Huawei batteries Luna 2000 connected with Huawei M1 and M3 or M2

[DavidPereira]

Hello,

 I’m using Luna 2000 5kW batteries and Huawey inverters but according to Huawey connection possibilities, we can have 3 Huawey inverters, charging the battery (your system only permit connection to 1 inverter), if one is M1 (hybrid inverter) and 2 M3 ou M2 on grid inverters.

 The problem is that with the available PVsol configuration, if we connect the batteries with the M1 inverter of 10kW, we have a wrong simulation as you can see bellow:

• It’s not possible to have just 27kWh of used energy with this configuration

Could you please verify what’s wrong with your software or how can we fix it?

[developer_mh]

Hi David Pereira,

the charging of DC coupled battery systems by more than one inverter is not possible in PV*SOL right now. You could change the coupling type to AC, so that energetically you get closer to the real thing.

Can you point me to a description of the connection possibilities of the M2 or M3 inverters to the Luna 2000?

Thanks a lot and kind regards,

Martin

[developer_mh]

I just found a nice diagram that illustrates one possible connection:

 

from https://support.huawei.com/enterprise/de/doc/EDOC1100173562/c29b9ead

So yes, this is only possible if you change the coupling type to AC.

 

[DavidPereira]

Hello,
Thank you for your reply. I know that is possible to connect other inverters such as M2 or M3, but I can't change the coupling from DC to AC in PVsol as you can see in the sreenshot bellow.

[developer_mh]

Hi David,

yes, you'll need to create a copy of this battery system first. Then you can change the coupling type.

Kind regards,

Martin