MATLAB: How to link a plot or continous data from M-file to Simulink Model

call continuous datas from m-file to simu link... or link between m-file and simulink model

I have done a wind turbine Model. In M-file ,I have written the code of the wind power characteristics for different wind speed with respect to rootr speed. Please, help me ..How can I link the wind speed (Wind~Time graph)from M-file to Simulink Model??

   When I used "Sim..." command only latest data came. Here, The wind Speed~Time is a continuous graph or data.So, How can I call the continuous datas or graph from the M-file to Simulink Model.

Best Answer

Have you tried with From workspace block?

To know more, refer this link: http://www.mathworks.com.au/help/simulink/slref/fromworkspace.html

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MATLAB: Simulinke with m-file

You can run Simulink from the matlab prompt or from within a script using the sim command, and pass the simulation output back to the workspace. For example,

simOut = sim('myModel') ;

See this tutorial and 'Communication between the Matlab’s Command window/workspace and Simulink’s Model window' in this tutorial. In Matlab, you can then calculate the frequency of the output signal.

MATLAB: M-file function

Your function is calling itself without approaching any convergance or something that will allow it to end. Therefore it will run forever and eventually out of memory (hence the error). Try splitting it up into a script and a function as so:

Script:

 %creating window of plot from -5 to 50 using stepsize 0.25 for t x-axis
 %t should be on the x axis, v should be on the y axis
 k=0; 
for i= -5:.25:50
    k = k+1;
    t(k)=i;
    v(k)=vPieceWise(t(k));
end 
plot(t,v);
 
figure
plot(t,v);
hold on

Function:

%Part A: Mfile function to compute v as a function of t
function v = vPieceWise(t)
 if (t < 0)
        v = 0;
    elseif (0 <= t)&&(8<=16)
        v = -5*t+10*t.^2;
    elseif (8<=16)&&(t<=16)
        v = 624 - 3*t;
    elseif (t<=16)&&(t<=26)
        v = 12*(t-16).^2+36*t;
    elseif (26<t)
        v = 2136*exp(-0.1*(t-26));
 end

Best Answer

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MATLAB: Simulinke with m-file

MATLAB: M-file function

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