Patent ID: 11901733
Assignee: QINGYUAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 6:
7. The hybrid passive power filter of claim 6, wherein equivalent impedance of the harmonic current absorbing branch at an n-th harmonic, which absorbs an m-th harmonic, satisfies a following relationship:, Z
   F
   
    (
    n
    )
   
  
  =
  
   
    j
    ⁢
    n
    ⁢
    ω
    ⁢
    
     
      l
      5
     
     (
     
      
       1
       
        
         m
         2
        
        -
        1
       
      
      -
      
       1
       
        
         n
         2
        
        -
        1
       
      
     
     )
    
   
   =
   
    j
    ⁢
    
     
      
       n
       2
      
      -
      
       m
       2
      
     
     
      
       n
       2
      
      -
      1
     
    
    ⁢
    n
    ⁢
    ω
    ⁢
    
     l
     4
    
   
  
 

wherein ω denotes a resonant angular frequency, l4 denotes an inductance of the fourth inductor, and l5 denotes an inductance of the fifth inductor.