54 lines
3.4 KiB
Python
54 lines
3.4 KiB
Python
from config import pv_config, ess_config, grid_config
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import pandas as pd
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class EnergySystem:
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def __init__(self, pv_type: pv_config, ess_type: ess_config, grid_type: grid_config):
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self.pv = pv_type
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self.ess = ess_type
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self.grid = grid_type
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# 优先使用PV供电给工厂 - 如果PV输出能满足工厂的需求，则直接供电，多余的电能用来给ESS充电。
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# PV不足时使用ESS补充 - 如果PV输出不足以满足工厂需求，首先从ESS获取所需电量。
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# 如果ESS也不足以满足需求，再从电网获取 - 当ESS中的存储电量也不足以补充时，再从电网购买剩余所需电量。
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def simulate(self, data, time_interval):
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total_benefit = 0
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for index, row in data.iterrows():
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time = row['time']
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sunlight_intensity = row['sunlight']
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factory_demand = row['demand']
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electricity_price = self.grid.get_price_for_time(time)
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generated_pv_power = self.pv.capacity * sunlight_intensity # 生成的功率，单位 kW
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generated_pv_energy = generated_pv_power * time_interval * self.pv.loss # 生成的能量，单位 kWh
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if generated_pv_energy >= factory_demand * time_interval:
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# 剩余的能量(kwh) = pv生成的能量 - 工厂需求的功率 * 时间间隔
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surplus_energy = generated_pv_energy - factory_demand * time_interval
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# 要充到ess中的能量 = min(剩余的能量,ess的充电功率*时间间隔(ess在时间间隔内能充进的电量),ess的容量-ess储存的能量(ess中能冲进去的电量))
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charge_to_ess = min(surplus_energy, self.ess.charge_power * time_interval, self.ess.capacity - self.ess.storage)
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self.ess.storage += charge_to_ess
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surplus_after_ess = surplus_energy - charge_to_ess
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# 如果还有电量盈余,且pv功率大于ess的充电功率+工厂的需求功率则准备卖电
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if surplus_after_ess > 0 and generated_pv_power > self.ess.charge_power + factory_demand:
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sold_to_grid = surplus_after_ess
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sell_income = sold_to_grid * self.grid.sell_price
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total_benefit += sell_income
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# 节省的能量 = 工厂需求的能量 * 时间段
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total_energy = factory_demand * time_interval
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else:
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needed_from_ess = factory_demand * time_interval - generated_pv_energy
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if self.ess.storage >= needed_from_ess:
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discharging_power = min(self.ess.discharge_power * time_interval, needed_from_ess)
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self.ess.storage -= discharging_power
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total_energy = generated_pv_energy + discharging_power
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else:
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total_energy = generated_pv_energy + self.ess.storage
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self.ess.storage = 0
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needed_from_grid = factory_demand * time_interval - total_energy
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net_grid = min(self.grid.capacity * time_interval, needed_from_grid) * (1 - self.grid.loss)
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total_energy += net_grid
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print(total_energy)
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unmet_demand = max(0, factory_demand * time_interval - total_energy)
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benefit = (total_energy - unmet_demand) * electricity_price
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total_benefit += benefit
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return total_benefit |