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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 /3811/CH9/EX9.3/Ex9_3.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 '3811/CH9/EX9.3/Ex9_3.sce')
| -rw-r--r-- | 3811/CH9/EX9.3/Ex9_3.sce | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/3811/CH9/EX9.3/Ex9_3.sce b/3811/CH9/EX9.3/Ex9_3.sce new file mode 100644 index 000000000..df2e842da --- /dev/null +++ b/3811/CH9/EX9.3/Ex9_3.sce @@ -0,0 +1,20 @@ +//Book name: Fundamentals of electrical drives by Mohamad A. El- Sharkawi
+//chapter 9
+//example 9.3
+//edition 1
+//publisher and place:Nelson Engineering
+clc;
+clear;
+Ra=.5;//armature resistance in ohm
+KQ=3;//field constant
+V=277;//source voltage in volt
+Tup=100;//upward directional load torque in Nm
+a=20;//triggering angle in degree
+Tdw=200;//downward directional load torque in Nm
+Vm=V*sqrt(2);
+Veq=((2*Vm)/%pi)*cosd(a);
+omega1=((Veq/KQ))-((Ra*Tup)/KQ^(2));
+n1=omega1*(60/(2*%pi));//downward speed in rpm
+b1=((-KQ*omega1)+((Ra*Tdw)/KQ))/((2*Vm)/%pi);
+alpha2=acosd(b1);
+mprintf("The triggering angle required to keep the downward speed equal in magnitude to the upward speed in degree is %f",alpha2)
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