Patent ID: 11862982
Assignee: NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 8:
9. The method according to claim 8, wherein a mathematical expression of the confidence function is:, C
     i
    
    (
    
     k
     +
     1
    
    )
   
   =
   
    1
    -
    
     
      
       e
       i
      
      (
      k
      )
     
     
      
       P
       i
       *
      
      (
      k
      )
     
    
   
  
  ,
  
   i
   =
   1
  
  ,
  2
  ,
  
   …
   ⁢
      
   N
  
 

wherein, Ci(k+1) is a confidence function at a time k+1, Pi*(k) is a power reference value at a time k of an ith power generation unit, and ei(k)=|Pi(k)−Pi*(k)|δ is a power deviation function at the time k of the ith power generation unit, and is defined as:, ❘
     "\[LeftBracketingBar]"
    
    
     
      
       P
       i
      
      (
      k
      )
     
     -
     
      
       P
       i
       *
      
      (
      k
      )
     
    
    
     ❘
     "\[RightBracketingBar]"
    
   
   δ
  
  =
  
   {
   
    
     
      
       
        
         ❘
         "\[LeftBracketingBar]"
        
        
         
          
           P
           i
          
          (
          k
          )
         
         -
         
          
           P
           i
           *
          
          (
          k
          )
         
        
        
         ❘
         "\[RightBracketingBar]"
        
       
       ,
        
       
        
         
          ❘
          "\[LeftBracketingBar]"
         
         
          
           
            P
            i
           
           (
           k
           )
          
          -
          
           
            P
            i
            *
           
           (
           k
           )
          
         
         
          ❘
          "\[RightBracketingBar]"
         
        
        >
        δ
       
      
     
    
    
     
      
       0
       ,
       
        
         
          ❘
          "\[LeftBracketingBar]"
         
         
          
           
            P
            i
           
           (
           k
           )
          
          -
          
           
            P
            i
            *
           
           (
           k
           )
          
         
         
          ❘
          "\[RightBracketingBar]"
         
        
        <=
        δ
       
      
     
    
   
  
 

wherein, δ is a set threshold for preventing a confidence decrease in presence of normal power fluctuations, and Pi(k) is active power of the ith power generation unit at the time k.