From 7bc77cb1ed33745c720952c92b3b2747c5cbf2df Mon Sep 17 00:00:00 2001 From: prashantsinalkar Date: Sat, 3 Feb 2018 11:01:52 +0530 Subject: Added new code --- 3885/CH5/EX5.16/Ex5_16.sci | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 3885/CH5/EX5.16/Ex5_16.sci (limited to '3885/CH5/EX5.16') diff --git a/3885/CH5/EX5.16/Ex5_16.sci b/3885/CH5/EX5.16/Ex5_16.sci new file mode 100644 index 000000000..25d98515e --- /dev/null +++ b/3885/CH5/EX5.16/Ex5_16.sci @@ -0,0 +1,21 @@ +//control systems by Nagoor Kani A +//Edition 3 +//Year of publication 2015 +//Scilab version 6.0.0 +//operating systems windows 10 +// Example 5.16 + +clc; +clear; +s=poly(0,'s')//defines s as poly nomial variable +h=syslin('c',(7*(1+0.5*s)*(1+s)/(1+10*s)*(s-1)))//system is stable for K>6.....the given transfer function assigned to variable h +scf() +nyquist(h) +show_margins(h,'nyquist') +//calculation of K +//when -0.01667K=-1the contur passes through -1=j0and the corrospong value of K is the limiting value of k for stabilty +K=1/0.1667 +disp(K,'the value of K is') +disp('the open loop system is unstable') +disp('for stability of closed loop system K>6') + -- cgit