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ADE7755 Production
The ADE7755 is a high accuracy electrical energy measurement IC. The part specifications surpass the accuracy requirements as quoted in the IEC 1036 standard...
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ADE7755 on Analog.com

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ADE7755: Active and Harmonic Power



		

			

									
					    firana
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Oct 20, 2014 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Hello
    
 
    In this link
    
 
    http://www.analog.com/static/imported-files/data_sheets/ADE7755.pdf  at page 13, it shows the formula of harmonic power. 
    
 
    
 
    I do know that active power is being measured by multiplying instantaneously both voltage and current without including the power factor. But is the measurement is correct event without considering the power factor ?
    
 
    But, in Figure 23 at page 12 also shows the power factor also being included. So,  for the  energy meter practical simulation, how does the harmonic power factor being detected for power measurement?  It is just I'm being confused on how does the power factor and also harmonic power factor being detected in this meter to measured the active power.
    
 
    Thanks a lot.
    
									
			        
		
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	















    
	
    
	
    
					



			








	
	
	
	



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      •  Analog Employees  
      
            
			                            
                        
                on Oct 23, 2014 6:52 AM
            
            
					
      
	
      

		
		
      
					
      Hi firana
      
 
      This statement isn't true:
      
 
      I do know that active power is being measured by multiplying instantaneously both voltage and current without including the power factor.
      
 
      The active power computation considers the phase angle between V and I , even in case of harmonics. Power factor is essentially cosine of the phase angle between V and I. You can see the cosine component in the equation that you have referred in your post.
      
 
      Regards
      
 
      hmani
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
				
						
				
				
		
		
      
			
		
      
	
      

      

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      •  Analog Employees  
      
            
			                            
                        
                on Oct 23, 2014 6:52 AM
            
            
					
      
	
      

		
		
      
					
      Hi firana
      
 
      This statement isn't true:
      
 
      I do know that active power is being measured by multiplying instantaneously both voltage and current without including the power factor.
      
 
      The active power computation considers the phase angle between V and I , even in case of harmonics. Power factor is essentially cosine of the phase angle between V and I. You can see the cosine component in the equation that you have referred in your post.
      
 
      Regards
      
 
      hmani
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
				
						
				
				
		
		
      
			
		
      
	
      

      

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