Controller. Construction .

Introduction  Solar cars depend on pv cells to convert sunlight into

electricity.  When sunlight striker pv cells , they excite electrons and allow them to flow , creating the electric current .  Pv cells are made of semiconductor materials.

What is the solar car ?  A solar vehicle is an electric vehicle powered by a type of

renewable energy ,by solar energy obtained from solar s on the surface of the vehicle

Solar cells  A solar cells converts solar energy to electrical energy.  The most solar cells function by the photovoltaic effect .  “photo” means light and “voltaic” means electric current or

electricity.

 Power:- 200 Watt.  Voltage:- 24 Volt.  Current:- 8 Amp .  Dimensions:- 2.5 feet to 5 feet.

Working principle of solar cell  When sunlight falls on the pv cell ,it absorbs the energy

from photons and free the electrons from the semiconductor .  Photons in sunlight provide the energy that moves electron from one layer of a semi –conducting metallic wafer to another.  The movement of the electrons creates a current .  A flow of electron takes place which produces an electricity

Solar Array  The array is made up of many (often several hundred)

photovoltaic solar cells.  It collects the direct sun radiation and converts to electricity.  The power produced by the solar array varies depending on the weather, and the sun position.

Power trackers  Power trackers condition the electricity coming from the

solar array to maximize the power and deliver it either to the batteries for storage or to the motor controller.  When the solar array is charging the batteries ,the power trackers help to protect the batteries for being damaged by overcharging .

Electric motor  An electric motor is a device using electric energy to    

 

produce mechanical energy. An electric motor (Dc motor) is the basic and the most important part of a solar car . It is used to drive the wheel. The specifications of the motor are:Power: 6500 W Speed: 2000 rpm Voltage: 24V Current: 100 Amps

Battery  After the power tracker convert the energy to the energy

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that is usable for the car, it send to the battery then the battery store the energy . This energy is send to the motor and controller to make the car run. Lead – acid Battery is used in solar car . Lead- acid batteries are rechargeable battery . its low manufacturing cost . Voltage:- 24 volt Dc Current:-45 Amp

Speed controller  The purpose of a motor speed controller is to take a signal

representing the demanded speed , and to drive a motor at that speed.

Mechanism

Advantages  Reduced pollution .  Reduced energy cost.  Produce less noise .

 Unlimited source .

Disadvantages  High initial cost .  Lesser speed than regular car .  Less efficient in cloudy weather.

What will happen if there is no sunlight ?  If there is no sunlight ,the emergency batteries will be used

. Example in the situation that there was a large cloud cover the sky , this emergency batteries will be used.

Applications  It can be used places where ,fuel based vehicles are banned

due to production of pollution and noise.  In industry where small vehicles are used to perform light weight conveys work from one place to other place .

Conclusion  Solar car would be an amazing advancement in future car

technology .  They would allow free and pollution less travel with unlimited accessibility.

Reference:  www.wikipedia.com  www.solarcar.standford.edu  IEEE transaction papers

 http://ieeexplore.ieee.org

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