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This PPT is used to explain about Automatic Sun Tracking System for Street Light Application. From this we can make Sun as source and produce energy...
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Automatic Sun Tracking System for Street light applications
By
M R Rahul Raj
Aim of the ProjectAim of the Project Implementation of the automatic street light application Implementation of the automatic street light application
by using solar panel using efficient power management by using solar panel using efficient power management concept.concept.
Solar energy is the most readily available source of Solar energy is the most readily available source of energy. It is free. It is also the most important of the energy. It is free. It is also the most important of the non-conventional sources of energy because it is non-non-conventional sources of energy because it is non-polluting.polluting.
By using PSoC microcontroller we can control the By using PSoC microcontroller we can control the system to capture the maximum energy from sun light system to capture the maximum energy from sun light in day time.in day time.
Basic Principle of DesignBasic Principle of Design Solar photo voltaic (SPV). Can be used to generate electricity form the Solar photo voltaic (SPV). Can be used to generate electricity form the
sun.sun.
Silicon solar cells play an important role in generation of electricity. Silicon solar cells play an important role in generation of electricity.
While the output of solar cells depends on the intensity of sunlight and While the output of solar cells depends on the intensity of sunlight and the angle of incidence. The solar panels must remain in front of sun the angle of incidence. The solar panels must remain in front of sun during the whole day. during the whole day.
But due to rotation of earth those panels can’t maintain their position But due to rotation of earth those panels can’t maintain their position always in front of sun. This problem results in decrease of their always in front of sun. This problem results in decrease of their efficiency. efficiency.
Thus to get a constant output, we are implementing an automated Thus to get a constant output, we are implementing an automated system which should be capable to constantly rotate the solar panel.system which should be capable to constantly rotate the solar panel.
Existing MethodsExisting Methods Microcontroller based systems can be existing but they Microcontroller based systems can be existing but they
don’t have Automatic Sun Tracking System by getting the don’t have Automatic Sun Tracking System by getting the maximum power in the day time.maximum power in the day time.
By using the PSoC Microcontroller we are overcome the By using the PSoC Microcontroller we are overcome the above problem and make the system intelligently according above problem and make the system intelligently according to our requirements with a less complexity .to our requirements with a less complexity .
Proposed SolutionProposed Solution Using PSoC microcontroller we can implement the intelligent Using PSoC microcontroller we can implement the intelligent
system.system.
The unique feature of this system is that instead of taking the earth The unique feature of this system is that instead of taking the earth as its reference, it takes the sun as a guiding source. By using RTC as its reference, it takes the sun as a guiding source. By using RTC constantly monitor the sunlight and rotate the panel towards the constantly monitor the sunlight and rotate the panel towards the direction where the intensity of sunlight is maximum.direction where the intensity of sunlight is maximum.
The hardware complexity is also simple and we can reduce cost The hardware complexity is also simple and we can reduce cost
SpecificationsSpecifications PSoC CY8C29466 24PXI Powerful Harvard PSoC CY8C29466 24PXI Powerful Harvard
Architecture Processor and M8C Processor Speeds Architecture Processor and M8C Processor Speeds to 24 MHzto 24 MHz
In-System Serial Programming (ISSP)In-System Serial Programming (ISSP) Low Power at High SpeedLow Power at High Speed 3.0V to 5.25V Operating Voltage.3.0V to 5.25V Operating Voltage. Solar Panel Specifications:Solar Panel Specifications:
5 watts power5 watts power 16 V output voltage 16 V output voltage 300 mA current300 mA current
Automatic Sun Tracking SystemAutomatic Sun Tracking System using PSoCusing PSoC
Basic Block Diagram
PSoC
Mechanicalarrangement
Geared motor Driver
LCD DisplayRTC
Solar PanelBattery
+5 V
Light Sensor
Voltage sensor
Sensor unit
TOOLSTOOLS
Hardware ToolsHardware Tools
PSoC Microcontroller unitPSoC Microcontroller unit
Solar panelSolar panel
Geared motorGeared motor
Mechanical item to drive the solar panelsMechanical item to drive the solar panels
LCD Display.LCD Display.
