initial commit / add all books

1 files changed, 25 insertions, 0 deletions

diff --git a/503/CH8/EX8.37/ch8_37.sci b/503/CH8/EX8.37/ch8_37.sci
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+//to find initial current,current at the end of 2 cycles and at the end of 10s

+

+clc;

+Ef=1;

+Xd2=.2;

+I2=Ef/Xd2;

+r=100*10^6;

+V=22000;

+I_b=r/(sqrt(3)*V);

+I2=I2*I_b;disp(I2,'initial current(A)');

+

+Xd1=.3;

+I1=Ef/Xd1;

+Xd=1;

+I=Ef/Xd;

+

+tau_dw=0.03;

+tau_f=1;

+

+function[a]=I_sc(t)

+    a=(I2-I1)*exp(-t/tau_dw)+(I1-I)*exp(-t/tau_f)+1;

+endfunction

+//2 cycles=0.04s

+disp(I_sc(.2867)*I_b,'current at the end of 2 cycles(A)');

+disp(I_sc(10)*I_b,'current at the end of 10s(A)');