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+clc
+// Variable Initialization 
+Vm=230 //Supply Voltage in Volts
+R=0.25//Combined Field and Armature circuit resistance in Ohm
+N=1000 //Motor speed in Rpm
+Kaf=0.03 //Constant in N-m/A^2
+Krcs=0.075 //Constant in V-S/Rad
+a=30 //firing angle in Degree
+
+//Solution
+//For a full converter controlled dc motor drive
+W=(2*%pi*N)/60 //Angular speed in Rad/sec
+Ia=((((2*Vm*1.414)/%pi)*cosd(a))-(Krcs*W))/(R+(Kaf*W)) //Armature current in Amp
+T=Kaf*(Ia^2) //Torque in N-m
+Va=(2*Vm*1.414)*cosd(a)*(1/%pi)//Average voltage in volts
+Po=Va*Ia //Output power in Watt
+Irms=Ia*sqrt((180-a)/180) //Rms Current in Amp
+Pi=Vm*Irms
+pf=Po/Pi //Power factor
+
+//Results
+printf('\n\n The motor Current =%0.1f Amp \n\n',Ia)
+printf('\n\n The motor Torque=%0.1f N-m \n\n',T)
+printf('\n\n The Supply Power Factor=%0.1f Lag\n\n',pf)
+//The answers vary due to round off error
+