Patent ID: 11878602
Assignee: STATE GRID FUJIAN ELECTRIC POWER COMPANY LIMITED
Field: Computer technology (Electrical engineering)
Classification: CPC B  H  G  Y | IPC B  G  H

Claim 1:
2. The method for establishing an active distribution network planning model considering location and capacity determination of an electric vehicle charging station according to claim 1, wherein step S2 particularly comprises:
establishing the active distribution network model, and sampling, based on a time series method, typical output and different types of typical load curves of distributed generation comprising wind power and photovoltaic, to obtain a DG output value PDGt(t) and a load value PLt(t) of the node i at the time t; and establishing an energy storage model based on an equivalent load principle, an energy storage element adjusting strategy being as follows:
calculating an equivalent load Peqi and an average equivalent load Pavi of the node i at the time t,, P
            eqi
          
          ⁡
          
            (
            t
            )
          
        
        =
        
          
            
              P
              Li
            
            ⁡
            
              (
              t
              )
            
          
          -
          
            
              P
              DGi
            
            ⁡
            
              (
              t
              )
            
          
        
      
    
    
      
        (
        13
        )
      
    
  
  
    
      
        
          P
          avi
        
        =
        
          
            ∑
            
              t
              =
              1
            
            24
          
          ⁢
          
            
              
                P
                eqi
              
              ⁡
              
                (
                t
                )
              
            
            /
            24
          
        
      
    
    
      
        (
        14
        )
      
    
  

in the formulas: PLi(t) and PDGi(t) represent a load value and a DG output value of the node i at the time t; and
the energy storage element adjusting strategy is particularly as follows:
when Peqi(t)+ΔP1<<Pavt, an accumulator is charged, and ΔP1 is a charge power;
if |Peqi(t)+ΔP1−Pavt|≤δPavt is met, the accumulator is charged; δ represents a fluctuation coefficient of Peqi around a mean value thereof;
when Peqi(t)−ΔP2>>Pavi, the accumulator is discharged, and ΔP2 is a discharge power; and, if |Peqi(t)−ΔP−Pavt|≤δPavt is met, the accumulator is discharged.