Patent ID: 11870373
Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. The system of claim 5, wherein the CPU further comprises program instructions configured to:
receive, from the current transducers, the measured current through each of the phase paths;
receive, from the encoder, the angular speed ωr of the rotor;
estimate a first torque value T and a first flux value ω of the OEIM from the measured currents and angular; speed ωr of the rotor;
predict a first torque value deviation and a first flux value deviation of the OEIM;
evaluate the set of first cost functions (J1) based on:, J
    1
   
   =
   
    
     
      
       ❘
       "\[LeftBracketingBar]"
      
      
       
        T
        ref
       
       -
       
        T
        
         k
         +
         2
        
       
      
      
       ❘
       "\[RightBracketingBar]"
      
     
     
      T
      rated
     
    
    +
    
     
      K
      ψ
     
     ⁢
     
      
       
        ❘
        "\[LeftBracketingBar]"
       
       
        
         
         
          ψ
          s
          ref
         
         
        
        -
        
         
         
          ψ
          s
          
           k
           +
           2
          
         
         
        
       
       
        ❘
        "\[RightBracketingBar]"
       
      
      
       
       
        ψ
        s_rated
       
       
      
     
    
   
  
  ,, for each voltage vector, k, of the first set of voltage vectors, where k=1 to 61; and
generate a voltage vector which minimizes the torque value deviations and the flux value deviations of the three-phase induction motor.