ok everybody!

I think that someone here doesn't built the same project, so I will believe to realize this, why others person arrive to realize the same product, why me? You tell about complication, I think it's not if you'll really decide to realize this!

for me, the first problem is to find what battery could produce powers that i need, and the second is to find the good transfo, and to calculate values of LC for my filter.

thanks for your help guy!

 

Why make a low frequency square-wave inverter then waste most of its power by heating a huge filter?

Instead, make a switched-mode PWM inverter that uses a small ferrite transformer at a high frequency to make a 320VAC square-wave which is rectified and powers the PWM Mosfets that chop it into a 50Hz 220VAC sine-wave. Then the filter parts are tiny and efficient.

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Uncle $crooge

 

1100W, over > 20 minutes, is best supplied by a generator.