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DVCC: Add configurable charge voltage limit for managed batteries #761
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Also use zero as the unset value rather than -1. victronenergy/venus#761
only used for managed batteries. victronenergy/venus#761
Add maximum charge voltage setting for managed batteries victronenergy/venus#761
Add registers for EV chargers. Closes victronenergy/venus#742 Add register for dvcc max charge voltage setting. victronenergy/venus#761
@izak how would enabling this new feature affect: a) an ESS system with lead batteries, a Multi and solarchargers? |
And @izak the title of this issue talks about a configurable override charge voltage setting. Is that what it is? Or is it a user configurable upper limit for the charge voltage? Which would leave the system operating as is, accepting also any lower charge voltage setpoints, but limiting them to the configured value. |
Only affects systems with a BMS, so no change in systems with a lead acid battery. The charge voltage configured on the Multi is used.
In a system with a managed battery, the solar chargers will use the lesser of this setting, or what the battery asked for. In a system without a managed battery, this setting has no effect.
Completely ignored, only used with DVCC. The labels in the GUI is "Limit managed battery charge voltage", and it is only shown if DVCC is on. So I believe this should be clear to the user.
It is the second one, so technically the title of the issue isn't accurate. It is a user configurable limit, but it will not allow the user to exceed the voltage sent by the managed battery. |
Add maximum charge voltage setting for managed batteries victronenergy/venus#761 (cherry picked from commit 27f9fc2)
Add maximum charge voltage setting for managed batteries victronenergy/venus#761 (cherry picked from commit 27f9fc2)
Add registers for EV chargers. Closes victronenergy/venus#742 Add register for dvcc max charge voltage setting. victronenergy/venus#761 (cherry picked from commit 550b762)
In some cases, the installer may want to override the charge voltage sent by a managed battery.
The case to solve with this is a temporary condition where there is an imbalance in a brand new battery that simply needs time to balance. A lower charge voltage limit can then be set, allowing room for the high cell and time to balance.
Proposed implementation:
TODO
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