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victronenergy / venus

Victron Energy Unix/Linux OS
https://github.com/victronenergy/venus/wiki
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v3.20: BatteryLife no longer works #1204

Closed mpvader closed 9 months ago

mpvader commented 9 months ago

https://community.victronenergy.com/questions/257253/venus-os-v32040-available-for-testing.html

RandMental commented 9 months ago

ESS Issues - Loaded Beta 41 this morning.

I can confirm that the ESS "Keep batteries charged", also still don' t work correctly.

Easy Soler 48V/5000W system that does not want to feed back into grid whatever the ESS and GX settings (GX V3.13 and V3.14 tried) ( Alternatively, it could be related to #1183?)

• MultiPlus 48/5000/70-100 V5.08 (2624) • Color Control GX V3.13/14 • SmartSolar MPPT VE.Can 250/100 rev2 V3.14 • Pylontech 2 x US3000C as master ~V1.7 (new version) 2 x US3000A

This is in the SA market with “ Not complying with any Grid Code Standard” plus LOM B (safe) set. and UPS mode with ESS Assistant.

In the Screen below the 48V DC coupled system is capable of 5kW, yet the Pylontech US3000C batteries stays on ~95% SOC as previously set and tried with and without BatteryLife> No Grid feed

image

With the Grid available it still don’t feedback into the grid as expected

image

izak commented 9 months ago

I think I know why. Auto-recharge appears to be broken.

Edit: No, false alarm. Cannot reproduce. Waiting on response from customer.

RandMental commented 9 months ago

Hi Izak, what would you need from us to assist solving the above? We are in Centurion

izak commented 9 months ago

@RandMental Your issue appears to have nothing to do with the actual bug reported above, so it is unlikely that you can help me with this one.

izak commented 9 months ago

This issue is definitely present on Harold's test system, so I'm continuing to debug it there. Original customer that reported the issue is unresponsive.

izak commented 9 months ago

Bug found. It affects sites without a managed battery, and with no maximum discharge power set.

In technical terms, doing math in C++ with a NaN (not a number) yields NaN answers and then nothing works down the line. For sites without a managed battery (and no ESS max discharge power set), the maximum discharge power is a NaN.

RandMental commented 9 months ago

Dankie Izak, Our Installers willbe on-site this morning to check what is happening here

izak commented 9 months ago

Bug fixed in hub4control v1.3.3, and on the TODO.

RandMental commented 9 months ago

Dankie Izak, Our Installers willbe on-site this morning to check what is happening here

No Success or a solution yet - Copy you in an email with more behaviour and disgnostic information (to XXX@victronenergy.com)