Help me make firmware for current limiting 1500A.

[Xach-s-usami]

Dear developer, help me make firmware for current limiting 1500A.
Yes, I do not have a standard assembly of 9 inverters and 10 batteries of 10 kW each, they operate on a DC bus. I know about your project with multibms, but at the moment it’s enough for me to test firmware with such restrictions) I would be very grateful if you help with this)

As I understand in the protocol, the maximum current is cut to 600A, the maximum I could get

[Uksa007]

Hi,

Can you provide some more info?
The CAN protocol should allow up to a max of 6,553A

What make and model inverters are using?
What make and model BMS are you using?
What hardware are you running the code on?

Regards

[Xach-s-usami]

1. Luxpower sna5000
2. Jk_B2A24S15P
3. ESP_32 wroom usb type-c

[Uksa007]

No really sure what you are trying to achieve, the max charge/discharge current for the SNA5000 is 110A?

[Xach-s-usami]

How can I register the highest possible value? The inverter can limit the current + there are circuit breakers
There are 9 pcs of batteries in parallel and the function of a common battery for all is enabled. In 1 inverter you need to give a channel to the battery, and it will transmit information to others + the DC bus distributes the load

[Xach-s-usami]

Не совсем уверены, чего вы пытаетесь достичь: максимальный ток заряда/разряда для SNA5000 составляет 110 А?

[Xach-s-usami]

110А and this is if there is 1 inverter, since I have a parallel then the limit is 9*110=990a and for the discharge 990a

[Uksa007]

Can you attach some logs from the ESP32 with the required current set?
Drag and drop the log file in the reply.

[Xach-s-usami]

logs_jk-bms-can_logs.txt

[Xach-s-usami]

As I understand it, the inverter itself does not want to see these values

[Uksa007]

So I really don't know what you want?
If you set charge current at 1000A, that is what gets sent the inverter?
If you don't want 1000A set it what you do want the inverter to receive?
If you want it to scale based on the number of BMS connected you will need my Multi BMS setup.

[Xach-s-usami]

Can you tell me when the project will be ready? It’s very interesting to try this) I also noticed that it doesn’t allow you to get more than 601a with 1 battery; it’s possible to virtually duplicate the second battery so that information from 2 batteries with the same indicators is transmitted through the channel.

[Uksa007]

The Muli BMS code is available on the hardware now. #16

The Pylon CAN protocol does not have any different channels etc, it works as master that communicate with inverter.
Do you have any protocol documents of what you think the inverter wants?

I suggest you test using the Pylon CAN protocol configured in the inverter.

[Uksa007]

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