make a solar powered ups
See UPS is finaly DC to AC converter.
We cant store AC electric power, so what you have to do that you just replace your chemical DC battery with Solar Panel.
First you decide for which function you want to use that ur SOLAR UPS. Calculate the power and current requirement.
I think there must no be an issu of Solar Panel adjustment, its readily available from market just you have to do its parrelel connection.
But what i am affraid of that your UPs will be very bulky because solar cell doesn't provide sufficient current, you may have to use some what larger array.
So what i am advise you that if it is ur final year B.E./B.Tech project, please search any another.
Regards.