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The University of New BrunswickDepartment of Electrical and Computer Engineering

Fredericton, NB, E3B 5A3 Canada

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Using Matlab/Simulink Using Matlab/Simulink

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Matlab Main Window

Command window

Directory listing

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Matlab Main Window

Type simulink on command window andhit <enter>

Or double click the file to open

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Simulink Library Browser

Select NEW to start a new

project

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Starting a new project

Drag and drop

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Connecting Blocks

Select the firstblock, hold <Ctrl> key down andclick the targetblock. This goeswith single inputblocks. Or thefirst input of theblocks withmultiple inputs.

Hold left mouse button on the connection point of one of the blocks anddrag it to the connection point of the other block then relase the mouse

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Changing Block Parameters

Double click the blocks to edit their parameters.

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Changing Block Parameters

Move mouse over a block and hold theright button down to get more featuresfor the block.

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Displaying and Printing Graphs

You can display the responses using scope window. However, scopewindow is not good to be used in reports. However, you cannot edit the axis labels. Besides, the dark background is not good for printing.

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Exporting Data to .MAT file

From the Simulink Library Sinks, select theblock To File

Drag the block To Fileon to your work project

You can export your data toMatlab workspace or to an .m file and then plot it for thereports.

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Exporting Data to .MAT file

Double click each To File block andchange file name and variable name tosuit your model system.

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Exporting Data to .MAT file

This is the file (p1.mat), which contains theexported data.

The first row of the exporteddata is the simulation time in seconds and the second rowis the variable.

The variable stored here is PP1.

The file p1.mat is saved into your working directory. This file is then called from either Matlab Command Window or from an .m file.

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Using .MAT files in MATLAB

Load .mat file content to workspace

Shows the variables currently in memory

The variable in memory is PP1

Get transpose of PP1 as D so that you willhave 2 columns data file instead of 2 rows

Get time t and variable y1 as 2 separatesingle column vectors for plotting.

Plot y vs. t.

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Using .MAT files in MATLAB

Copy figure to clipboard. Then fromclipboard to your document as on the left..

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Using .MAT files in MATLAB

This is a sample for a good grapgh in a document file.

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Using .MAT files in .m files

You can download this.m file from thecourse site.

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