220v DC 220v AC Converter

[the boulle]

Hello

I would like to convert from 220v DC to 220v AC, frequency equivalent to the network if possible which regulates the voltage also ...

Can someone trace me an electronic circuit to reach this result? you have to support 15A at ​​the exit .....

[Christophe]

Hello,

220V DC, it's not common .... is it for a generator?

The opposite is simpler ... in your case, you will have to recover inverter parts .... You need a pure sinus or modified? What do you want to do with AC power?

[the boulle]

read chris

in fact the goal is to modify an asynchronous motor in generator is load a fleet of small batteries in series

I need an "inverter" to be able to directly drop the circuit breaker, my electricity is made in 2 parts at home; a light part (220v dc is no problem) you need 220v ac for all the appliances tv ets ...

[Christophe]

Ben I think the asynchronous motor will come out of the AC not the DC ...

But you want can be modified an asynchronous motor synchronous motor with permanent magnets so?

I am currently on the same type of project for my paddle wheel: I think that the most effective will be to make a very low speed permanent magnet generator (<100 rpm) directly linked to the drum (no need for transmission therefore).

As soon as I have a little pottery and gathered the necessary doc, I create a subject!

[the boulle]

exact his fate of ac but .....

not at the right frequency apart if you have a regular rotation speed .... impossible in our case, it would work on convectors or other resistive loads, but these variations would directly damage any sensitive equipment; TV etc ...

[Christophe]

Voila AC at variable frequency and it's what stinks ...

It is pkoi I think it is easier, to go on a synchronous generator with permanent magnets that makes DC ...

As I say I am going to document extensively on the subject, I have already found some doc thanks to Luc including.

[Obelix]

Hello,

Yes it is because the CA has a variable frequency that it intends to go through the DC.
Me, I would see after this DC a total solar type converter sale to EDF. This converter seek the optimum point of operation so it is a plus, it has all the necessary security side DC and AC side. (SMA Sunny boy)
And moreover, the price is not prohibitive .......

Obelix

[Christophe]

Boulle wanted to make a homemade montage I think or with recovers.

But I think he will change his mind.

It's good we have a similar project all 2 en route!

[elephant]

It is necessary to start by straightening with a bridge of 4 diodes (use a washing machine bridge, for example), then filter with a (large) capacitor. But I do not think you get 230V DC load, or empty Then, we chop at high frequency and rebuild. Do a search, possibly in English (DC-AC converter) but I do not think this kind of pattern runs the streets.

[Alain G]

Hello Boulle

Oh dear!

3300 watts is huge, it will take a very strong wind and a sacred wind to provide as much, you would be better off buying a UPS and everything goes up batteries because a wind turbine will have difficulty holding the load.

There is a possibility with an AC motor controller but it will cost you more than batteries and an inverter.


Alain