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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /1733/CH7/EX7.9/7_9.sce | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '1733/CH7/EX7.9/7_9.sce')
| -rwxr-xr-x | 1733/CH7/EX7.9/7_9.sce | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/1733/CH7/EX7.9/7_9.sce b/1733/CH7/EX7.9/7_9.sce new file mode 100755 index 000000000..a00a6027d --- /dev/null +++ b/1733/CH7/EX7.9/7_9.sce @@ -0,0 +1,20 @@ +//7.9
+clc;
+Vm=230*2^0.5;
+Vf=2*Vm/%pi;
+Rf=200;
+If=Vf/Rf;
+T=50;
+Kt=0.8;
+Ia=T/(Kt*If);
+w=2*%pi*900/60;
+Vb=Kt*w*If;
+Ra=0.3;
+Va=Vb+Ia*Ra;
+alph_a=acosd(Va*%pi/Vm-1)
+printf("Firing angle of converter in the armature circuit=%.3f degree",alph_a)
+Po_a=Va*Ia;
+Iin=Ia*((%pi-alph_a*%pi/180)/%pi)^0.5;
+VA_input=Iin*230;
+pf=Po_a/VA_input;
+printf("\npower factor of converter in the armature circuit=%.3f lagging",pf)
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