How to repeat the graph many times using FOR loop

Hello guys, i want to put a FOR loop in my code to plot my signal as much as i want but i still cant make it

my code below :

clc;
clear all;
close all;

%% Declaration of initial variables
fs = 5000;                      % Sampling Frequency in Hz
t1 = linspace(0,2000,fs) ;       % Period in ms
f = 50;                         % Frequency in Hz
U1=230;                         % Supply voltage

FontSize = 10;

%% For VOLTAGE
MyVoltage = U1*sin(2*pi*f*t1);         % Sine wave generation
subplot(5,1,1);
plot(t1,MyVoltage)
grid on;
xlabel('My Voltage', 'FontSize', FontSize)
ylabel('Tension (V)', 'FontSize', FontSize)

title ('Generation of voltage dips of 70%', 'FontSize', FontSize);

%% Declaration of initial variables

fs = 5000;                     % Sampling Frequency in Hz
t2 = linspace(2000,2500,fs) ;   % Period in ms
f = 50;                        % Frequency in Hz
P=0.7;                         % disturbance percentage 
U2=230*P;                      % Perturbation

%% For PERTURBATION
MyPerturbation = U2*sin(2*pi*f*t2);         % Sine wave generation
subplot(5,1,2);
plot(t2,MyPerturbation)
grid on;
xlabel('My Perturbation', 'FontSize', FontSize)
ylabel('Tension (V)', 'FontSize', FontSize)

%% For VOLTAGE DIPS
signal = MyVoltage+MyPerturbation;           % Voltage dips generation
subplot(5,1,3);
plot(t1,MyVoltage, 'r', t2, MyPerturbation, 'b')
hold on
grid on;
xlabel( 'My Voltage Dip', 'FontSize', FontSize)
ylabel('Voltage (V)', 'FontSize', FontSize)

%% Declaration of initial variables
fs = 5000;                      % Sampling Frequency in Hz
t3 = linspace(2500,3500,fs) ;   % Period in ms
f = 50;                         % Frequency in Hz
U1=230;                         % Supply voltage

FontSize = 10;

%% For VOLTAGE
MyVoltage = U1*sin(2*pi*f*t3);         % Sine wave generation
subplot(5,1,4);
plot(t3,MyVoltage)
grid on;
xlabel('My Voltage', 'FontSize', FontSize)
ylabel('Tension (V)', 'FontSize', FontSize)

%% For FINAL VOLTAGE DIPS
signal = MyVoltage+MyPerturbation;           % Voltage dips generation
subplot(5,1,5);
plot(t1,MyVoltage, 'r', t2, MyPerturbation, 'b', t3, MyVoltage, 'g')
hold on
grid on;
xlabel( 'My Voltage Dip', 'FontSize', FontSize)
ylabel('Voltage (V)', 'FontSize', FontSize)

In fact i want to plot the last signal many times using a FOR loop. I tried many times but i couldnt make ...

[dpb]

Way too little explanation of what this means, specifically -- what would be the point of plotting the same thing over and over, anyway?

Going to have to provide an actual explanation of just what you're trying to accomplish first...or show us what you did try to add and where it went wrong in terms of not producing expect result. Of course, we need to know what that expected result would be.

[azerty and qwerty]

Okay .. so if u plot my code u will get this signal at the end :

I can make another signal like this by re-writing the same code again and changing the time ... but if i had to make it 50 more times, i will not write 50 times the same code over and over .. so i tried to make a for loop so i can get this signal as much as i want .. but i get errors everytime

[azerty and qwerty]

i want to have something like this for example :

in this case i just repeated it 3 times so i just changed the time and rewrite it .. but if i had to repeat it infinit time here its a problem

Answer 1

[VINAYAK LUHA]

Hi ,

As per my understanding ,

"You wish to plot a periodic signal of time period (T=3500ms) with known amplitude variations within the first time period ."

SOLUTION

Plot the same amplitude variation in successive time periods using for loop.

 %% Declaration of initial variables
    fs = 5000;                      % Sampling Frequency in Hz
    t1 = linspace(0,2000,fs) ;       % Period in ms
    f = 50;                         % Frequency in Hz
    U1=230;                         % Supply voltage
    FontSize = 10;
    %% For VOLTAGE
    MyVoltage = U1*sin(2*pi*f*t1);         % Sine wave generation
    subplot(5,1,1);
    plot(t1,MyVoltage)
    grid on;
    xlabel('My Voltage', 'FontSize', FontSize)
    ylabel('Tension (V)', 'FontSize', FontSize)
    title ('Generation of voltage dips of 70%', 'FontSize', FontSize);
    %% Declaration of initial variables
    fs = 5000;                     % Sampling Frequency in Hz
    t2 = linspace(2000,2500,fs) ;   % Period in ms
    f = 50;                        % Frequency in Hz
    P=0.7;                         % disturbance percentage 
    U2=230*P;                      % Perturbation
    %% For PERTURBATION
    MyPerturbation = U2*sin(2*pi*f*t2);         % Sine wave generation
    subplot(5,1,2);
    plot(t2,MyPerturbation)
    grid on;
    xlabel('My Perturbation', 'FontSize', FontSize)
    ylabel('Tension (V)', 'FontSize', FontSize)
    %% For VOLTAGE DIPS
    signal = MyVoltage+MyPerturbation;           % Voltage dips generation
    subplot(5,1,3);
    plot(t1,MyVoltage, 'r', t2, MyPerturbation, 'b')
    hold on
    grid on;
    xlabel( 'My Voltage Dip', 'FontSize', FontSize)
    ylabel('Voltage (V)', 'FontSize', FontSize)
    %% Declaration of initial variables
    fs = 5000;                      % Sampling Frequency in Hz
    t3 = linspace(2500,3500,fs) ;   % Period in ms
    f = 50;                         % Frequency in Hz
    U1=230;                         % Supply voltage
    FontSize = 10;
    %% For VOLTAGE
    MyVoltage = U1*sin(2*pi*f*t3);         % Sine wave generation
    subplot(5,1,4);
    plot(t3,MyVoltage)
    grid on;
    xlabel('My Voltage', 'FontSize', FontSize)
    ylabel('Tension (V)', 'FontSize', FontSize)
    %% For FINAL VOLTAGE DIPS
    signal = MyVoltage+MyPerturbation;           % Voltage dips generation
    subplot(5,1,5);
    plot(t1,MyVoltage, 'r', t2, MyPerturbation, 'b', t3, MyVoltage, 'g')
    hold on
    grid on;
    xlabel( 'My Voltage Dip', 'FontSize', FontSize)
    ylabel('Voltage (V)', 'FontSize', FontSize)
    
   
        %------------------------------------------------------------------------------------------
        %figure
        %times is the number of Times you want to replicate the wave
        times=4;
        time_period=3500;
        for i=1:times
            hold on
            plot(t1,MyVoltage, 'r', t2, MyPerturbation, 'b', t3, MyVoltage, 'g');
            t1=t1+time_period;
            t2=t2+time_period;
            t3=t3+time_period;
        end
        
        xlabel( 'My Voltage Dip', 'FontSize', FontSize)
            ylabel('Voltage (V)', 'FontSize', FontSize)

Answer 2

[azerty and qwerty]

Thats exactly what i wanted !! thank you so much