Designing a Solar Power Generation System for Homes Using MATLAB Simulink

in this video we are designing the solar power generation for home using Matlab Sim link before going to design let's

see what are the elements required for solar powered home so if you take the solar panel here nothing but the PV

panel we are getting the direct power from this solar panel right so if you give the solar panel input as radiation

and temperature then you will get the DCS output okay but here we are taking the the solar power generations to home

right so if you take this is home or home's required what we want two fortivus AC Supply rate but here in

solar we are getting the DC so to convert this DC to AC we must require the power electronic device nothing but

inverter right so we need to connect inverter right so here I am taking the inverter this inverter can convert this

DC to AC not AC it's just convert the pulsating LC only means if you give the direct current here then you are getting

the pulsating issue only not being accuracy but our home required the puracy so to convert this pulsating AC

to puracy again we need to connect a passive filter okay you need to connect a passive filter is nothing but the LC

filter LCL filter whatever it may be you can take give it to the your home here we are getting the pulsating ec2 pure AC

if you connect the passive filter okay but the thing is in solar the output DC is depending on temperature and

irradiation right so here in atmosphere temperature is not constant it is varying from morning to evening right in

afternoon time only we are getting the maximum power okay but in morning time and evening time we are getting the low

power right but at any time we need to give the load to constant Supply so we need to give 240 ohm Supply 24 hours but

in solar panel we are getting the maximum power only at afternoon in morning time in evening time or in Cloud

it is we are not getting the exact output okay so further purpose we need to boost up the voltage okay we need to

increase the voltage whenever you are not getting the much voltage from solar panel due to Cloud it is or rainy time

okay so here connect the Boost converter okay because at some time we are not getting the exact voltage required for

the Grid or load so to meet the load we need to connect a boost converter okay actually after converting the pure AC

you can also connect Transformer also to step up the voltage okay if you connect the Transformer here then no need to

connect the Boost converter here these two operations are same here also we are increasing the voltage and here also we

are increasing the voltage by using the Step up Transformer but when compared to these two boost converter and

Transformer Transformer have so much cost and require more space but here in boost converter just the inductor and

single diode with help of switch you can design okay when compared to Transformer this boost converter designing is very

simple that's why I am not connecting the Step up Transformer here I am only taking the Boost converter before

inverter okay but the ultimate thing is we need to increase the voltage that is the reason behind why we are connecting

the Boost converter here so here in boost computer we have switches right and this inverter also we are having the

switches so to turn on and to turn off the switches we need to give a pulses so we also take a first generation also for

this inverter switches and this boost converter switch that's it these are the elements required for our solar power

generation and we need to take a capacitor between solar panel and this bush converter why because here in solar

we are not getting the continuous Supply okay it is varying so to reduce the that reproves factor so now let's crank this

circuit in Matlab [Music] [Music]

now open your Matlab after opening Matlab click on Sim link now open library to take the elements so here you

can take the elements what we required stuff take solar panel in simscape simple systems special Technologies

Renewables you can get the PV array so we add this block and what we need we need to give a irradiation and

temperature right so take the constant to give the irrigation temperature values and also take the scope it is

useful for The observed waveforms elements in elements take the RSA Branch for capacitor and inductors and go to

products and take a diode and igbt with diode switch and units will Bridge also for Designing the inverter and boost

converter and we also take a pass generators right so go to pulse and Signal generator so here you can get the

pwm generator to give the pulses to inverter so for Boost converter you can take the Pulse generator so in sources

you can get the position writer so now take the voltage measurement for measuring the voltage in measurements

you can get the voltage environment to measure the voltage and last but not least take the power GUI graphical user

interface without this one we can't run the circuit okay now take all the elements and design the circuit as per

our circuit diagram so first of all what we need we need a solar panel right so take the solar panel here and give it to

the irritational temperature values right take constant and give it to this one and take the constant and give it to

this one here IR means here this is IR right means irritation here team is temperature so take the radiation by

