Original subtitles

Hi and welcome back to Olmer tutorial in this session, we want to add a story system as we talked about

it in previous session, we need to add a story system in order to store electricity produced from wind

turbine in the model PV panel in the model to save it for the times that we don't have access to resources,

to renewable resources like the speed or solar radiation.

So to do this, we need to.

There is another thing that I want to mention here.

As you can see, the suggestions are you have two suggestions.

Consider adding a battery or flywheel.

This means that you need to add a storage to your system to be feasible, to model, to be feasible.

And it also mentioned that model does not match results, means that your model is not feasible yet.

It cannot meet the.

The loads that you do find for your model previously cannot meet it, so you need to add a story system

in order to solve this problem.

So by clicking on the component section and storage, this will be pierde.

And again, just like previous stages, we need to define our model.

For example, here we are going to add a generic one kilowatt hour lead acid or let's go with the generic

one kilowatt hour lithium ion battery.

So this is a very generic type of batteries that usually used for modeling energy, renewable energy

systems.

So by and stretch this autumn, this will be a so the DB, there's nothing new here.

So as just like what we did for auto components, we have capital cost, replacement cost and operation

maintenance costs.

What I know it's too much.

So we need to, for example, change this to something like two hundred for capital costs, two hundred

for replacement cost and let's keep it 10 hundred ten dollars for per year for operation and maintenance

cost.

So these numbers are not real.

So did not reference to these numbers.

This is just for continuing to continue making or creating our model.

So our initial model and this is just for the purpose of the not to reference these numbers and.

There is a lifetime of your battery that is very important and it is a very important role in your model.

You can change.

You can use this model, as we mentioned before, in order to do the analyses of the lifetime of your

battery.

And also this shows the width of your battery.

That means we have three thousand cycles of this battery can work during its lifetime.

So and you also can have such a space again and optimized.

But let's keep the optimizer interesting, more optimizer.

And these are showing the initial state of charge and the minimum speed of charge.

So what is the state of charge?

Actually, the state of Georgia is showing how your battery is.

For example, one hundred percent full, it means that the state of charge of your battery is one hundred

percent if it's half half of it use and then you're using a use, the second battery means that's the

state of charge if it is 50 percent.

So as we consider these batteries are not used before and this is the first time that we want to size

them.

So we consider the initial state, if it's one hundred percent or we can change it by sensitivity analyses.

Bottom up minimum, the state of charging means that the state of charge of the battery cannot go down

more than 20 percent.

It means that if your batteries, for example, 10 kilowatt hour.

You can you cannot go, for example, you can use eight kilowatt hour profits and you cannot go down

to two kilowatt hours, so this means that this actually defines the depths of charge of your battery.

So if you don't know about these numbers, just keep the default here.

This is good.

One hundred percent for initial and 20 percent for minimum state of charge and.

Yeah, that's that's that's a view and you can change the name as well here.

So as you cantinas Kermadec section, now we have batteries in a DC two.

So in case of.

In case of excess electricity of the PV during the day, so it goes through the DC line to be saved

in a battery in the DC line, and then when we need the battery, when we don't have, for example,

radiation, we need to use batteries, the energy saving battery, it just come to the DC converter

inverter and then AC and then we use it.

And if we have access to electricity from the wind turbine, it goes to the AC.

And as I mentioned it to me and as we discussed it in a converter section, this time is a rectifier.

So it's first use the rectifier to just change the AC to the DC and then save it to the batteries.

And when we need it again, use the inverter to change it from D.C. to AC and then use it in the load.

So that's a very straightforward process.

So now our system is our model is completed.

Actually, we have two generators.

We have one story system, we have inverter and rectifier and we have our loads here.

And as you can see here in the suggestion power, we don't have any more that suggestion that adding

the storage to our model.

So that's it.

Now we can go and run our model, but we need to finish this session.

And in the next session, we're on our model and we discuss the results and how we need to evaluate

our results.

Until then, take care and enjoy using Comber.