Software ToolsSoftware Tools
PSOC Designer IDE for PSoC microcontroller PSOC Designer IDE for PSoC microcontroller Programming.Programming.
PSoC Mixed-Signal Array PSoC Mixed-Signal Array MicrocontrollerMicrocontroller
The PSoC Mixed-Signal Array microcontroller are The PSoC Mixed-Signal Array microcontroller are designed to replace multiple traditional MCU-based designed to replace multiple traditional MCU-based system components with one, low cost single-chip system components with one, low cost single-chip programmable device.programmable device.
PSoC devices include configurable blocks of analog PSoC devices include configurable blocks of analog and digital logic, as well as programmable and digital logic, as well as programmable interconnects. interconnects.
The basic function of PSoC Microcontroller is read The basic function of PSoC Microcontroller is read the time from RTC according to that time it set the the time from RTC according to that time it set the angle of the solar panel.angle of the solar panel.
To that it can drive the steeper motor according to To that it can drive the steeper motor according to where the maximum energy we are getting Also where the maximum energy we are getting Also send the data for displaying purpose to LCDsend the data for displaying purpose to LCD
PSoC= Programmable System-on-Chip
Solar PanelSolar Panel Solar photo voltaic (SPV). Can be used to generate electricity form Solar photo voltaic (SPV). Can be used to generate electricity form
the sun.the sun. Silicon solar cells play an important role in generation of electricity.Silicon solar cells play an important role in generation of electricity. Solar cells Characteristics.Solar cells Characteristics.
Isc-short circuit current.Isc-short circuit current. Voc-open circuit voltage.Voc-open circuit voltage. Peak power.Peak power.
Isc
How solar cells Generate electricityHow solar cells Generate electricity
From Cells to ModulesFrom Cells to Modules The open circuit voltage of a single The open circuit voltage of a single
solar cell is approx 0.5V.solar cell is approx 0.5V.
Much higher voltage is required for Much higher voltage is required for practical application.practical application.
Solar cells are connected in series to Solar cells are connected in series to increase its open circuit voltage.increase its open circuit voltage.
RTC (Real Time Clock )RTC (Real Time Clock ) Real time clock counts seconds, minutes, hours, date Real time clock counts seconds, minutes, hours, date
of the month, month, day of the week, and year with of the month, month, day of the week, and year with leap year compensation valid up to 2100leap year compensation valid up to 2100
Consumes less than 500nA in battery backup mode Consumes less than 500nA in battery backup mode with oscillator runningwith oscillator running
The date and time collected PSoC Microcontroller The date and time collected PSoC Microcontroller using 2-wire serial interface (I2C Protocol) for using 2-wire serial interface (I2C Protocol) for attendance purpose.attendance purpose.
LCD DisplayLCD Display
This module used for display the present status of This module used for display the present status of the system.the system.
This is interface to 4 bit mode with PSoC This is interface to 4 bit mode with PSoC microcontrollermicrocontroller
Applications Applications
Street light applications with out using Street light applications with out using normal power supplies.normal power supplies.
In Remote areas implementing a small In Remote areas implementing a small power systems units at each home.power systems units at each home.
Using this system to getting hot waterUsing this system to getting hot water
AdvantagesAdvantages The advantage of this unit is that to run the system The advantage of this unit is that to run the system
it does not need computer it does not need computer Solar cells directly convert the solar radiation into Solar cells directly convert the solar radiation into
electricity using photovoltaic effect without going electricity using photovoltaic effect without going through a thermal process.through a thermal process.
During the winter the sun has a low position , During the winter the sun has a low position , tracking angle from sunrise to sunset is shortened.tracking angle from sunrise to sunset is shortened.
The plant will not driven up to the final position The plant will not driven up to the final position but just to that position at which really sets, but just to that position at which really sets, therefore saving of power.therefore saving of power.
Depending on the radiation intensity, it may sinks Depending on the radiation intensity, it may sinks under a predefined value for instance at dusk , under a predefined value for instance at dusk , when the sky is cloudy, tracking is interrupted.when the sky is cloudy, tracking is interrupted.
LimitationsLimitations Using this system at a time we can controls only Using this system at a time we can controls only
one solar panel.one solar panel.
Higher hardware expenditureHigher hardware expenditure
Thank YouThank You