Patent ID: 11967825
Assignee: HEFEI UNIVERSITY OF TECHNOLOGY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 1:
2. The stability control method for the VSG in the strong grid based on the inductance-current differential feedback according to claim 1, wherein the equation for transforming the voltages in the three-phase static coordinate system into the voltages in the two-phase static coordinate system in step 2 is:, [
    
     
      
       
        U
        α
       
      
     
     
      
       
        U
        β
       
      
     
    
    ]
   
   =
   
    
     [
     
      
       
        1
       
       
        
         -
         
          1
          2
         
        
       
       
        
         -
         
          1
          2
         
        
       
      
      
       
        0
       
       
        
         
          3
         
         2
        
       
       
        
         -
         
          
           3
          
          2
         
        
       
      
     
     ]
    
    [
    
     
      
       
        U
        a
       
      
     
     
      
       
        U
        b
       
      
     
     
      
       
        U
        c
       
      
     
    
    ]
   
  
  ,, and
the equation for transforming the currents in the three-phase static coordinate system into the currents in the two-phase static coordinate system in step 2 is:, [
   
    
     
      
       I
       
        L
        ⁢
        α
       
      
     
    
    
     
      
       I
       
        L
        ⁢
        β
       
      
     
    
   
   ]
  
  =
  
   
    
     [
     
      
       
        1
       
       
        
         -
         
          1
          2
         
        
       
       
        
         -
         
          1
          2
         
        
       
      
      
       
        0
       
       
        
         
          3
         
         2
        
       
       
        
         -
         
          
           3
          
          2
         
        
       
      
     
     ]
    
    [
    
     
      
       
        I
        
         L
         ⁢
         a
        
       
      
     
     
      
       
        I
        Lb
       
      
     
     
      
       
        I
        Lc
       
      
     
    
    ]
   
   .