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Vt=1;Ia=1;Xd=0.8;Xq=0.4;Loss=0.15;Angle=36.9;
a=cos(%pi*Angle/180)
b=sin(%pi*Angle/180)
TanDeg=(Vt*Xq*a)/(Vt+(Ia*Xq*b))
z=atan(TanDeg)
Deg=(z*%pi/180)
Deg=(z*180/%pi)
Angl=Angle-Deg
Id=Ia*sin(%pi*Angl/180)
Iq=Ia*cos(%pi*Angl/180)
Ef=(Vt*cos(%pi*Deg/180))-(Id*Xq)
Pf=((Vt*Ef)/Xd)*sin(%pi*Deg/180)
Pr=(Vt^2*(Xd-Xq)/(2*Xd*Xq))*sin(%pi*45.6/180)
Pout=Vt*Ia*a
Prmax=(Vt^2*(Xd-Xq))/(2*Xd*Xq)
v=asin(Loss/Prmax)/2
Deg1=(v*180/%pi)
Id=Vt*cos(%pi*Deg1/180)/Xd
Iq=Vt*sin(%pi*Deg1/180)/Xq
Ia=(Id^2+Iq^2)^(1/2)
Ang=atan(Id/Iq)
Ang=(Ang*180/%pi)
Phi=Ang+Deg1
Pf=cos(%pi*Phi/180)
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