3 KW Inverter 48V DC to 220V AC pure-sine

[sekai]

Hi, I'm trying to build a 3 KW inverter for my solar panels.I found a lot of schematics on the internet but with only 12 V or 24V input.
I need a sort of a ups like overload protection, battery discharge etc.So i would like for someone to show me a proper schematic with these functions.
I have powerware 9210 ups , really smart but at only 1.5KW and its input is 108 V.
Thanks.

 

[kabeer02]

I wont advice you to power 3000watts with 12v may be 48v will make sence

 

[sekai]

I said that i wanted a 48 V schematic not 12 V.