update pv yield code

EnergySystem.py

@@ -39,7 +39,8 @@ class EnergySystem:
         total_gen = 0
         for index, row in data.iterrows():
             time = row['time']
-            sunlight_intensity = row['sunlight']
+            # sunlight_intensity = row['sunlight']
+            pv_yield = row['PV yield[kW/kWp]']
             factory_demand = row['demand']
             electricity_price = row['buy']
             sell_price = row['sell']
@@ -55,7 +56,7 @@ class EnergySystem:
                 soc = self.ess.storage / self.ess.capacity
                 self.hour_stored_2.append(soc)
 
-            generated_pv_power = self.pv.capacity * sunlight_intensity  # 生成的功率，单位 kW
+            generated_pv_power = self.pv.capacity * pv_yield# 生成的功率，单位 kW
             generated_pv_energy = generated_pv_power * time_interval * self.pv.loss  # 生成的能量，单位 kWh
             self.generated += generated_pv_energy
             # pv生成的能量如果比工厂的需求要大