Forced charging not charging at full power ( + self consumtion not working as intended )

mkaiser / Sungrow-SHx-Inverter-Modbus-Home-Assistant

Sungrow SH Integration for Home Assistant for SH3K6, SH4K6, SH5K-20, SH5K-V13, SH3K6-30, SH4K6-30, SH5K-30, SH3.RS, SH3.6RS, SH4.0RS, SH5.0RS, SH6.0RS, SH5.0RT, SH6.0RT, SH8.0RT, SH10RT, SH5.0RT-20, SH6.0RT-20, SH8.0RT-20, SH10RT-20, SH5.0RT-V112, SH6.0RT-V112, SH8.0RT-V112, SH10RT-V112, SH5.0RT-V122, SH6.0RT-V122, SH8.0RT-V122, SH10RT-V122, SH4.6R

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Forced charging not charging at full power ( + self consumtion not working as intended ) #176

Open Tsopic opened 12 months ago

Tsopic commented 12 months ago

Not sure what's wrong with this setup.

Maybe someone has ideas.

Screenshot_2023-10-07-12-41-53-18_c3a231c25ed346e59462e84656a70e50.jpg

The last 2 images are added later when there is PV available already. But BMS max current was at the time of force charging also 80 A.

Also tried to set force charging by app command, did not increase the charging power. ( At the time of testing integration forced charging was also enabled in the integration)

The inverter has the latest firmware, not aware of how to update BYD battery firmware.

Have not tried A cold reboot yet. Adding an image of multi-hour forced charging stats:

Screenshot_2023-10-07-12-39-52-65_c3a231c25ed346e59462e84656a70e50.jpg

It should be currently importing 10000w but it does only 1k.

Modbus connection: The dedicated Modbus port which is used with PI4 + the original port that lets the isolar app command the inverter. Inverter: SH10RT Battery: 2x byd b-box premium hvm 22.1

I am looking forward to any ideas for a solution, if anyone has some similar issues with forced charge.

mkaiser commented 12 months ago

The settings look good to me.

What are your BMS current values?

Please edit your first post and let us know the values from the issue template. You did not share much about your setup: inverter type, battery type, LAN cable attachment, ...

What happens, if you are using the sungrow app and not this integration?

Are you sure you have the newest firmware for both, inverter and battery?

Once in my setup, the battery and inverter were kind of out-of-sync. A cold reboot (including power off for some minutes) helped. Did you try this?

Tsopic commented 12 months ago

I have not tried the cold reboot yet, updated the original post with Battery Amps and setup details. If need more info, I'm happy to provide it.

It's a strange issue since 1 day before in the morning it was chugging energy from the grid with full power. And the day before data also with only 50%.

Tsopic commented 12 months ago

Adding some more info from isolarCloud.

After hard resetting it - powering off for 5min and powering on + setting discharge limiter lower and then back to 10k. It does discharge with full power again.

Now it refuses to consume from battery for some reason 😮‍💨

Lemme know if there are some protection parameters I should change or improve.