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Diffstat (limited to '371/CH8/EX8.7')
| -rwxr-xr-x | 371/CH8/EX8.7/8_7.sci | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/371/CH8/EX8.7/8_7.sci b/371/CH8/EX8.7/8_7.sci new file mode 100755 index 000000000..e81289dd0 --- /dev/null +++ b/371/CH8/EX8.7/8_7.sci @@ -0,0 +1,19 @@ +//Harmonic and Powerfactor with the Converter system//
+//Example 8.7//
+A=%pi/4;
+h=6;
+Wv=sqrt(2)*sqrt(h^2-cos(A)^2*(h^2-1))*100/(h^2-1);
+printf('voltage ripple of the 6th harmonic=Wv=%fpercent',Wv);
+printf('\nFor six pulse converter most effective harmonic is 6th and for worst case A=90degrees\n');
+A=%pi/2;
+Wv6=sqrt(2)*sqrt(h^2-cos(A)^2*(h^2-1))*100/(h^2-1);//maximum voltage ripple in percentage//
+printf('\nmaximum voltage ripple=Wv6=%fpercent',Wv6);
+A=%pi/4;
+h=12;
+Wv=sqrt(2)*sqrt(h^2-cos(A)^2*(h^2-1))*100/(h^2-1);
+printf('\nvoltage ripple of the 12th harmonic=Wv=%fpercent',Wv);
+A=%pi/2;
+Wv12=sqrt(2)*sqrt(h^2-cos(A)^2*(h^2-1))*100/(h^2-1);//maximum voltage ripple in percentage//
+printf('\nmaximum voltage ripple=Wv12=%fpercent',Wv12);
+PR=(Wv6-Wv12)*100/Wv6;//percentage reduction in max. voltage ripple//
+printf('\npercentage reduction in max. voltage ripple=PR=%fpercent',PR);
\ No newline at end of file |