Impedance graph of a transmission line powersystem in MATLAB/simulink

  • Thread starter minhduc515
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minhduc515
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Homework Statement:
impedance locus on R-X diagram in simuink
Relevant Equations:
simulink, distance relay
I'm trying to plot impedance locus of transmission line in Matlab/Simulink.
I have readed some document and thay have plot result like that :
241676

I'm trying to calculate impedance when system have short - circuit fault, and plot it on R-X diagram, but i can't get their *red - dot* result like those documents.
What i have missed in my simulation ?
This is my simulation file, which I choosed phase B and C are phase fault, so that Z = (Vb-Vc)/(Ib-Ic)
Link
This is documents i have and trying to simulate
Thanks for your help !
 
Last edited:

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