Programs On Bode Plot - Control Systems Lab - System Analysis - MSRIT - RIT

Hi!

Programs On Bode Plot :

1 -

1)      

GH=  5

  ---------------------------

  s^4 + 4 s^3 + 14 s^2 + 20 s

Editor -

 clc

clear all

close all

n=5;

d=conv([1 2 0],[1 2 10]);

sys=tf(n,d)

bode(sys);

grid;

figure;

margin(sys)

[Gm,Pm,wcg,wcp]=margin(sys);

GM_dB=20*log10(Gm)

display(Pm);

display(wcg);

display(wcp);

(run)

Command Window -

sys =

               5

  ---------------------------

  s^4 + 4 s^3 + 14 s^2 + 20 s

Continuous-time transfer function.

GM_dB =

   19.0848

Pm =

   80.0220

wcg =

    2.2361

wcp =

    0.2493

2 -

Editor - 

clc;

clear all;

close all;

n1=[200 600];

d1=conv([1 2 0],[1 4 60])

OLSYS=tf(n1,d1)

[n2,d2]=feedback(n1,d1,1,1);

CLSYS=tf(n2,d2)

p=roots(d2)

pzmap(CLSYS);

figure;

bode(OLSYS,[0.1,100]);

grid;

[GM,PM,wcg,wcp]=margin(OLSYS)

GM_dB=20*log10(GM)

(run)

Command Window

d1 =

     1     6    68   120     0

OLSYS =

          200 s + 600

  ----------------------------

  s^4 + 6 s^3 + 68 s^2 + 120 s

Continuous-time transfer function.

CLSYS =

             200 s + 600

  ----------------------------------

  s^4 + 6 s^3 + 68 s^2 + 320 s + 600

Continuous-time transfer function.

p =

  -0.1467 + 7.4497i

  -0.1467 - 7.4497i

  -2.8533 + 1.6326i

  -2.8533 - 1.6326i

GM =

    1.0915

PM =

   16.0863

wcg =

    7.5089

wcp =

    6.9288

GM_dB =

    0.7606

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Rishabh Chatterjee

Hi. I’m Engineering Student. I’m YouTuber. I’m Trying to find my passion.Sharing my life experiences with the world.

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