Patent ID: 11927610
Assignee: SCHWEITZER ENGINEERING LABORATORIES, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H  Y | IPC G

Claim 13:
14. The non-transitory, computer-readable medium of claim 13, wherein the first fractional prony window measurement energy value and the second fractional prony window measurement energy value are determined as:, E
     ˆ
    
    
     
      y
      ˆ
     
     L
    
   
   [
   n
   ]
  
  =
  
   
    ∑
    
     j
     =
     
      n
      -
      L
      +
      1
     
    
    n
   
   
    
     
      
       ❘
       "\[LeftBracketingBar]"
      
      
       
        y
        ˆ
       
       [
       j
       ]
      
      
       ❘
       "\[RightBracketingBar]"
      
     
     2
    
    ⁢
       
    and
   
  
 

 
  
   
    
     E
     ˆ
    
    
     
      y
      ˆ
     
     
      N
      -
      L
     
    
   
   [
   n
   ]
  
  =
  
   
    ∑
    
     j
     =
     
      n
      -
      N
      +
      1
     
    
    
     n
     -
     L
    
   
   
    
     
      ❘
      "\[LeftBracketingBar]"
     
     
      
       y
       ˆ
      
      [
      j
      ]
     
     
      ❘
      "\[RightBracketingBar]"
     
    
    2, where ŷ is an electrical measurement at time j, n is an index of the electrical measurement in which ringdown analysis is being performed, L is a preset value that partitions the first set of electrical measurements and the second set of electrical measurements, and N is the total number of samples in the first set of electrical measurements and the second set of electrical measurements.