MPPT Charge Controller

BY,Darshan Simha K.J.Darshan CUnder the guidance ofDr. T.C. Manjunath

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

SOURCES OF RENEWABLE ENERGYWIND POWER SOLAR POWERBIOMASS GEOTHERMAL

BLOCK DIAGRAM

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”.

How does an MPPT work?

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

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)

Battery Charging Modes

What is PSoC? PSoC - Programmable System on Chip

It includes digital and analog

programmable blocks, which allow

implementation of large number of

peripherals.

PSoC System Overview

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.

DESIGNING Of PSoCDEVICE EDITORAPPLICATION EDITOR

Device Editor

Interconnection View

Application Editor

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

LIMITATIONSIncrease in initial cost

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

REFERENCES