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+//Caption:overall_transfer_function_of_given_system
+//example 5.9.8
+//page 105
+syms Rf Ra Kb Jm Lf La Kg Kt Jl s
+Rf=1000;//field_resistance
+Lf=100;//field_inductanc
+Kg=1000;//generator_field_constant
+Ra=20;//armature_resistance
+La=0.1;//armature_inductance
+Kt=1.2;//motor_torque_const
+Kb=1.2;//motor_back_emf_const
+Jl=0.00003;//moment_of_inertia
+Jm=0.00002;//coeff_of_viscous_friction
+a=Kt/(Ra+s*La);
+b=1/((Jm+Jl)*s);
+c=(a*b);
+d=c/(1+c*Kb);
+e=Kg/(Rf+s*Lf);
+f=(d*e);
+f=simple(f)
+disp(f,"wss(s)/Vf(s)=");
+
+//steady state value
+disp("under steady state condition, on putting s=0 in expression f,we get:")
+disp("Vf=1.2*wss")
+\ No newline at end of file