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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3760/CH5/EX5.34 | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
| download | Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.gz Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.bz2 Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.zip | |
initial commit / add all books
Diffstat (limited to '3760/CH5/EX5.34')
| -rw-r--r-- | 3760/CH5/EX5.34/Ex5_34.sce | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/3760/CH5/EX5.34/Ex5_34.sce b/3760/CH5/EX5.34/Ex5_34.sce new file mode 100644 index 000000000..354bb19b3 --- /dev/null +++ b/3760/CH5/EX5.34/Ex5_34.sce @@ -0,0 +1,16 @@ +clc;
+vt=1; // pu rated voltage
+xd=1; // pu d-axis synchronous reactance
+xq=0.6; // pu q-axis synchronous reactance
+p=0.9; // pu power being delivered
+pf=0.8; // power factor
+ia=p/(vt*pf); // pu armature current
+de=atand((ia*xq+vt*sind(acosd(pf)))/(vt*pf))-acosd(pf);
+printf('Load angle is %f degrees\n',de);
+Ef=vt*cosd(de)+ia*sind(de+acosd(pf))*xd;
+printf('Excitation voltage is %f p.u.\n',Ef);
+// when loss of excitation takes place Ef=0, for maximum power load angle=45
+de=45; // load angle
+pmax=(vt^2*(xd-xq)*sind(2*de))/(2*xd*xq);
+printf('Maximum power is %f p.u.\n',pmax);
+disp('As maximum power is less than the power being delivered generator will lose synchronism');
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