Analysis of the system (kelompok 2).docx

Analysis of the system's dynamic response In the following experiments we shall be examining the dynamic response of the light controlled system in the time domain (by recording the step response) and in the frequency domain (by recording the Bode plot and Nyquist plot) .

Experiment: Determining the step response of the controlled system Set up the experiment circuit shown below.

Activate the step-response plotter and configure it in accordance with the settings in the Table below. Input settings Channel A

Meas. range: 10 V

Coupling: DC

Channel B

Meas. range: 10 V

Coupling: DC

Range: 100

Offset: 0

Other

Output settings Step from ... to ...

0

80%

Delay time/ms

0

Measurements

300 Diagram settings

Display

Channel A

x-axis from ... to ...

0

0.1 s

y-axis from ... to ...

0

100

Now determine the step response of the controlled system and copy the plot obtained into the space below.

%

100

x1: 0.095 y 1:

90

5 x2: 0.095

80

y 2: 95 dx:

70

0 dy : 90

60

dy /dx: 50

40

30

20

10

0 0

%

t/s

100

90

80

70

60

50

40

30

20

10

0 0 t/s

%

100

90

80

70

60

50

40

30

20

10

0 0 t/s

Step response of the light controlled system

What kind of controlled system are we dealing with in the case of the light controlled system? What are the corresponding system parameters? What controller types would be suitable for the particular type of controlled system? Enter your explanations in the text box below.

Experiment: determination of the Bode plot and Nyquist plot Set up the experiment circuit shown below.

Activate the Bode plotter and configure it as specified in the following Table Settings for input channel A Meas. range: 10 V

Coupling: DC

Automatic adjustment: yes

Output settings Start value: 0.5 Hz

Final value: 100 Hz

100 values

Logarithmic: yes

Delay time: 0 ms

Amplitude: 3 V (Offset 6 V)

Diagram scale settings Angular frequency from ... to ...

0.1

1000 (logarithmic)

Transfer function (dB) from ... to ...

-10

20 (Scale div. 5)

Phase response from ... to ...

-90

90 (Scale div. 30)

Diagram display settings Angular frequency (Omega)

Amplitude response (dB)

Phase response

Use the settings above to determine the Bode plot of the controlled system and copy it into the space below.

|F| [dB]

phi [Deg]

90

20

60

15

30

10

0

5

-30

0

-60

-5

-90

-10 1E-1

1E0

1E1

1E2

1E3 Omega [1/s]

Bode plot of the light controlled system

Now switch to the locus curve plotter to depict the frequency response in the form of the Nyquist plot. Copy the plot into the space below.

IM

1.75 1.50 1.25 1.00 0.75 0.50 0.25 0.00 -0.25 -0.50 -0.75 -1.00 -1.25

IM

-1.50 -1.50 -1.25 -1.00 -0.75

-0.50 -0.25

0.00

0.25

0.50

0.75

-1.50 -1.50 -1.25 -1.00 -0.75 -0.50 -0.25

0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75 RE

1.75 1.50 1.25 1.00 0.75 0.50 0.25 0.00 -0.25 -0.50 -0.75 -1.00 -1.25

1.00

1.25

1.50

1.75 RE

IM

1.75 1.50 1.25 1.00 0.75 0.50 0.25 0.00 -0.25 -0.50 -0.75 -1.00 -1.25 -1.50 -1.50 -1.25 -1.00 -0.75 -0.50 -0.25

0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75 RE

Nyquist plot of the light controlled system

What are the characteristics of the Bode and Nyquist plots in qualitative terms? How can these characteristics be explained? Enter your explanations into the answer box below.

Analisis sistem dinamis respon Dalam percobaan berikut kita akan memeriksa respon dinamis sistem dikendalikan cahaya di waktu domain (dengan merekam respon langkah) dan dalam frekuensi domain (dengan merekam Bode plot dan Nyquist plot). Percobaan: Menentukan langkah respon sistem dikendalikan Mengatur sirkuit percobaan yang ditunjukkan di bawah ini.

Aktifkan plotter langkah-respon dan mengkonfigurasi sesuai dengan pengaturan dalam tabel berikut.

Sekarang menentukan langkah respon sistem dikendalikan dan menyalin plot memperoleh ke dalam ruang di bawah ini.

Langkah respon dikontrol sistem cahaya Apa jenis dikontrol sistem kami berurusan dengan dalam hal sistem kontrol cahaya? Apa yang sesuai sistem parameter? Controller apa jenis akan cocok untuk jenis tertentu dikontrol sistem? Masukkan penjelasan Anda dalam kotak teks di bawah ini.

Percobaan: penentuan Bode plot dan Nyquist plot Mengatur sirkuit percobaan yang ditunjukkan di bawah ini.

Mengaktifkan Bode plotter dan mengkonfigurasinya sebagaimana ditentukan dalam tabel berikut Gunakan pengaturan di atas untuk menentukan plot Bode sistem dikendalikan dan menyalinnya ke dalam ruang di bawah ini. Pertanda plot dikontrol sistem cahaya Sekarang beralih ke lokus kurva plotter untuk menggambarkan respon frekuensi dalam bentuk dari Nyquist plot. Copy plot ke ruang di bawah ini.

Plot Nyquist cahaya dikontrol sistem Apakah Karakteristik dari Bode dan Nyquist plot kualitatif? Bagaimana ciri-ciri ini dapat dijelaskan? Memasuki penjelasan Anda jawaban kotak di bawah ini.