engjango / secondorder-octave

This GNU/Octave sscript randomly chooses two Script_2Ord * .m files and calculates, for each one, the parameters of second order systems.

Second Order System Parameters

This script randomly chooses two Script_2Ord * .m files present in the same directory and calculates, for each one, the following second order system parameters:

• Natural frequency (wn);
• Damping factor (zeta);
• Transfer Function [G (s)];
• Peak instant (Tp);
• Percentage surpassing (UP);
• Accommodation time (Ts);
• Rising time (Tr);

---

Parâmetros de Sistemas de Segunda Ordem (Sistemas de Controle)

Este script escolhe aleatoriamente dois arquivos Script_2Ord*.m presentes no mesmo diretório e realiza o cálculo, para cada um, dos seguintes parâmetros dos sistemas de segunda ordem, respectivamente:

• Frequência natural (wn);
• Fator de amortecimento (zeta);
• Função de Transferência [G(s)];
• Instante de pico (Tp);
• Ultrapassagem de percentual (UP);
• Tempo de Acomodação (Ts);
• Tempo de subida (Tr);

---

Output

Some results obtained for files "Sist_2Ord3.mat" and "Sist_2Ord5.mat".

>> script_sun
-----------------------------------------------------------
Arquivo 1: Sist_2Ord3.mat

Função de Transferência:
G(s)_1 = 0.53/(s^2 + 0.84s + 1.00).

Parâmetros:
Tp = 3.46 s
Ts = 8.38 s
Tr = 1.98s - 0.48s = 1.50 s
Wn =  1.00 rad/s
Zeta =  0.42
UP% = 23.38%

Parâmetros Re-Calculados:
Tp = 3.46 s
Ts = 9.52 s
Tr = 1.46 s
Wn =  1.00 rad/s
Zeta =  0.42
UP% = 23.38%
-----------------------------------------------------------

-----------------------------------------------------------
Arquivo 2: Sist_2Ord5.mat

Função de Transferência:
G(s)_2 = 1.31/(s^2 + 0.97s + 1.21).

Parâmetros:
Tp = 3.18 s
Ts = 7.59 s
Tr = 1.83s - 0.44s = 1.39 s
Wn =  1.10 rad/s
Zeta =  0.44
UP% = 21.46%

Parâmetros Re-Calculados:
Tp = 3.18 s
Ts = 8.27 s
Tr = 1.33 s
Wn =  1.10 rad/s
Zeta =  0.44
UP% = 21.46%
-----------------------------------------------------------

Install Dependencies

control package

If you haven't yet installed the control package, then type the following command in the GNU/Octave terminal window and press Enter.

>> pkg install -forge control

Compile and Run

Once you have the dependencie (see above), open the file script_sun.m on GNU/Octave and go to Execute > Save and Execute (or just press F5).

Dependencies

• control package.