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Hi welcome to the PZ engineering channel in this video we are going to show how to integrate
Gri - battery and load in matlab simulink software
the idea of the system is the grid will supply to the load and charge the battery during standard
end of peak hours because the electricity tariff at these hours are cheaper
and during the on peak or peak hours the battery or energy storage will supply
to the load because at this time electricity types are higher
which means from 6 am to 9 am and 6 p.m to 9 00 p.m the energy storage will supply and other times
the Grid will supply this is our system which is already built
we have a grid there our lord demands
here's our Energy Storage is dc to ac converter our energy management system
measurement
let me just write it down
now let's open each component to see here's our grid
let me just change the parameters
here i've tried the phase measurement if i second breaker it shows that the second
breaker will open from 6 a.m from 6 to 9 a.m and then from 6 to 8 p.m
here we have our two-phase measurement again after the second break
i have our voltage and the three phase voltage interface current he has to generate the active
in reactive power
here our active power our power is multiplied by 1.7 is to put in three phase divided by
as well converted to mega
here we have our lord the first lord as you can see 380 voltage 64 quest and 1.6 mega we have
the second one which is i call it as a hvac f 9.6 megawatt and the actual load which is 2.7 megawatt
now let's go to the our energy storage or energy storage
is the three parameters let me see we have our bi-directional dc-dc back boost converter
here we have our inductance and our capacitor value and we have our resistor just to
it's existing and then we have our mosfet without changing anything ever gate switch
go back
here i have our dc ac converter
here we have our three-phase series algorithm we have our breaker the first breaker as you can see
it it closed it goes from six am to 00 a.m and then from a six pm to eight pm
here we have our ac2 to dc inverter from grid to the switch which is the demand that i'm not going
to charge this is is a circuit breaker opening time here we have our three phase measurement
here we have ac dc reservoir identifier we change it to diode
aifi energy management system is a control
charging and discharging of the energy but energy storage system
here we have our measurements
to avoid simulating for a long time
let's change our switching and opening and crossing time of our breakers
to 2 3 and and four
to five
let's change here as well
i think we are done now you are ready to to simulate just reduce the time doesn't take long
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let's just be patient it will take time
as you can see the system starts by charging the energy storage
let's check our results as you can see
the grid supplies from 0 to 2. and from two to three is off is not supply from three to four
is applying and from four to five is not supplying from five to six is supplying
here is the the power that's used to charge the energy storage system
and then the new resource system is supplying from two
to three from four to five it's not supplying from five to six