Patent ID: 11933849
Assignee: DELTA ELECTRONICS, INC.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 10:
11. The motor detection device according to claim 9, wherein the feedback control circuit obtains a first equation through the dq-axes signal, the motor feedback signal and the stator resistance, wherein the first equation is:, v
     d
     *
    
    -
    
     
      R
      s
     
     ⁢
     
      i
      d
     
    
   
   =
   
    
     
      L
      d
     
     (
     
      i
      d
     
     )
    
    ⁢
    
     d
     dt
    
    ⁢
    
     i
     d
    
   
  
  ,
 

where vd* is a d-axis voltage component of the dq-axes signal, Rs is the stator resistance, id is the d-axis current component of the motor feedback signal, Ld is the d-axis inductance of the reluctance motor; and
the feedback control circuit integrates and shifts a left-hand side and a right-hand side of the first equation to obtain a first curve of the d-axis inductance.