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SPACE VECTOR MODULATION TMS320F2812

FREDDY TAN
Prodigy 60 points
Other Parts Discussed in Thread: TMS320F2812

Hi 


I am a new beginner using DSP 2812 for space vector modulation using software module. I am using switching frequency 10kHz and 200samples for sine waves.


1.To generate Valpha and Vbeta using the equation

 d[i]  = 2*(Va[i]-0.5*Vb[i]-0.5*Vc[i])/3;
	q[i]  = 2*(0.5*sqrt(3)*Vb[i]-0.5*sqrt(3)*Vc[i])/3;
	alpha[i] = atan (q[i]/d[i]);


2.To determine the T


 t1[i] = Ts*M*sin(pi/3-alpha[i]))/sin(pi/3);
	t2[i] = Ts*M*sin(alpha[i]))/sin(pi/3);
	t0[i]  = Ts-y2[i]-y1[i];




I set EvaRegs.T1PR = 3750 


and


	EvaRegs.CMPR1=EvaRegs.T1PR*t1[i];
	EvaRegs.CMPR2=EvaRegs.T1PR*t2[i];
	EvaRegs.CMPR3=EvaRegs.T1PR*t0[i];


depending on the sector.




Is that any advice? I couldn't get any waveform.

								


				
				

				
			

		

			
						
									
                			    			                        
						
						
			
			
						
			                        
			
			
				
			  
			

			     
			

		


				    			

						
















	

	

					
    
	
    





		
	
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                          Prodigy
                        60 points
                      
    
                          
                   		
		
    
					
    

    

    I am a beginner for DSP TMS320F2812 user. I would like to ask your assistant for the space vector modulation. 
    

    

    I've been following the step according to SVGEN_DQ exactly however I do not get the proper modulation. 
    

    1.To get Ualpha and Ubeta, we just using the clarke transformation? Or we need to further transform it using park and inverse park transformation?
    

    

    Please help me. Send me a sample code if possible. I appreciate your help. Thanks.
    

    

    

    
			
    

		
		
		
		
	
    
	
    
		
    
	
    

	            
                	
	
    
				
		                
                
                
                
                
                
                
        		
		
				
    
		
		 
		
		
     
    
	
    

    
			
    
			
    
		
    

		
    
	
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