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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 /1938/CH6/EX6.26/6_26.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 '1938/CH6/EX6.26/6_26.sce')
| -rwxr-xr-x | 1938/CH6/EX6.26/6_26.sce | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/1938/CH6/EX6.26/6_26.sce b/1938/CH6/EX6.26/6_26.sce new file mode 100755 index 000000000..622f3e19e --- /dev/null +++ b/1938/CH6/EX6.26/6_26.sce @@ -0,0 +1,30 @@ +clc,clear
+printf('Example 6.26\n\n')
+
+X_d=0.8,X_q=0.5,R_a=0.02 //armature resistance and synchronous reactance of direct,quadrature axis
+
+//case(i) lag
+phi=acos(0.8)
+V_t=1
+I_a=1//full-load
+psi=atan( (V_t*sin(phi)+I_a*X_q)/(V_t*cos(phi)+I_a*R_a) )
+delta=psi-phi
+
+I_d=I_a*sin(psi)
+I_q=I_a*cos(psi)
+
+E_f=V_t*cos(delta)+I_d*X_d+I_q*R_a
+regulation=100*(E_f-V_t)/V_t
+printf('percentage regulation at 0.8 pf lag is %.2f percent',regulation)
+
+//case(ii) lead
+phi2=-1*acos(0.8) //minus sign because of leading pf
+psi2=atan( (V_t*sin(phi2)+I_a*X_q)/(V_t*cos(phi2)+I_a*R_a) )
+delta2=psi2-phi2
+
+I_d2=I_a*sin(psi2)
+I_q2=I_a*cos(psi2)
+
+E_f2=V_t*cos(delta2)+I_d2*X_d+I_q2*R_a
+regulation2=100*(E_f2-V_t)/V_t
+printf('\npercentage regulation at 0.8 pf lead is %.2f percent',regulation2)
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