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Diffstat (limited to '3811/CH11/EX11.5/Ex11_5.sce')
-rw-r--r-- | 3811/CH11/EX11.5/Ex11_5.sce | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/3811/CH11/EX11.5/Ex11_5.sce b/3811/CH11/EX11.5/Ex11_5.sce new file mode 100644 index 000000000..661bbf416 --- /dev/null +++ b/3811/CH11/EX11.5/Ex11_5.sce @@ -0,0 +1,18 @@ +//Book Name: Fundamentals of electrical drives by Mohamad A. El- Sharkawi
+//chapter 11
+//example 11.5
+//edition 1
+//publishing place:Thomson Learning
+clc;
+clear;
+Ra=1;//armature resistance in ohm
+Kphi=3;//field constant in V sec
+Vt=500;//terminal voltage in volt
+Td=20;//constant torque of the motor in Nm
+J=6;//total moment of inertia of the drive in Nm
+omegaf=0;
+Vb=(omegaf+((Ra*Td)/Kphi^(2)))*Kphi;
+mprintf("\nThe terminal voltage that stop the motor and keep it at holding is %f V",Vb)
+tau=(J*Ra)/Kphi^(2);
+t=3*tau;//the motor reaches the holding state when speed is 5% of initial speed
+mprintf("\nThe traveling time during the braking is %d sec",t)
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