experiment3_511.asv

student s experiment majored in automation

%experiment3
%-------------------(4)-----------------------
num=8*conv(conv([1 1],[1 2]),[1 3])
den=conv(conv(conv(conv([1 3.5],[1 4]),[1 5]),[1 1+j]),[1 1-j])
sys=tf(num,den,'iodelay',2)
step(sys,10)
%-------------------(5)-----------------------
clear;clc
%---xuedingyue_page124----------
s=tf('s');
G=24040*(s+25)/(s*(s^2+13.2*s+173.5)*(s^2+111.8*s+3450));%  * 乘号一定不能省略
figure(1)
rlocus(G)
figure(2)
step(feedback(G,1));grid;hold on;
Gc=tf([0.011 1],[0.07 1]);
rlocus(feedback(Gc*G,1))
step(feedback(Gc*G,1))