Mirrors/EOS
1
0
Fork 0
mirror of https://github.com/Akkudoktor-EOS/EOS.git synced 2026-11-13 09:13:30 +01:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

feat(devices): add inverter profiles

Browse Source 
An inverter profile describes the technical data of an inverter model: its
nominal AC power, the DC→AC and AC→DC efficiency curves over the load
fraction (AC power relative to the nominal power), the AC charge power
limit of the model, whether that limit also limits PV charging, and an
optional power derating over the ambient temperature. Curves are read
linearly and clamped at their ends, so every lookup yields a value. The
packaged profile generic-hybrid has typical hybrid inverter efficiencies,
no nominal power (the inverter device has to provide it) and full power up
to 45 degC.

Inverter settings name their profile (inverter_profile, default
generic-hybrid) and hold the differences of the unit in profile_adjustment:
nominal_power_w (replaces the profile value, required for a generic
profile), max_power_w and max_ac_charge_power_w (installation limits that
can only lower; an AC charge limit of 0 disables AC charging). The
effective parameters are resolved at the ambient temperature of the
inverter, given by the new measurement key <device_id>-temperature-degc
(45 degC without a fresh value); the power derating lowers the maximum
power and the AC charge limit.

Optimization parameters are always valid: the GENETIC and GENETIC0
parameter preparation resolve the inverter with
resolve_current_operating_parameters_or_defaults, which never raises. An
unusable profile gives the generic-hybrid profile, a missing nominal power
the fallback of 10000 W, an inverter derated to zero power the parameters
at 45 degC, and no usable profile at all the profile adjustment with
constant efficiency; each is logged as error. The GENETIC inverter takes
the AC→DC efficiency curve of the profile, solved exactly on each linear
piece of the curve (about 2 % longer runs); GENETIC0 keeps constant
efficiencies and no longer replaces the configured inverters with the demo
inverter; a battery, electric vehicle or inverter that cannot be prepared
is left out of the GENETIC0 run, never replaced by a demo device.

Configurations migrate: max_power_w becomes
profile_adjustment.nominal_power_w, max_ac_charge_power_w moves into the
adjustment, an ac_to_dc_efficiency of 0 keeps AC charging disabled, and
the efficiency fields are dropped with an error log, as for batteries, so
the profile efficiencies apply. Home Assistant config paths follow.

