Patent ID: 11921170
Assignee: ELECTRONIC SAZAN FAN ARIA COMPANY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 6:
7. The method of claim 4, wherein each of compensating the first voltage phase, compensating the second voltage phase, compensating the third voltage phase, compensating the first current phase, and compensating the second current phase comprises:
measuring, utilizing the numerical relay, a first electric current passing through a first distribution line of the plurality of three-phase distribution lines;
measuring, utilizing the numerical relay, a second electric current passing through a second distribution line of the plurality of three-phase distribution lines;
measuring, utilizing the numerical relay, a third electric current passing through a third distribution line of the plurality of three-phase distribution lines;
calculating the positive sequence component according to an operation defined by the following:, I
      1
    
    ¯
  
  =
  
    
      
        
          I
          A
        
        ¯
      
      +
      
        α
        ⁢
        
          
            I
            B
          
          ¯
        
      
      +
      
        
          α
          2
        
        ⁢
        
          
            I
            C
          
          ¯
        
      
    
    3
  

 where:
I1 is a phasor of the positive sequence component,
IA is a phasor of the first electric current,, α
  =
  
   e
   
    j
    ⁢
    
     
      2
      ⁢
      π
     
     3
    
   
  
 

 where j is the imaginary unit,
IB is a phasor of the second electric current, and
IC a phasor of is the third electric current; and

calculating each of the first compensated voltage phase, the second compensated voltage phase, and third compensated voltage phase, the first compensated current phase, and the second compensated current phase according to an operation defined by the following:

ϕNE=ϕNE0−ϕI1 

 where
ϕNE0 represents each of the first voltage phase, the second voltage phase, the third voltage phase, the first current phase, the second current phase,
ϕI1 is the phase of the positive sequence component, and
ϕNE is a compensated phase corresponding to ϕNE0.