I have read a few questions about "Feed-In" limiting, e.g.
https://community.victronenergy.com/questions/66803/ess-feed-in-limiting.html
but these do not seem to address an issue that has come up with installations in Czechia.
Now we all know, that a Multiplus/Quattro can limit the output of an AC-coupled inverter such a s a Fronius by raising the frequency of the microgrid.
However - when connected to the grid, what about the Victron itself? Does it listen and adapt its feed-in to the network frequency? The local network requirements are such that power output has to decrease as the network frequency increases. Starting with 50.2Hz at 100% going to 60% as network frequency reaches 51,2Hz
Now the test laboratory of EG.d (distribution division of e.on) claims that a) Victron not being able to react with power throttling on network frequency increase and b) Victron not having a Czech grid code. While the latter is probably true, I wonder about the P(f) reduction. Always thought the ESS should have this built-in?
These results are prominently placed with the ministry of industry and trade https://www.mpo.cz/assets/cz/energetika/strategicke-a-koncepcni-dokumenty/narodni-akcni-plan-pro-chytre-site/2023/6/6_Stav_pripojovani_OZE_mensich_do_100kW.pdf
so maybe someone from Victron would like to shed some light on this.