Additional changes
- Move the curve algorithms of the battery profile into profilecurve, so
  battery and inverter profiles share them; the battery profile keeps its
  document format and classes.
- Move ProfileBaseModel, the strict base of profile documents, into
  profilestore.
- Serve inverter profiles through the profile REST API. Refuse to delete a
  profile that a configured device uses and that has no packaged profile
  to revert to (409).
- Share the measurement access of the device settings in
  devicemeasurement.
- Rename check_battery_profiles to check_device_profiles; the device
  profile check at configuration setup covers inverters, too.
- Document inverter profiles, their configuration, defaults and sharing;
  regenerate the configuration and OpenAPI documentation.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Assisted-by: Claude Code (claude-opus-5-5)
This commit is contained in:
Bobby Noelte
2026-11-11 22:08:18 +01:00
co-authored by Claude Opus 5.5
parent e255f987bf
commit faf37abfe7
45 changed files with 3235 additions and 784 deletions
Download Patch File Download Diff File Expand all files Collapse all files
docs/akkudoktoreos/optimauto.md
+54 -48
View File
@@ -282,62 +282,68 @@ that is configured, even if more devices are configured.
{
"devices": {
"max_inverters": 1,
"inverters": [
{
"device_id": "inv1",
"max_power_w": 10000,
"battery_id": "bat1",
"ac_to_dc_efficiency": 0.95,
"dc_to_ac_efficiency": 0.95,
"max_ac_charge_power_w": 5000
}
]
}
}
```
The inverter supports separate AC↔DC conversion efficiencies:
- `ac_to_dc_efficiency`: Conversion loss when charging the battery from AC grid power (0-1).
Set to `0` to disable AC charging. Default `1.0`.
- `dc_to_ac_efficiency`: Conversion loss when discharging battery to AC load/grid (0-1).
Must be > 0. Default `1.0`.
- `max_ac_charge_power_w`: Maximum AC charging power in watts. `null` = no additional limit.
Set to `0` to disable AC charging. Default `null`.
- `dc_to_ac_efficiency_curve`: Optional load-dependent DC→AC efficiency as a list of
`[load_fraction, efficiency]` points, with the load fraction relative to `max_power_w`.
Real inverters are much less efficient at low load, e.g. when the battery serves a small
night-time base load. The points must be strictly increasing in load fraction (0-1) with
efficiencies in (0, 1]; values in between are interpolated linearly, values outside are
clamped to the first/last point. When set, the curve replaces `dc_to_ac_efficiency` for
battery discharge. The efficiency is always the one at the AC power that is delivered: if
the battery limits a discharge (low state of charge or its power limit), the conversion is
evaluated at that lower load, not at the requested one. Default `null` (constant
`dc_to_ac_efficiency`, unchanged behaviour).
- `dc_to_ac_efficiency_reference_load_fraction`: Load fraction at which the curve is evaluated
where stored energy is valued without a specific discharge, e.g. the energy left in the
battery at the end of the horizon and the AC charge break-even. Choose the typical load
the battery serves. Only used with `dc_to_ac_efficiency_curve`. Default `0.06`.
**Example with an efficiency curve:**
```json
{
"devices": {
"inverters": {
"inv1": {
"max_power_w": 10000,
"battery_id": "bat1",
"dc_to_ac_efficiency_curve": [
[0.02, 0.80], [0.07, 0.93], [0.30, 0.96], [1.00, 0.95]
],
"dc_to_ac_efficiency_reference_load_fraction": 0.06
"inverter_profile": "generic-hybrid",
"profile_adjustment": {
"nominal_power_w": 10000,
"max_ac_charge_power_w": 5000
},
"battery_id": "bat1"
}
}
}
}
```
The technical data of the inverter comes from an **inverter profile** (see
[](#inverter-profiles)): the efficiency curves for battery discharge (DC→AC) and for charging
the battery from the grid (AC→DC), the AC charge power limit of the model and the power derating
over the ambient temperature. The inverter settings select the profile and describe how the unit
differs from it:
- `inverter_profile`: Name of the inverter profile. Default `generic-hybrid`.
- `profile_adjustment.nominal_power_w`: Nominal AC power of the installed inverter [W]. Replaces
the nominal power of the profile; required for a generic profile such as `generic-hybrid`.
- `profile_adjustment.max_power_w`: AC power limit of the installation [W], e.g. a configured
output limit. Can only lower the (derated) nominal power. Default `null`.
- `profile_adjustment.max_ac_charge_power_w`: AC charge power limit of the installation [W]. Can
only lower the limit of the profile. Set to `0` to disable AC charging. Default `null`.
- `dc_to_ac_efficiency_reference_load_fraction`: Load fraction of the maximum power at which the
DC→AC efficiency curve is evaluated where stored energy is valued without a specific discharge,
e.g. the energy left in the battery at the end of the horizon and the AC charge break-even.
Choose the typical load the battery serves. Default `0.06`.
The efficiency curves are over the load fraction, the AC power relative to the nominal power.
Real inverters are much less efficient at low load, e.g. when the battery serves a small
night-time base load. The efficiency is always the one at the AC power of the conversion: if the
battery limits a discharge (low state of charge or its power limit), the conversion is evaluated
at that lower load, not at the requested one; charging from the grid draws the AC energy at the
efficiency of the AC load actually drawn.
**Power derating:** inverters reduce their power when they get hot. EOS reads the ambient
temperature of the inverter from the measurement `<device_id>-temperature-degc` (e.g.
`inv1-temperature-degc`) at the start of each optimization and limits the maximum power and the
AC charge power by the derating of the profile at that temperature. Without a measurement in the
last hour EOS assumes 45 °C, where the `generic-hybrid` profile is not derated yet.
The resolved values are shown as read-only fields of the inverter configuration
(`effective_nominal_power_w`, `effective_max_power_w`, `effective_max_ac_charge_power_w`,
`effective_dc_to_ac_efficiency`, `effective_ac_to_dc_efficiency`), evaluated at 45 °C. If the
configured inverter profile does not exist or is invalid, the optimization uses `generic-hybrid`
with the profile adjustment instead and logs an error naming the inverter.
:::{admonition} Note
:class: note
Configurations of earlier versions are migrated automatically. `max_power_w` becomes
`profile_adjustment.nominal_power_w` and `max_ac_charge_power_w` moves into the profile
adjustment; an `ac_to_dc_efficiency` of `0` keeps AC charging disabled. The former fields
`ac_to_dc_efficiency`, `dc_to_ac_efficiency`, `dc_to_ac_efficiency_curve` and
`ac_charge_limits_total_charge` come from the inverter profile now and are dropped (logged as
error), so the efficiencies of the profile apply instead of the former default `1.0` (lossless).
To keep other values, save an own inverter profile and select it.
:::
#### Electric vehicle simulation configuration
**Example:**