Help with my Setup

[0lini]

Hello everyone,
I'm currently trying out OpenDTU-onBattery. I stubbled apon the following issues:

• The Power reading seems to be of by quiet a bit
• When enabling dynamic power limiter it behaves weirdly
  My setup is as following:
  I'm using a Hoymiles HM 800 connected to a Zendure SolarFlow inverter that has a Battery attached to it, my Power is read by a Shelly Pro EM 50. Because Zendure doesnt support any kind of external access to their devices I set the powerlimit on my Hoymiles inverter, currently by an Home Assistant automation. I managed to add the Powermeter to OpenDTU and set the settings as described in https://github.com/helgeerbe/OpenDTU-OnBattery/wiki/Dynamic-Power-Limiter-%28Nulleinspeisung%29-%E2%80%93-OHNE-BATTERIE. The first thing I noticed was that the "Leistung / Netz" is of by quiet a bit, (-501W, while phase 0 and 1 combine to a total of -661W) when I test the values in opendtu they seem to be read correctly. Secondly my inverter seems to just turn of when I enable dynamic power limiter.

[madmartin]

My suggestions:
first try to set up the powermeter.
The powermeter reading shows positive values when you consume energy from the public network.
When your reading is negative (-501W) then 500 W flow INTO the public network - or your power reading is wrong.
So in this situation the Hoymiles inverter is shut down by the powerlimier, because we do not want to give away energy to the public network.

So rework your powermeter settings.

for what you need the "zendure solarflow inverter" I better dont ask....

[0lini]

I have a Shelly Pro EM-50 which is for households with only 1 phase. The Powermeter reads two powerrails and provides those two rails as individual power readings. For example in my case one rail just goes to our kitchen and the other is for the rest of the flat. In Home Assistant I had a function which just added them up and used them as the power reading.

[0lini]

Those two readings work and give the correct net consumption, it just seems that OpenDTU looks just at one of the rails and doesnt do anything with the other one...

[spcqike]

It looks like you are right. This could be a bug

however if you activate separate url for each phase, you can query both phases. At least this worked for me.

same url and json for phase 1 and phase 2 gave me double my real consumption.

[0lini]

Ah your right, if I do tick "Individuelle HTTP requests pro Phase" it seems to be calculated correctly. This seems to be a bug, should we make a issue about that?

[schlimmchen]

See #637.