1. % Space Vector Modulation Scheme
  2. % Daniel Amireh
  3.  
  4. clc
  5. clear all
  6.  
  7. % Input Parameters
  8. Vdc = 400;          % DC Voltage
  9. Lf = 800e-6;        % Inductance 
  10. Cf = 400e-6;        % Capacitance
  11. Lload = 2e-3;       % Load Inductance
  12. Rload = 5;          % Load Resistance
  13. f = 50;             % Frequency
  14. w = 2 * pi * 50;    % Angular Frequency
  15. Tz = 100e-6;        % Sampling Time
  16. Vref = (2/3)*Vdc;   % Reference Voltage
  17.  
  18. % Generation and plotting of PWM
  19.  
  20. for i=1:600
  21.     if i>=300 && i<=600
  22.         v0(i)=1
  23.     else
  24.         v0(i)=0
  25.     end
  26.     if i<=100 || i>=400
  27.         v1(i)=1
  28.     else
  29.         v1(i)=0
  30.     end
  31.     if i<=200 || i>=500
  32.         v2(i)=1
  33.     else
  34.         v2(i)=0
  35.     end
  36.     if i>=100 && i<=200 || i>=300 && i<=400 || i>=500 
  37.         v3(i)=1
  38.     else
  39.         v3(i)=0
  40.     end
  41.     if i>=100 && i<=400 
  42.         v4(i)=1
  43.     else
  44.         v4(i)=0
  45.     end
  46.     if i>=200 && i<=500
  47.         v5(i)=1
  48.     else
  49.         v5(i)=0
  50.     end
  51.     if i<=100 || i>=200 && i<=300 || i>=400 && i<=500
  52.         v6(i)=1
  53.     else
  54.         v6(i)=0
  55.     end
  56.     if i<=300
  57.         v7(i)=1
  58.     else
  59.         v7(i)=0
  60.     end
  61.  
  62. end
  63.  
  64.  
  65. % plot results
  66. i=1:600
  67. figure
  68. subplot(4,1,1)      % subplot used to plot more than one graph on the same graph
  69.     title('PWM siganls using SVM tehnique') %set title
  70.     ylabel('V0')    % set y-axis label
  71.     grid on
  72.     plot(i/600,v0) 
  73.     ylim([0 2])
  74.  
  75. subplot(4,1,2)
  76.     ylabel('V1')
  77.     grid on
  78.     ylim([0 2])
  79.     plot(i/600,v1)
  80.  
  81. subplot(4,1,3)
  82.     ylabel('V2')
  83.     grid on
  84.     ylim([0 2])
  85.     plot(i/600,v2)
  86.  
  87. subplot(4,1,4)
  88.     ylabel('V3')
  89.     grid on
  90.     figure
  91.     ylim([0 2])
  92.     plot(i/600,v3)
  93.  
  94. subplot(4,1,1)
  95.     plot(i/600,v4)
  96.     ylabel('V4')
  97.     grid on
  98.     title('PWM siganls using SVM tehnique')
  99.     ylim([0 2])
  100.  
  101. subplot(4,1,2)
  102.     plot(i/600,v5)
  103.     ylabel('V5')
  104.     grid on
  105.     ylim([0 2])
  106.  
  107. subplot(4,1,3)
  108.     plot(i/600,v6)
  109.     ylabel('V6')
  110.     grid on
  111.     ylim([0 2])
  112.  
  113. subplot(4,1,4)
  114.     plot(i/600,v7)
  115.     ylabel('V7')
  116.     grid on
  117.     ylim([0 2])
  118.  
  119. % line to line voltage plots VLAB, VLBC and VLCA
  120. figure
  121. subplot(3,1,1)
  122.     t=.9:.001:1;
  123.     f=400;
  124.     V=300*sin(f*t)
  125.     plot(t,V)
  126.     grid on 
  127.     title('Line to line voltages')
  128.     ylim([-400 400])
  129.     ylabel('VLAB')
  130.  
  131. subplot(3,1,2)
  132.     t=.9:.001:1;
  133.     f=400;
  134.     V=300*sin(f*t+120)
  135.     plot(t,V)
  136.     grid on 
  137.     ylim([-400 400])
  138.     ylabel('VLBC')
  139.  
  140. subplot(3,1,3)
  141.     t=.9:.001:1;
  142.     f=400;
  143.     V=300*sin(f*t+240)
  144.     plot(t,V)
  145.     grid on 
  146.     ylim([-400 400])
  147.     ylabel('VLCA')
  148.  
  149. % Phase voltage plots VLAB, VLBC and VLCA
  150. figure
  151. subplot(3,1,1)
  152.     t=.9:.001:1;
  153.     f=400;
  154.     V=300*sin(f*t)*2/3 % Phase voltage from line-to-line voltage
  155.     plot(t,V)
  156.     grid on 
  157.     title('Phase voltages')
  158.     ylim([-400 400])
  159.     ylabel('VLAn')
  160.  
  161. subplot(3,1,2)
  162.     t=.9:.001:1;
  163.     f=400;
  164.     V=300*sin(f*t+120)*2/3
  165.     plot(t,V)
  166.     grid on 
  167.     ylim([-400 400])
  168.     ylabel('VLBn')
  169.  
  170. subplot(3,1,3)
  171.     t=.9:.001:1;
  172.     f=400;
  173.     V=300*sin(f*t+240)*2/3
  174.     plot(t,V)
  175.     grid on 
  176.     ylim([-400 400])
  177.     ylabel('VLCn')