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Unbalanced inverter with 4 MPPTs
https://forum.pvsyst.com/viewtopic.php?f=25&t=4154
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Author:  azein [ Tue Dec 04, 2018 7:59 pm ]
Post subject:  Unbalanced inverter with 4 MPPTs

I'm having an issue simulating an inverter with 4 MPPTs. The thing is that they are unbalanced, while when "Unbalanced MPPT" option is ticked in "Additional Parameters/Secondary Parameters" of the inverter, only two MPPTs can be defined.

Please let me know how to simulate such inverters?

Author:  azein [ Thu Jan 10, 2019 1:14 pm ]
Post subject:  Re: Unbalanced inverter with 4 MPPTs

Should I conclude it's not yet possible to simulate such inverters?

Author:  murali1802 [ Wed Jan 16, 2019 3:17 pm ]
Post subject:  Re: Unbalanced inverter with 4 MPPTs

I am facing the same problem. Unable to define an unbalanced inverter with 4 MPPTs.

Can the PVSyst team help please?

Author:  AndrĂ© Mermoud [ Fri Feb 15, 2019 11:20 pm ]
Post subject:  Re: Unbalanced inverter with 4 MPPTs

The "Unbalanced" feature is a very special mode, only available for 2 MPPT imputs with very dissymetric inputs.

When you have more than 2 MPPT inputs, you cannot define this mode and its very specific behaviour.
But you can always define Sub-arrays of different powers on each MPPT. In this case you should use the "Power sharing" option for attributing a given PNom to each MPPT input.

See the help "Project design > Grid-connected system definition > Multi-MPPT inverters: power sharing" for further details.

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