question

gdhondt avatar image
gdhondt asked

Running Dynamicc ESS, Cant reach the maximum Charge Current Level

Hi,

My setup:

  • 3 phase Multiplus II 48/5000
  • 45kWh Battery capacity
  • Running Dynamic ESS
  • Location: Netherlands
  • Max grid current 3X 25A = 17000Watt


I have a question about the maximum charge current of my system. My system is not charging maximum watts/amps what the system is able to do. The multis should be able to charge 3X70A=210A. While the system in the VRM does not reach 180A of charging current.


I have the following options/settings enabled/disabled:


1697029149532.png

1697029229481.png

Parameters from my BMS (seplos)


1697029340203.png

Even if i make my 'grid setpoint' 14000 watts. It still charge my battery with maximum of 9500 watts.

Does anyone have any advice on what I can check? With the Dynamic ess function, I want to use my system as optimally as possible


charge current limit
2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

2 Answers
mableeker avatar image
mableeker answered ·

What are your settings for DESS (in VRM or Nodered). The to/from grid and to/from battery variables are determining the charge amps, not the grid setpoint for as far I know now.

2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

Dirk-Jan Faber (Victron Energy) avatar image
Dirk-Jan Faber (Victron Energy) answered ·

Can you set your systems VRM logging interval to 1 minute instead of 15 minutes.? That way we get some more data to analyze.

4 comments
2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

gdhondt avatar image gdhondt commented ·
Hi Dirk-jan,


I have set the vrm logging interval to 1 minute. :)


My Dynamic Ess Settings are now set to my maximum charge capacity (9800 watts) otherwise my DESS charge calculations doesn’t match the reality.

0 Likes 0 ·
Show more comments

Related Resources

Additional resources still need to be added for this topic