Patent ID: 11949353
Assignee: SANDEN CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. The motor control device according to claim 7, wherein the motor is a three-phase permanent magnet synchronous motor,
wherein when a q-axis current estimated value of the motor is iq (hat), a q-axis 6th order harmonic magnetic flux is k6hq, an electrical angle estimated value is θre (hat), the amplitude of an armature interlinkage magnetic flux 1st order component is ϕf, a q-axis winding inductance is Lq, and an electric angular velocity is ωre, the d-axis voltage feed forward command value Vdff* is given as follows:, [
     
      Math
      .
         
      19
     
     ]
    
   
   
    
   
  
  
   
    
     
      
       V
       dff
      
      *=
      
       
        
         
          i
          q
         
         ^
         
          
           k
           
            6
            ⁢
            hq
           
          
          (
          
           6
           ⁢
           
            
             θ
             re
            
            ^
           
          
          )
         
        
        
         ϕ
         f
        
       
       ⁢
       
        L
        q
       
       ⁢
       
        ω
        re
       
      
     
     ,
    
   
   
    
     (
     4
     ), and
wherein the feed forward command value calculation unit calculates the d-axis voltage feed forward command value Vdff* of the electrical angle 6th order by using the above equation (4).