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

Claim 5:
6. The motor control device according to claim 1, 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 wiring resistance is R, a q-axis winding inductance is Lq, and an electric angular velocity is cow, the q-axis voltage feed forward command value Vqff* is given as follows:, [
     
      Math
      .
         
      18
     
     ]
    
   
   
    
   
  
  
   
    
     
      
       V
       qff
      
      *=
      
       
        
         
          i
          q
         
         ^
         
          
           k
           
            6
            ⁢
            hq
           
          
          (
          
           6
           ⁢
           
            
             θ
             re
            
            ^
            
             +
             
              tan
              
               -
               1
              
             
            
           
           ⁢
           
            
             6
             ⁢
             
              ω
              re
             
             ⁢
             
              L
              q
             
            
            R
           
          
          )
         
        
        
         ϕ
         f
        
       
       ⁢
       
        
         
          R
          2
         
         +
         
          
           (
           
            6
            ⁢
            
             ω
             re
            
            ⁢
            
             L
             q
            
           
           )
          
          2
         
        
       
      
     
     ,
    
   
   
    
     (
     3
     ), and
wherein the feed forward command value calculation unit calculates the q-axis voltage feed forward command value Vqff* of the electrical angle 6th order by using the above equation (3).