mppt charge controller
TRANSCRIPT
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BY,Darshan Simha K.J.Darshan CUnder the guidance ofDr. T.C. Manjunath
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INTRODUCTIONNeed For Renewable EnergyRenewable energy is the energy which comes
from natural resources such as sunlight, wind, rain , tides and geothermal heat.
Renewable resources can be naturally replenished
These resources can be considered to be inexhaustible
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SOURCES OF RENEWABLE ENERGYWIND POWER SOLAR POWERBIOMASS GEOTHERMAL
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BLOCK DIAGRAM
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What is MPPT? It is an electronic system that operates
the Photovoltaic (PV) modules in a manner
that allows the modules to produce all the
power they are capable of. MPPT is not a
mechanical tracking system that
“physically moves”.
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How does an MPPT work?
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FEATURES OF MPPT?It forces MPPT to draw maximum available
powerIt allows user to draw a higher voltage
compared to other charge controllersE.g.: Small Water Turbines
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Comparison Between MPPT And A PWM Controller
9.40-10.40am
11am-12pm 12.15-1.15pm 1.30-2.30pm 3.30-4.30pm
PWM
30Wh
PWM
35Wh
PWM34Wh
PWM
29Wh
PWM15Wh
MPPT
30Wh(Sunny)
MPPT
40Wh(Sunny)
MPPT
44Wh(Cloudy)
MPPT
32Wh(Cloudy)
MPPT
23Wh(Cloudy)
PWM
25Wh
PWM
35Wh
PWM
40Wh
PWM
32Wh
PWM
20Wh
MPPT
30Wh(Cloudy)
MPPT
40Wh(Sunny)
MPPT45Wh(Sunny)
MPPT35Wh (Sunny)
MPPT
25Wh (Sunny)
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Battery Charging Modes
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What is PSoC? PSoC - Programmable System on Chip
It includes digital and analog
programmable blocks, which allow
implementation of large number of
peripherals.
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PSoC System Overview
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Features Of PSoC MAC Unit, hardware 8*8 multiplication with
result stored in 32 bit accumulator.
Changeable working voltage 3.3V to 5V
Possibility of small voltage supply to 1V
Programmable frequency choice.
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DESIGNING Of PSoCDEVICE EDITORAPPLICATION EDITOR
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Device Editor
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Interconnection View
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Application Editor
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Comparison With Other Charge ControllersFeatures of MPPT is rich compared to other
controllers
Efficiency is 15 % and 30% more than other charge controllers during sunny and low light conditions
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LIMITATIONSIncrease in initial cost
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CONCLUSIONIt is a single chip solution for battery
charging method and driving LED’S.Charging efficiency and thereby life span of
the battery is improved
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REFERENCES
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