1 files changed, 62 insertions, 0 deletions
diff --git a/3793/CH13/EX13.6/exp_13_6.sce b/3793/CH13/EX13.6/exp_13_6.sce
new file mode 100644
index 000000000..69407faaf
--- /dev/null
+++ b/3793/CH13/EX13.6/exp_13_6.sce
@@ -0,0 +1,62 @@
+clear;
+clc;
+Ybus=zeros(4,4);
+Za=%i*.1;
+Z12=%i*.25;
+Z14=%i*.4;
+Z43=%i*.1;
+Z42=%i*.2;
+Z32=%i*.1;
+Z13=%i*.5;
+Zg=%i*4;
+
+V1=1;
+V2=complex(.9787,-.0513);
+V3=complex(1.019,.0445);
+V4=complex(1.0098,-.0176);
+Ybus(1,1)=1/Zg+1/Z12+1/Z13+1/Z14;
+Ybus(1,2)=-1/Z12;
+Ybus(2,1)=Ybus(1,2);
+Ybus(1,3)=-1/Z13;
+Ybus(3,1)=Ybus(1,3);
+Ybus(1,4)=-1/Z14;
+Ybus(4,1)=Ybus(1,4);
+Ybus(2,2)=1/Z12+1/Z32+1/Z42;
+Ybus(2,3)=-1/Z32;
+Ybus(3,2)=Ybus(2,3);
+Ybus(2,4)=-1/Z42;
+Ybus(4,2)=Ybus(2,4);
+Ybus(3,3)=1/Z13+1/Z43+1/Z32;
+Ybus(3,4)=-1/Z43;
+Ybus(4,3)=Ybus(3,4);
+Ybus(4,4)=1/Z14+1/Z43+1/Z42;
+Z=inv(Ybus);
+Zt34=Z(3,3)+Z(4,4)-2*Z(3,4);
+V=[V1;V2;V3;V4];
+I12=(V1-V2)/Z12;
+I13=(V1-V3)/Z13;
+I14=(V1-V4)/Z14;
+I23=(V2-V3)/Z32;
+I24=(V2-V4)/Z42;
+I34=(V3-V4)/Z43;
+Zaa=-Za;
+Zden=Zt34-Zaa;
+L1234=Zaa/Z12*((Z(1,3)-Z(1,4))-(Z(2,3)-Z(2,4)))/Zden;
+L1334=Zaa/Z13*((Z(1,3)-Z(1,4))-(Z(3,3)-Z(3,4)))/Zden;
+L1434=Zaa/Z14*((Z(1,3)-Z(1,4))-(Z(4,3)-Z(4,4)))/Zden;
+L2334=Zaa/Z32*((Z(2,3)-Z(2,4))-(Z(3,3)-Z(3,4)))/Zden;
+L2434=Zaa/Z42*((Z(2,3)-Z(2,4))-(Z(4,3)-Z(4,4)))/Zden;
+I112=I12+L1234*I34;
+I113=I13+L1334*I34;
+I114=I14+L1434*I34;
+I223=I23+L2334*I34;
+I224=I24+L2434*I34;
+L12=abs(I112)/(4*abs(I12))*100;
+L13=abs(I113)/(4*abs(I13))*100;
+L14=abs(I114)/(4*abs(I14))*100;
+L23=abs(I223)/(1.3333*abs(I23))*100;
+L24=abs(I224)/(1.3333*abs(I24))*100;
+mprintf(" Line-outage distribution factors are L1234=%.3f, L1334=%.3f, L1434=%.3f, L2334=%.3f and L2434=%.3f\n",L1234,L1334,L1434,L2334,L2434);
+mprintf("New values of line current are I12=%.3f %.3f, I13=%.3f+%.3f, I14=%.3f+%.3f, I23=%.3f+%.3f and I24=%.3f+%.3f\n",real(I112),imag(I112),real(I113),imag(I113),real(I114),imag(I114),real(I223),imag(I223),real(I224),imag(I224));
+mprintf("Loading after tripping in percentage is L12=%.3f percent,L13=%.3f percent, L14=%.3f percent, L23=%.3f percent and L24=%.3f percent",L12,L13,L14,L23,L24);
+