Zero grid feed vith 3rd party inverter

Modifications
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1

Hi,
I’m trying to integrate Huawei SUN inverter.
I have a pcl. I read data from huawei, I created a modbusTCP slave and used Sunspec registers for fronius symo.
Venus detects the inverter, I see the values, it is detected as fronius symo and “product detection a142” is the same as the second symo that works. That’s ok.

But the power control is not displayed. I need venus to do the regulation for zero grid feed like it does for fronius.
I don’t need it for island mode, I need to arrange overflows in case of negative prices.

Has anyone solved how to integrate a 3rp party inverter including power regulation via sunspec?
Or do you know where to read information about the regulation for zero grid feed?
If I had the % of the required power, I would recalculate it in the plc and send it to huawei.

Thanks
Pavel

2

Hi,

I’m also looking for this information.
Does anyone have an idea where the “required power output for the PV inverter”, as calculated by Venus OS, can be read?

It’s possible to adjust the power output of a Huawei inverter by writing to the corresponding Modbus registers.
However, I would like to use Venus OS to determine the required power value, so I can regulate the PV power for zero feed-in or to limit export in case of negative electricity prices.

Any help or pointers would be greatly appreciated!