refactor export limit semantics

backend/services/control/deye_helpers.py

@@ -19,9 +19,6 @@ DEYE_CLOCK_RESYNC_INTERVAL_HOURS = 24
 # Deye LV baterie: převod výkon -> proud pro registry 108/109.
 BATT_VOLTAGE_V = 51.2
 
-# Reg 143 ve SELL: min(|grid_setpoint_w|, ...) nesmí klesnout pod tuto podlahu (W).
-REG143_SELL_CAP_MIN_W = 200
-
 # Reg 178 - bitové pole: bity 4-5 (peak shaving switch) a bity 0-1 (MI export cutoff).
 REG178_SELL = 0b00100000
 REG178_PASSIVE = 0b00110000

backend/services/control/exporter_monolith.py

@@ -13,7 +13,6 @@ from services.control.deye_helpers import (
     DEYE_TOU_INACTIVE_HHMM,
     DEYE_TOU_POWER_REGS,
     PRAGUE_TZ,
-    REG143_SELL_CAP_MIN_W,
     REG178_MI_EXPORT_DISABLE,
     REG178_MI_EXPORT_ENABLE,
     REG178_MI_EXPORT_MASK,

backend/services/control/inverter.py

@@ -15,7 +15,6 @@ from services.control.deye_helpers import (
     DEYE_CLOCK_RESYNC_INTERVAL_HOURS,
     DEYE_TOU_INACTIVE_HHMM,
     PRAGUE_TZ,
-    REG143_SELL_CAP_MIN_W,
     REG178_MI_EXPORT_DISABLE,
     REG178_MI_EXPORT_ENABLE,
     REG178_MI_EXPORT_MASK,
@@ -103,8 +102,6 @@ async def write_inverter_setpoints(
         selling_mode = 0 if deye_mode == "SELL" else zero_exp_mode
         solar_sell = 0 if (setpoints_now.export_ban and deye_mode != "SELL") else 1
         export_limit = export_lim
-        if deye_mode == "SELL" and grid_w < 0:
-            export_limit = min(export_lim, max(REG143_SELL_CAP_MIN_W, abs(grid_w)))
         reg178_val = REG178_SELL if deye_mode == "SELL" else REG178_PASSIVE
 
         logger.info(

backend/services/control/models.py

@@ -39,6 +39,7 @@ class InverterConfig:
 @dataclass
 class ControlSetpoints:
     battery_w: int | None
+    #: Tvrdý limit exportu do sítě v daném slotu (W), ne forecastová cílová hodnota.
     grid_export_limit: int
     ev1_current_a: int
     ev2_current_a: int

backend/services/control/setpoints.py

@@ -81,6 +81,8 @@ def _build_setpoints(
         if pi is None:
             return None
         grid_sp = int(pi["grid_setpoint_w"] or 0)
+        export_limit_raw = pi.get("export_limit_w")
+        export_limit = int(export_limit_raw) if export_limit_raw is not None else abs(min(grid_sp, 0))
         ev1_w = int(pi["ev1_setpoint_w"] or 0) if "ev1_setpoint_w" in pi else 0
         ev2_w = int(pi["ev2_setpoint_w"] or 0) if "ev2_setpoint_w" in pi else 0
         hp_en = bool(pi["heat_pump_enabled"])
@@ -90,6 +92,10 @@ def _build_setpoints(
         pm: str | None = str(pm_raw).strip().upper() if pm_raw is not None else None
         sell_raw = pi.get("effective_sell_price")
         sell_f: float | None = float(sell_raw) if sell_raw is not None else None
+        export_mode_raw = pi.get("export_mode")
+        export_mode = str(export_mode_raw).strip().upper() if export_mode_raw is not None else None
+        if export_mode == "NONE":
+            export_limit = 0
         # Záporný výkup sám o sobě neblokuje export, pokud plán export explicitně žádá.
         export_ban = sell_f is not None and float(sell_f) < 0 and grid_sp >= 0
         gen_cutoff_raw = pi.get("deye_gen_cutoff_enabled")
@@ -112,7 +118,7 @@ def _build_setpoints(
                 pv_a_allowed = 0
         return ControlSetpoints(
             battery_w=int(pi["battery_setpoint_w"] or 0),
-            grid_export_limit=abs(min(grid_sp, 0)),
+            grid_export_limit=max(0, export_limit),
             ev1_current_a=watts_to_amps(ev1_w, phases=3),
             ev2_current_a=watts_to_amps(ev2_w, phases=1),
             heat_pump_enable=hp_en,