oprava zbytecneho curtailu A

backend/tests/test_planning_dispatch_milp.py

@@ -3664,6 +3664,54 @@ class PreNegativeSellExportTests(unittest.TestCase):
         self.assertLess(r0.pv_a_curtailed_w, 500, "pole A nesmí jít do curtail při sell>0 před neg")
         self.assertLess(r0.grid_setpoint_w, -4000, "export přebytku A+B do site")
 
+    def test_ba81_dawn_low_pv_no_full_curtail_for_mi_cap(self) -> None:
+        """Úsvit: malé pole A + MI — ne plný curtail A kvůli ge_pv≤pv_b (reg 340)."""
+        prague = ZoneInfo("Europe/Prague")
+        slot = PlanningSlot(
+            interval_start=datetime(2026, 5, 31, 5, 15, tzinfo=prague).astimezone(timezone.utc),
+            buy_price=3.088,
+            sell_price=2.95,
+            pv_a_forecast_w=405,
+            pv_b_forecast_w=49,
+            load_baseline_w=400,
+            ev1_connected=False,
+            ev2_connected=False,
+            allow_charge=True,
+            allow_discharge_export=True,
+            charge_acquisition_buy_czk_kwh=3.088,
+            future_sell_opportunity_czk_kwh=6.5,
+        )
+        battery = _battery(uc_wh=12_500.0, min_pct=10.0, arb_pct=30.0)
+        battery.max_charge_power_w = 6250
+        hp = SimpleNamespace(rated_heating_power_w=0, tuv_min_temp_c=45.0, tuv_target_temp_c=55.0)
+        grid = SimpleNamespace(
+            max_import_power_w=17_000,
+            max_export_power_w=8000,
+            block_export_on_negative_sell=False,
+            purchase_pricing_mode="fixed",
+        )
+        vehicles = [
+            SimpleNamespace(max_charge_power_w=0, battery_capacity_kwh=1.0, default_target_soc_pct=80.0),
+            SimpleNamespace(max_charge_power_w=0, battery_capacity_kwh=1.0, default_target_soc_pct=80.0),
+        ]
+        res, _, _ = solve_dispatch(
+            [slot],
+            battery,
+            hp,
+            grid,
+            [None, None],
+            vehicles,
+            0.12 * battery.soc_max_wh,
+            50.0,
+            operating_mode="AUTO",
+        )
+        r = res[0]
+        self.assertLess(
+            r.pv_a_curtailed_w,
+            int(slot.pv_a_forecast_w) - 50,
+            "nesmí useknout celé A kvůli fixed_pv_b_export_cap",
+        )
+
     def test_rolling_horizon_drains_to_reserve_before_first_neg(self) -> None:
         """Rolling bez D−1 večera: výboj před 1. sell<0 na reserve (+ slack)."""
         prague = ZoneInfo("Europe/Prague")
@@ -3722,7 +3770,7 @@ class PreNegativeSellExportTests(unittest.TestCase):
                     interval_start=(base + timedelta(minutes=15 * i)).astimezone(timezone.utc),
                     buy_price=6.35,
                     sell_price=sell,
-                    pv_a_forecast_w=800 if sell < 4 else 200,
+                    pv_a_forecast_w=4500 if i < 4 else (800 if sell < 4 else 200),
                     pv_b_forecast_w=0,
                     load_baseline_w=400,
                     ev1_connected=False,
@@ -3759,7 +3807,15 @@ class PreNegativeSellExportTests(unittest.TestCase):
             operating_mode="AUTO",
         )
         self.assertLess(res[10].grid_setpoint_w, -500, "20:15 sell<buy: vývoz bat, ne jen peak 19:45")
-        self.assertLess(res[0].pv_a_curtailed_w, 500, "17:15: FVE do sítě, ne curtail")
+        for i in range(4):
+            self.assertNotEqual(
+                res[i].export_mode,
+                "BATTERY_SELL",
+                f"slot {i}: při FVE přebytku ne vývoz z baterie",
+            )
+        self.assertEqual(res[1].export_mode, "PV_SURPLUS")
+        self.assertGreater(abs(res[1].grid_setpoint_w), 500)
+        self.assertLess(abs(res[1].battery_setpoint_w), 500)
 
 
 class Home01PvStoreValueTests(unittest.TestCase):