We know that
Inverter is an essential component of nearly all types of solar photovoltaic
system; it is defined as the device that converts DC electricity to AC
electricity.
Now I will
introduce to you all types of solar photovoltaic Inverters present at the
market:
First: Stand Alone Solar Inverter, which characterize by the following:
1-
It coverts DC electricity to AC electricity.
2-
It runs by pulling DC current from batteries charged from any DC
electricity source like engine generator or wind turbine …etc.
3-
In the same time it refill batteries with DC electricity from any AC
current Source when it possible.
4-
It used in feeding homes and small industrial system by AC electricity
as a power backup.
In most cases as conclusion we use it in stand
alone solar photovoltaic system with backup.
Second:
Battery Backup Solar Inverter, which characterize
by the following:
1-
It used to get AC electricity from batteries and this AC electricity
will go to a selected area which needs power during outage and in the same it
brings extra electricity to utility grid "feed in tariff ".
2-
It contain onboard charger to manage the batteries energy.
In most cases as conclusion we use it in stand
alone solar photovoltaic system without backup.
Third:
Grid Connected Solar Inverter, which characterize
by the following:
1-
It used to convert DC electricity to AC electricity and it is programmed
to automatically turn off during grid power outage.
2-
It allows the home owner to sell electricity to Electricity Company.
In most cases as conclusion we use it in grid
connected photovoltaic system without battery backup.
Fourth:
Micro Inverter, which characterize by the
following:
1-
It attaches directly to individual photovoltaic modules.
2-
It is used to extracting maximum electrical power from each module.
3-
Although it is highly efficient as it produces more electrical power than
on grid inverter but it is more costly.