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    Lab Bode Plot - 2022

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    NURUL ANIS EMILLIA BINTI NAZRI STUDENT
    This document provides instructions for a laboratory experiment on analyzing frequency response and stability using Bode plots in MATLAB. Students will generate Bode plots for various transfer functions to determine bandwidth, resonant frequency, and gain margin. They will also analyze step responses to determine rise time, peak time, and overshoot. Relationships between frequency and time response will be discussed. Additionally, students will use Bode plots to evaluate stability margins and determine stability for different feedback systems, and methods for improving stability. Relevant plots should be attached to the report.

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    Download as PDF, TXT or read online from Scribd

    Lab Bode Plot - 2022

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    NURUL ANIS EMILLIA BINTI NAZRI STUDENT
    4 views3 pages
    This document provides instructions for a laboratory experiment on analyzing frequency response and stability using Bode plots in MATLAB. Students will generate Bode plots for various transfer functions to determine bandwidth, resonant frequency, and gain margin. They will also analyze step responses to determine rise time, peak time, and overshoot. Relationships between frequency and time response will be discussed. Additionally, students will use Bode plots to evaluate stability margins and determine stability for different feedback systems, and methods for improving stability. Relevant plots should be attached to the report.

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    This document provides instructions for a laboratory experiment on analyzing frequency response and stability using Bode plots in MATLAB. Students will generate Bode plots for various transfer functions to determine bandwidth, resonant frequency, and gain margin. They will also analyze step responses to determine rise time, peak time, and overshoot. Relationships between frequency and time response will be discussed. Additionally, students will use Bode plots to evaluate stability margins and determine stability for different feedback systems, and methods for improving stability. Relevant plots should be attached to the report.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    4 views3 pages

    Lab Bode Plot - 2022

    Uploaded by

    NURUL ANIS EMILLIA BINTI NAZRI STUDENT
    This document provides instructions for a laboratory experiment on analyzing frequency response and stability using Bode plots in MATLAB. Students will generate Bode plots for various transfer functions to determine bandwidth, resonant frequency, and gain margin. They will also analyze step responses to determine rise time, peak time, and overshoot. Relationships between frequency and time response will be discussed. Additionally, students will use Bode plots to evaluate stability margins and determine stability for different feedback systems, and methods for improving stability. Relevant plots should be attached to the report.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 3

    BIOMEDICAL ELECTRONIC ENGINEERING

    FACULTY OF ELECTRONIC ENGINEERING & TECHNOLOGY


    UNIVERSITY MALAYSIA PERLIS (UNIMAP)

    Name : _________________________________ Matrix No: ________________

    Date : _________________

    Title : Frequency Response Using Bode Plot

    Learning Outcomes
    At the end of this laboratory, students should be able to:
    ✓ Generate the Bode Plot of a given transfer function using MATLAB
    ✓ Analyze the frequency response of a given system based on Bode Plot of the system

    Instructions
    PART A: Relationship between Frequency Response and Time Response
    1. Consider the following systems,
    5 500
    G1 ( s ) = ; G4 ( s ) =
    ( s + 1 + 2i )(s + 1 − 2i ) ( s + 10 + 20i )(s + 10 − 20i )
    20 413.1
    G2 ( s ) = ; G5 ( s ) =
    ( s + 2 + 4i )(s + 2 − 4i ) ( s + 5 + 19.7i )(s + 5 − 19.7i )
    101
    G3 ( s ) = ;
    ( s + 1 + 10i )(s + 1 − 10i )
    2. Generate the Bode Plots for the above systems on the same graph, using the MATLAB function
    ‘bode’ and identify the following parameters.
    G1: BW = ________;  r = _________; Mr = _________;
    G2: BW = ________;  r = _________; Mr = _________;
    G3: BW = ________;  r = _________; Mr = _________;
    G4: BW = ________;  r = _________; Mr = _________;
    G5: BW = ________;  r = _________; Mr = _________;

    2022/2023
    3. Generate the Step Response for the above systems on the same graph, using the MATLAB function
    ‘step’ and identify the following parameters.
    G1: Tr = ________; Tp = _________;OS = ________%;
    G2: Tr = ________; Tp = _________;OS = ________%;
    G3: Tr = ________; Tp = _________;OS = ________%;
    G4: Tr = ________; Tp = _________;OS = ________%;
    G5: Tr = ________; Tp = _________;OS = ________%;

    4. Based on the parameters in (2) and (3), discuss the relation between the frequency and time
    response.
    __________________________________________________________________________________
    __________________________________________________________________________________
    __________________________________________________________________________________
    __________________________________________________________________________________
    _____________________________________________________________________________

    PART B: Stability Analysis Using Bode Plot


    1. Generate the Bode Plot for the following feedback system, if

    5∗(𝑠+4)
    𝐺(𝑠) = and 𝐻(𝑠) = 2
    𝑠(𝑠+1)(𝑠+3)(𝑠+6)

    Plant
    R(s) Y(s)
     G(s)
    _

    H(s)

    Feedback

    2. From the plot determine Gain Margin and Phase Margin of the system.

    Gm = ______________; Pm = _________________;

    3. Base on the Bode plot determine the stability of the system, justify your answer.

    2022/2023
    4. Reduce the system gain by 30dB to improve the Gain Margin and Phase Margin for the system. Plot

    the Bode Plots of both systems on the same graph. What are the new margins?

    Gm = ______________; Pm = _________________;

    5. Generate the Bode Plot for the above feedback system, if

    20∗(𝑠+6)
    𝐺(𝑠) = 𝑠(𝑠+1)(𝑠+3)(𝑠+5) and 𝐻(𝑠) = 1

    6. From the plot determine Gain Margin and Phase Margin of the system.

    Gm = ______________; Pm = _________________;

    7. Base on the Bode plot determine the stability of the system, justify your answer.

    8. What is the value of gain need to be reduced/added to make the system marginally stable?

    _________

    Note: Attach all the relevant plots with your report.

    Conclusion
    _____________________________________________________________________________________
    _____________________________________________________________________________________
    _____________________________________________________________________________________
    _____________________________________________________________________________________
    _____________________________________________________________________________________
    _______________________________________________________________________________

    2022/2023

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