完成基本多场景功能。

tests/test_storage_capacity.py

@@ -0,0 +1,86 @@
+"""测试储能容量计算"""
+import sys
+sys.path.append('src')
+from storage_optimization import calculate_energy_balance, SystemParameters
+
+# 使用简单的示例数据
+solar_output = [0.0] * 6 + [10.0, 20.0, 30.0, 40.0, 50.0, 60.0, 50.0, 40.0, 30.0, 20.0, 10.0, 0.0] + [0.0] * 6
+wind_output = [20.0, 30.0, 40.0, 30.0, 20.0, 10.0] * 4
+thermal_output = [50.0] * 24
+load_demand = [30.0, 40.0, 50.0, 60.0, 80.0, 100.0, 120.0, 140.0, 160.0, 180.0, 200.0, 180.0,
+               160.0, 140.0, 120.0, 100.0, 80.0, 60.0, 50.0, 40.0, 30.0, 20.0, 10.0, 20.0]
+
+# 系统参数
+params = SystemParameters(
+    max_curtailment_wind=0.1,
+    max_curtailment_solar=0.1,
+    max_grid_ratio=0.2,
+    storage_efficiency=0.9,
+    discharge_rate=1.0,
+    charge_rate=1.0,
+    max_storage_capacity=200.0  # 设置储能容量上限
+)
+
+# 测试不同储能容量下的储能状态
+test_capacities = [50.0, 100.0, 150.0, 200.0]
+
+print("="*70)
+print("测试不同储能容量下的实际最大储能状态")
+print("="*70)
+print(f"储能容量上限: {params.max_storage_capacity} MWh")
+print(f"充放电倍率: {params.charge_rate} C\n")
+
+for capacity in test_capacities:
+    result = calculate_energy_balance(
+        solar_output, wind_output, thermal_output, load_demand,
+        params, capacity, initial_soc=0.0
+    )
+    
+    storage_profile = result['storage_profile']
+    max_storage_state = max(storage_profile)
+    min_storage_state = min(storage_profile)
+    total_curtailed = sum(result['curtailed_wind']) + sum(result['curtailed_solar'])
+    
+    print(f"储能容量: {capacity:.1f} MWh")
+    print(f"  实际最大储能状态: {max_storage_state:.2f} MWh ({max_storage_state/capacity*100:.1f}%)")
+    print(f"  实际最小储能状态: {min_storage_state:.2f} MWh")
+    print(f"  总弃电量: {total_curtailed:.2f} MWh")
+    
+    # 检查是否有充电受限的情况
+    charge_profile = result['charge_profile']
+    discharge_profile = result['discharge_profile']
+    
+    max_possible_charge = capacity * params.charge_rate  # 最大充电功率
+    max_possible_discharge = capacity * params.discharge_rate  # 最大放电功率
+    
+    max_actual_charge = max(charge_profile)
+    max_actual_discharge = max(discharge_profile)
+    
+    print(f"  最大充电功率: {max_actual_charge:.2f} MW (限制: {max_possible_charge:.2f} MW)")
+    print(f"  最大放电功率: {max_actual_discharge:.2f} MW (限制: {max_possible_discharge:.2f} MW)")
+    
+    # 检查是否达到功率限制
+    charge_limited = any(c >= max_possible_charge * 0.99 for c in charge_profile)
+    discharge_limited = any(d >= max_possible_discharge * 0.99 for d in discharge_profile)
+    
+    if charge_limited:
+        print(f"  ⚠ 充电功率受限")
+    if discharge_limited:
+        print(f"  ⚠ 放电功率受限")
+    
+    # 检查储能容量利用率
+    utilization = max_storage_state / capacity * 100
+    if utilization < 90:
+        print(f"  ⚠ 储能容量利用率低 ({utilization:.1f}%)")
+    
+    print()
+
+print("="*70)
+print("分析：为什么实际储能状态达不到设定的储能容量上限？")
+print("="*70)
+print("可能的原因：")
+print("1. 电力供需平衡：如果发电量和负荷基本平衡，不需要大量储能")
+print("2. 充放电倍率限制：充放电功率受限，无法快速填满储能")
+print("3. 约束条件限制：弃风弃光率、上网电量比例等约束限制了储能使用")
+print("4. 周期性平衡要求：储能需要在周期结束时回到接近初始状态")
+print("5. 初始SOC设置：初始SOC从0开始，可能需要多周期才能稳定")