Power Limitation for HEMS and evcharger

[Ab0Ddore]

Hello everyone,

I'm currenlty working on an HEMS wich control an EVBOX LIVO. Currently, I created an interface (HTTP) to see what happened. My problem is that I can limitate the current with OPEV but I can't limitate the power. I tried both with LPC (setlimitconsumption) and CEVC (writeloadlimits). When I execute that there is no error and all is good and set, but when i check the values (with a max of 32A with A phase (7000W+) , LPC set to 6000W and CEVC set with 2000W for 2minutes) the current go to 30A (the limit of our car which is near 7000W) and to take the power limitation in count.
Do someone has any idea of where is the mistake ?
Thank you !

[DerAndereAndi]

Hi,

you can only limit the currents when an EV is connected. Do NOT use LPC or CEVC, they have a completely different purpose.

[Ab0Ddore]

Ok thank you !
So do you mean that EV chargers are only controlable in current (A) ?
Can't I manage to limitate the Power of charge during a time ?

[DerAndereAndi]

You have to calculate the currents from the power value you want to set and send the currents. This is normal on basically any protocol communicating with an EVSE.

[Ab0Ddore]

Perfect ! thank you @DerAndereAndi