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Add per-consumer accepted import tolerance for wallboxes

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With a 4.6kW inverter and 4kW WallboxB + ~450W house load, any PV dip
causes brief grid import and would trigger shutdown/restart cycling.

New config: wallbox_a_accepted_import_w / wallbox_b_accepted_import_w
WallboxB set to 600W: engine skips shutdown if import <= 600W, keeping
the car charging through short cloud shadows. WallboxA disabled (2kW
leaves sufficient inverter headroom without needing tolerance).

Logic: shutdownLastConsumer checks per-consumer tolerance before
applying min-runtime and initiating turn-off.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Lutz FInsterle
2026-04-06 19:34:18 +02:00
parent 009f8b05f3
commit fc535d395c
3 changed files with 28 additions and 5 deletions
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8
internal/config/config.go
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@@ -109,9 +109,11 @@ type PowerThresholds struct {
// ConsumersConfig holds per-consumer behavior thresholds.
type ConsumersConfig struct {
CompressorIdleW int `yaml:"compressor_idle_w"` // below this = heat pump compressor idle (W)
WallboxMinChargeW int `yaml:"wallbox_min_charge_w"` // below this = car not charging (W)
IdleCycles int `yaml:"idle_cycles"` // consecutive idle cycles before early release
CompressorIdleW int `yaml:"compressor_idle_w"` // below this = heat pump compressor idle (W)
WallboxMinChargeW int `yaml:"wallbox_min_charge_w"` // below this = car not charging (W)
IdleCycles int `yaml:"idle_cycles"` // consecutive idle cycles before early release
WallboxAAcceptedImportW float64 `yaml:"wallbox_a_accepted_import_w"` // tolerate this much grid import while WallboxA is running (0 = disabled)
WallboxBAcceptedImportW float64 `yaml:"wallbox_b_accepted_import_w"` // tolerate this much grid import while WallboxB is running (0 = disabled)
}
// StrategicConfig holds PV forecast based strategic settings.