3 Single Phase Inverters Star Connected

[prizark]

Hi,

I want to know if I can connect 3 Single Phase Inverters(phase
displaced and output harmoincs filtered)in a Star-Connection fashion
to get a 3-Phase Supply.Since only the ground reference are connected
together I don't see any reason why they can't be connected but I just
wanted to make sure.Thank You.

Prizark.

 

[Rich Grise]

Hi,

I want to know if I can connect 3 Single Phase Inverters(phase
displaced and output harmoincs filtered)in a Star-Connection fashion
to get a 3-Phase Supply.Since only the ground reference are connected
together I don't see any reason why they can't be connected but I just
wanted to make sure.Thank You.

In theory, yes, if you could properly lock them 120 degrees from each
other in phase. In practice, unless they were specifically designed to
be used this way, it's probably more trouble than it's worth.

Sorry. )-;

Rich

 

[Guy Macon]

I want to know if I can connect 3 Single Phase Inverters(phase
displaced and output harmoincs filtered)in a Star-Connection fashion
to get a 3-Phase Supply.Since only the ground reference are connected
together I don't see any reason why they can't be connected but I just
wanted to make sure.Thank You.

This should work, but getting the phase displacement right could be
diificult. How are you planning on accomplishing that?

 

[prizark]

I am thinking of generating a stable 50Hz signal from an oscillator
and then use All-Pass filters to get predictable and precise phase
shifts for each 120 degree line.Then these are level shifted and fed
to the comparators of each individual inverters.

Prizark.