Hi There,
I had simulated a Detailed PV Battery Behind the metersystem.
The dispatch algorithm was set to be manual for 4 hours inthe night.
The rest of the hours was set to charging. The charging & discharging from the grid is disabled.
As pert the dispatch algorithm, the battery dischargescorrectly.
However, for charging, I do understand that the default algorithm supports the load first and the excess
is used to charge the battery.
a) However, the simulation numbers show that the excess after the load is completely exported to the grid. (The battery charging
power is not subtracted in the excess to the grid).
PGrid = PSolar – Pload and not
PGrid = PSolar – Pload -Pbatt
(Attached excel: Cell 34)
b) The battery is also being charged even if the excess after load is not enough to charge the battery.
Numbers reflect that the battery is charged to the maximum Charging power even if
( PSolar – Pload < PMax Charging Power) (Attached excel: Cell 35)
Hence the “Electricity to battery from system” and the “Electricityto/from grid” doesn’t reflect the correct numbers.
Would appreciate if someone can comment and help me on this.
Thanks.
Vinoth