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

Claim 4:
5. The method of claim 1, wherein S32 comprises:
initializing a state variable si of generator i by a formula of:

si(0)=di−αi 

where
si(0) represents an initial value of the state variable si of generator i,
di represents a load at generator i, and is equal to the initial power output of generator i,
αi represents a hypothetical power output of generator i obtained by linear extrapolation, under a zero marginal cost;
iteratively exchanging the state variable and updating the marginal cost λi by formulas of:, s
   i
   
    (
    
     k
     +
     1
    
    )
   
  
  =
  
   
    ∑
    
     j
     =
     1
    
    N
   
    
   
    
     q
     ij
    
    ⁢
    
     s
     j
     
      (
      k
      )
     
    
   
  
 

 
  
   λ
   i
   
    (
    
     k
     +
     1
    
    )
   
  
  =
  
   
    s
    i
    
     (
     
      k
      +
      1
     
     )
    
   
   /
   
    β
    i
   
  
 

where,
si(k) represents the state variable at the kth iteration of generator i,
si(k+1) represents the state variable at the (k+1)th iteration of generator i,
λi(k+1) represents the marginal cost at the (k+1)th iteration of generator i,
qij represents an element of the transition matrix,
βi represents a marginal growth rate of the marginal cost of generator i with respect to the power output of generator i;
determining whether the marginal cost satisfies the iteration termination condition, in which the iteration termination condition is that the iteration process is terminated when a marginal cost error is less than an error tolerance and is denoted by a formula of:

|λi(k+1)−λi(k)|<δ

where,
λik represents the marginal cost at the kth iteration of generator i,
δ represents the error tolerance;
in which the plan of the power output of each of the generators is generated based on si(k+1) when the iteration process terminates, and each of the generators outputs the power output based on the plan to perform the distributed dispatch.