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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/EX5.31/Ex5_31.sce | |
| 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/EX5.31/Ex5_31.sce')
| -rw-r--r-- | 3760/CH5/EX5.31/Ex5_31.sce | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/3760/CH5/EX5.31/Ex5_31.sce b/3760/CH5/EX5.31/Ex5_31.sce new file mode 100644 index 000000000..37330d877 --- /dev/null +++ b/3760/CH5/EX5.31/Ex5_31.sce @@ -0,0 +1,17 @@ +clc;
+v=400; // rated voltage of motor
+xd=6; // d-axis synchronous reactance
+xq=4; // q-axis synchronous reactance
+vt=400/sqrt(3); // rated per phase voltage
+// As per the theory given in question, phasor diagram is drawn and formula is derived
+// After the derived expression, for maximum power load angle=45
+de=45;
+P=(vt^2/2)*((1/xq)-(1/xd))*sind(2*de);
+printf('Maximum load that can be put on synchronous motor is %f W per phase\n',P);
+printf('Maximum load that can be put on synchronous motor is %f W for 3-phase\n',3*P);
+iq=(vt*sind(de))/xq; // q-axis component of armature current
+id=(vt*sind(de))/xd; // d-axis component of armature current
+ia=sqrt(iq^2+id^2);
+printf('Armature current is %f A\n',ia);
+pf=(3*P)/(sqrt(3)*v*ia);
+printf('Power factor at maximum power is %f lagging',pf);
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