1500 and here I am taking the temperature like 25 and give it to the 1 capacitor right so take the RC branch

and Ctrl R command to rotate this one and take the capacitor C and give the value is like nothing but

0.006 sir it's okay and give it to the solar panel post on need to decrease the Ripple Factor we are taking the

capacitor here because this capacitor does not allow the certain changes to protect the remaining recruit we are

taking the capacitor okay so and then what we need here after the capacitor we need to connect a boost converter right

so this is the Boost converter diagram looks like inductor diode and switch okay so take the inductor right click

and drag and rotate this one take the inductor and give this inductor values nothing but 0.02 Henry and after that

connect the diode and connect the switch here for Designing the Boost converter and connect the another capacitor here

so these four makes the bush converter and give value is same 0.006 and now after boost up the voltage our home

required the ac voltage right so that's why I am taking the inverter here this Universal Bridge connects the inverter

so here input is a b c means this is a three-phase AC so this plus and minus indicates the DC terminals here DC has

the input and AC is the output so means we need to flip this block because this DC One this set and this AC wants that

side okay so right click and rotate and flip and flip block and you can also use the camera control light to flip this

one that's it and take the two Bridge because we are taking only single phase click on this one and take the two

Bridge arms because we are taking only single phase and also take the switches like kgbt okay now connect these two and

finally turn this to AC load I am taking the resistance load and give it here that's it here you can get the AC output

and to give the pulses of this inverter take the pwm generator to level and click on this one and use internal

generation only and take here 0.8 percent modulation and here our bridge is only single phase right that's why

take the single phase full Bridge four pulses click on OK then give it to the this gate pulses so now to measure the

output voltage take the voltage measurement connect parallel to load because how we are connecting voltmeter

in our laboratory same like that you can also crank voltage measurement here and give it to the scope to see the

waveforms give this first generation to this switch also this igbt with mass weight also a directional switch rate

this switch also needs a pulse generation to turn Foreigner here take the IMs 1 by 1500

why because here they're mentioning that time in seconds but we know the switching frequency only so here I am

taking the 1500 edges frequency means time is equal to 1 by of right that's why I'm taking that t is equal to 1 by f

1 by f means this 1500 okay and I am taking the passive modulation is 50 and you can also take the voltage

measurement here also to measure the solar panel output voltage what we are getting before boosting and take the

scope here to see the waveforms and you can also take the voltage measurement after boost up double click on preview

array so here these are the parameters we are taking for the or project so here I am taking the parastrings 20 and

series connected modules five and I am taking the 60 cells per module here okay and our open circuit voltage is 36.3 and

short circuit current is 7.84 these are the parameters I am taking here and click on ok now run your circuit after

running click on this first scope to see the output of the solar panel here you are getting the one 120 volts DC right

so in solar panel we are getting the 120 volts DC but our home requires two photos right so that's why I'm

connecting the Boost converter here so after boost operation what we are getting click on this curve and here

after boost operation you are getting the two for tools right so here you are getting the two photos DC Supply okay in

output of this our panel we are getting only 110 to 120 but after boost operation we are getting the two photos

right and now we give it to the inverter and at the output of the inverter you are getting the alternate current Zoom

this one so this is the alternating current rate here also we are getting the 25 tools AC

right so this is the alternating current but here we are not connected the passive filter that's why we are not

getting the pure AC right we're only getting the pulsating AC like Square waveform okay for getting the pure AC we

need to connect the passive filter so can I have the passive filter here to get the pure AC so take the inductor and

connect here and take the capacitor so here I am taking the only LC filter that's why I'm taking the inductor and

capacitor and connecting these two like this that's this is the passive filter connection now run your circuit so after

running click on this scope so here you are getting the pure AC that's the use of passive filter okay without

connecting this filter we are not getting the puracy but after connecting the filter you can get the pure AC so

this CAC we require for our home that's it this is the design of solar powered home and in another video I'm also

explaining the same solar powered home with the help of mppt technique also so without mppt technique we can't extract

the maximum power from the solar panel okay I can also provide the link in description of that video

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