Hi Paul:
I am working in a project of detailed pv + storage(DC connected) in pv smoothing configuration. I would like to ask a question regarding the variable Electricity to/from battery. I assume this variable represents the battery power so I was trying to know if it is either measured in the AC or DC side. Looking at the results from the simulation the variable seems to mix DC and AC values. When battery is charging(-) from system, it is true that:
Inverter DC input power = PV power gross + Electricity to/from battery
I have no DC power losses. However, this no longer applies when the battery is discharging(+). In that scenario, it is true that:
Electricity to/from grid = Electricity to grid from system + Electricity to/from battery
I have no AC power losses. I attach a picture of the simulation results. My question is if the variable is mixed or I am understanding something wrong.
Thanks in advance
Kind regards
Miguel
Attachment Captura.PNG not found