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Fix: PV charging min-current release ignores battery/surplus switch-off threshold #3811

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Fix: PV charging min-current release ignores battery/surplus switch-off threshold #3811

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59964a0
Implement minimum current checks for PV-only mode
seaspotter Aug 17, 2026
7bad858
Refine comments on power checks in min_current.py
seaspotter Aug 17, 2026
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15 changes: 15 additions & 0 deletions packages/control/algorithm/min_current.py
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,21 @@ def set_min_current(self) -> None:
cp = preferenced_chargepoints[0]
missing_currents, counts = common.get_min_current(cp)
if max(missing_currents) > 0:
# Nur beim (Neu-)Start prüfen, ob laut Speicher-/Überschussberechnung überhaupt
# Leistung vorhanden ist. Ein bereits laufender Ladevorgang wird weiterhin von
# switch_off_check_threshold() mit der korrekten Verzögerung behandelt - hier NICHT
# eingreifen, sonst wird die switch_off_delay-Hysterese umgangen (siehe Tests
# test_surplus[switch off delay for two of three charging] und test_phase_switch).
if (mode_tuple in CONSIDERED_CHARGE_MODES_PV_ONLY and
cp.data.get.charge_state is False):
power_in_use, threshold = counter.calc_switch_off(cp)
if power_in_use > threshold:
common.set_current_counterdiff(-(cp.data.set.current or 0), 0, cp)
cp.set_state_and_log(
"Mindeststrom kann nicht freigegeben werden, da laut Speicher- und "
"PV-Überschussberechnung keine ausreichende Leistung zur Verfügung steht.")
preferenced_chargepoints.pop(0)
continue
available_currents, limit = Loadmanagement().get_available_currents(
missing_currents, counter, cp)
if limit.limiting_value is not None:
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