Patent ID: 11949238
Assignee: TSINGHUA UNIVERSITY
Field: Digital communication (Electrical engineering)
Classification: CPC G  H  Y | IPC G  H

Claim 1:
2. The method of claim 1, wherein S1 comprises:
S11, setting the marginal cost function of each of the generators by formulas of:, W
     i
    
    (
    
     p
     i
    
    )
   
   =
   
    
     
      
       (
       
        
         p
         i
        
        -
        
         α
         i
        
       
       )
      
      2
     
     
      2
      ⁢
      
       β
       i
      
     
    
    +
    
     γ
     i
    
   
  
  ,
  
   i
   =
   1
  
  ,
  2
  ,
  …
     
  ,
  N
 

 
  
   
    
     λ
     i
    
    (
    
     p
     i
    
    )
   
   
    =
    def
   
   
    
     
      ∂
      
       
        W
        i
       
       (
       
        p
        i
       
       )
      
     
     
      ∂
      
       p
       i
      
     
    
    =
    
     
      1
      
       β
       i
      
     
     ⁢
     
      (
      
       
        p
        i
       
       -
       
        α
        i
       
      
      )
     
    
   
  
  ,
  
   i
   =
   1
  
  ,
  2
  ,
  …
     
  ,
  N
 

where
Wi(pi) represents a cost function of a power output of generator i,
λi(pi) represents the marginal cost function of generator i,
N represents a number of the generators,
pi represents the power output of generator i,
γi represents a hypothetical minimum cost of generator i,
βi represents a marginal growth rate of a marginal cost of generator i with respect to the power output of generator i,
αi represents a hypothetical power output of generator i obtained by linear extrapolation, under a zero marginal cost; and
S12, determining the marginal growth rate βi based on the marginal cost function of generator i, and obtaining the hypothetical power output αi of generator i under the zero marginal cost by linear extrapolation based on the marginal growth rate βi, in which the key cost parameters comprise the marginal growth rate βi and the hypothetical power output αi.