87 lines
3.5 KiB
Python
87 lines
3.5 KiB
Python
"""测试储能容量计算"""
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import sys
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sys.path.append('src')
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from storage_optimization import calculate_energy_balance, SystemParameters
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# 使用简单的示例数据
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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
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wind_output = [20.0, 30.0, 40.0, 30.0, 20.0, 10.0] * 4
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thermal_output = [50.0] * 24
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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,
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160.0, 140.0, 120.0, 100.0, 80.0, 60.0, 50.0, 40.0, 30.0, 20.0, 10.0, 20.0]
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# 系统参数
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params = SystemParameters(
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max_curtailment_wind=0.1,
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max_curtailment_solar=0.1,
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max_grid_ratio=0.2,
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storage_efficiency=0.9,
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discharge_rate=1.0,
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charge_rate=1.0,
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max_storage_capacity=200.0 # 设置储能容量上限
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)
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# 测试不同储能容量下的储能状态
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test_capacities = [50.0, 100.0, 150.0, 200.0]
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print("="*70)
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print("测试不同储能容量下的实际最大储能状态")
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print("="*70)
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print(f"储能容量上限: {params.max_storage_capacity} MWh")
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print(f"充放电倍率: {params.charge_rate} C\n")
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for capacity in test_capacities:
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result = calculate_energy_balance(
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solar_output, wind_output, thermal_output, load_demand,
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params, capacity, initial_soc=0.0
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)
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storage_profile = result['storage_profile']
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max_storage_state = max(storage_profile)
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min_storage_state = min(storage_profile)
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total_curtailed = sum(result['curtailed_wind']) + sum(result['curtailed_solar'])
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print(f"储能容量: {capacity:.1f} MWh")
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print(f" 实际最大储能状态: {max_storage_state:.2f} MWh ({max_storage_state/capacity*100:.1f}%)")
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print(f" 实际最小储能状态: {min_storage_state:.2f} MWh")
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print(f" 总弃电量: {total_curtailed:.2f} MWh")
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# 检查是否有充电受限的情况
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charge_profile = result['charge_profile']
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discharge_profile = result['discharge_profile']
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max_possible_charge = capacity * params.charge_rate # 最大充电功率
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max_possible_discharge = capacity * params.discharge_rate # 最大放电功率
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max_actual_charge = max(charge_profile)
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max_actual_discharge = max(discharge_profile)
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print(f" 最大充电功率: {max_actual_charge:.2f} MW (限制: {max_possible_charge:.2f} MW)")
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print(f" 最大放电功率: {max_actual_discharge:.2f} MW (限制: {max_possible_discharge:.2f} MW)")
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# 检查是否达到功率限制
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charge_limited = any(c >= max_possible_charge * 0.99 for c in charge_profile)
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discharge_limited = any(d >= max_possible_discharge * 0.99 for d in discharge_profile)
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if charge_limited:
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print(f" ⚠ 充电功率受限")
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if discharge_limited:
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print(f" ⚠ 放电功率受限")
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# 检查储能容量利用率
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utilization = max_storage_state / capacity * 100
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if utilization < 90:
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print(f" ⚠ 储能容量利用率低 ({utilization:.1f}%)")
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print()
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print("="*70)
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print("分析：为什么实际储能状态达不到设定的储能容量上限？")
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print("="*70)
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print("可能的原因：")
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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")
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print("2. 充放电倍率限制：充放电功率受限，无法快速填满储能")
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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")
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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")
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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")
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