Simulink
by
Dr. Amin Danial Asham
References
 MATLAB Help
 Telemark University College - Department of Electrical
Engineering, Information Technology and Cybernetics –
Tutorial
 Simulink - Getting Started Guide
 UNIVERSITY OF NEWCASTLE UPON TYNE - School of
Electrical, Electronic and Computer Engineering Matlab/Simulink Tutorial
What is Simulink?
It is a simulation tools developed by
MathWorks.
This tool is used for modeling, simulating
and analyzing dynamic systems.
Its primary interface is a graphical block
diagramming tool.
This tool is tightly integrated with rest of
the Matlab environment.
Key Features
 Graphical editor for building and managing hierarchical block
diagrams
 Libraries of predefined blocks for modeling continuous-time and
discrete-time systems
 Simulation engine with fixed-step and variable-step ODE
solvers
 Scopes and data displays for viewing simulation results
 Project and data management tools for managing model files
and data
 Model analysis tools for refining model architecture and
increasing simulation speed
 MATLAB Function block for importing MATLAB algorithms into
models
 Legacy Code Tool for importing C and C++ code into models.
System Modeling
 Continuous Dynamic systems are described by
differential equations.
 Discrete Dynamic systems are described by
difference equations.
 Solving differential equations or difference
equations gives the behavior of the
corresponding dynamic systems.
 Differential equations and difference equations
describe the rate of change and difference for
variables, respectively.
 Equations without rates or differences are
algebraic equations. Ex. 𝐼𝑡𝑜𝑡𝑎𝑙 = 𝐼1 + 𝐼2
What is Purpose?
To give the basics for simulating
different models using Simulink.
Consequently, common and many
default settings for blocks will be
used. For more detailed features
students must refer to Matlab for
the considered blocks.
Starting Simulink
Start here
Starting Simulink
Start here
Simulink Library Browser
Simulink Continous Blocks
Simulink Math Operations
Simulink Sinks
Simulink Sources
Scope window — If a Scope
window is closed at the start
of a simulation, scope data is
still written to the connected
Scope. As a result, if you
open a Scope after a
simulation, the Scope window
displays the input signal or
signals.
Examples
Source
Sink
Examples
Sine
Vector that defines two
sine signals
Cosine
Examples
 On the Scope window toolbar, click the
Parameters button
 The values you entered or selected apply to
the next simulation.
Examples
To add signals to a Floating Scope, click the Signal
Selector button , and then select signals from your
model. For more information, see Signal Selector.
Examples
Displaying X-Y plot of signals using MATLAB
figure window
Thanks