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+//Book name: Fundamentals of electrical drives by Mohamad A. El- Sharkawi
+//chapter 6
+//example 6.4
+//edition 1
+//publisher and place:Nelson Engineering
+clc;
+clear;
+L=1;//load of shunt motor in hp
+T=10;//constant torque of motor in Nm
+Ra=5;//armature resistance of the motor in ohm
+KQ=2.5;//The field constant in V sec
+V=120;//source voltage in volt
+f=60;//supply frequency in Hertz
+a=60;//trigerring angle of the converter in degree
+b=150;//conduction period in degree
+Iave=T/KQ;//average current in ampere
+Vm=V*2^(1/2);
+W=((Vm/(2*%pi))*(cosd(a)-cosd(b+a))-(Iave*Ra))/((b/360)*KQ);//angular speed of the motor
+n=W*(f/(2*%pi));
+disp(n,'The speed of the motor in rpm is:')
+Pd=KQ*W*Iave;//power developed by the motor
+disp(Pd,'The power developed by the motor in terms of watt is:')