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The Multiplus II can control the output power of an inverter using the frequency: the higher the frequency the MP2 creates, the lower the output of the inverter. This works well with Fronius inverters.
Question: Does this also work with Hoymiles inverters? HM-1500 for example.
Are there any updates on this topic?
I would say, yes, this should work. This is, as far as I remember, a request of the VDE AR-N-4105 (at least for Germany).
I don't have access to the docuement, but once had the chance to have an insight. It should be this chapter: 5.7.4.3 Verhalten der Erzeugungsanlage am Netz - Wirkleistungsanpassung bei Über- und Unterfrequenz
And additionally, Andy from the Offgrid Garage, has such a combo running with the MP2 and some other "Micro-Inverter" and this works fust fine. Please check his youtube channel.
As the Hoymiles Inverters are all qualified against the german standard, I would say this should work.
Yes it works with my Hoymiles HM-1500 and HMT-2250-6T.
And it should work with every inverter which fulfills the regulations of grid coupled operation.
This does also work well with APSystems microinverters on my site.
But you should be aware that frequency shifting will only Work off-grid.
If the MP2 ist connected to the grid via Ac-in IT cannot shift the frequency on Ac-out.
Regards
Alex
And the corresponding assistant in the MP2 must bei implemented.
