Patent ID: 11870292
Assignee: LG ENERGY SOLUTION, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H | IPC B  H

Claim 3:
4. The apparatus for controlling power of a parallel multi pack system according to claim 1, wherein the multi pack management unit is further configured to calculate the total power of the parallel multi pack system using the following equation:, P
      total
    
    =
    
      
        min
        ⁡
        
          (
          
            P
            
              pack
              ,
              k
            
          
          )
        
      
      *
      
        
          min
          ⁡
          
            (
            
              R
              
                pack
                ,
                k
              
            
            )
          
        
        /
        
          R
          system
        
      
    
  

  
    
      
        R
        system
      
      =
      
        
          [
          
            Σ
            ⁡
            
              (
              
                1
                /
                
                  R
                  
                    pack
                    ,
                    k
                  
                
              
              )
            
          
          ]
        
        
          -
          1
        
      
    
    ,
  

where:
k is an integer from 1 to n,
n is the number of battery packs,
Ptotal is the total power of the parallel multi pack system,
Ppack,k is a pack power of a kth battery pack; Rpack,k is a pack resistance of the kth battery pack,
Rsystem is a total resistance of the parallel multi pack system, and
min( ) is a function that returns a minimum value among a plurality of input variables.