Patent ID: 11888386
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. The power conversion device according to claim 6, wherein
the single pulse voltage has a zero value at a phase ranging from zero to α, from π−α to π+α, and from 2π−α to 2π, a positive value at a phase ranging from α to π−α, and a negative value at a phase ranging from π+α to 2π−α, based on a phase and on a phase angle α of the sinusoidal phase voltage commands, and
the phase angle α is determined by Equation (1) below, where vphp represents an amplitude of the sinusoidal phase voltage commands, and vmdc represents a direct current voltage from the three-phase three-level inverter, [
     
      Formula
      ⁢
         
      1
     
     ]
    
   
   
     
   
  
 

 
  
   
    
                                                                
     
      α
      =
      
       
        
         cos
         
          -
          1
         
        
        (
        
         
          v
          
           p
           ⁢
           h
           ⁢
           p
          
         
         ⁢
         
          π
          
           2
           ⁢
           
            v
            mdc
           
          
         
        
        )
       
       .
      
     
    
   
   
    
     (
     1
     )