matlab - using simulink.pdf - zachomikowane - akunseth

S IMULINK

Dynamic System Simulation for M ATLAB

Mo deling

Simu lation

Implemen tation

Using Simulink

Version 3

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The software described in this document is furnished under a license agreement. The software may be used

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duced in any form without prior written consent from The MathWorks, Inc .

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Other product or brand names are trademarks or registered trademarks of their respective holders.

Printing History: 1990 First printing

December 1996 Revised for Simulink 2

May 1997 Revised for Simulink 2.1 (online version)

January 1998 Revised for Simulink 2.2 (online version)

January 1999 Revised for Simulink 3 (Release 11)

Using Simulink

Contents

Getting Started

To the Reader ........................................ 1-2

WhatIsSimulink?.................................... 1 -2

HowtoUseThisManual............................... 1 -3

Application Toolboxes ................................. 1-5

The Simulink Real-Time Workshop .................... 1-10

KeyFeatures ....................................... 1-10

The Real-Time Workshop Ada Extension ............... 1-12

KeyFeatures ....................................... 1-12

Blocksets ........................................... 1-14

TheDSPBlockset ................................... 1-14

TheFixed-PointBlockset ............................. 1-14

TheNonlinearControlDesignBlockset.................. 1-16

ThePowerSystemBlockset ........................... 1-16

Quick Start

Running a Demo Model ................................ 2-2

DescriptionoftheDemo ............................... 2 -3

SomeThingstoTry ................................... 2 -4

WhatThisDemoIllustrates ............................ 2 -5

OtherUsefulDemos .................................. 2 -5

Building a Simple Model ............................... 2-6

Creating a Model

Starting Simulink ..................................... 3-2

CreatingaNewModel ................................. 3 -3

EditinganExistingModel.............................. 3 -3

EnteringSimulinkCommands .......................... 3 -3

SimulinkWindows .................................... 3 -5

ZoomingBlockDiagrams............................... 3 -6

Selecting Objects ...................................... 3-7

SelectingOneObject .................................. 3 -7

SelectingMorethanOneObject ......................... 3 -7

Blocks ............................................... 3-9

BlockDataTips ...................................... 3 -9

VirtualBlocks........................................ 3 -9

Copying and Moving Blocks from One Window to Another . . 3-10

MovingBlocksinaModel ............................. 3-12

DuplicatingBlocksinaModel.......................... 3-12

SpecifyingBlockParameters........................... 3-12

BlockPropertiesDialogBox ........................... 3-13

DeletingBlocks ..................................... 3-14

ChangingtheOrientationofBlocks ..................... 3-15

ResizingBlocks ..................................... 3-15

ManipulatingBlockNames ............................ 3-16

DisplayingParametersBeneathaBlock’sIcon ............ 3-17

DisconnectingBlocks ................................. 3-18

VectorInputandOutput .............................. 3-18

ScalarExpansionofInputsandParameters .............. 3-18

AssigningBlockPriorities ............................. 3-19

UsingDropShadows ................................. 3-20

Libraries ............................................ 3-21

Terminology ........................................ 3-21

CreatingaLibrary ................................... 3-21

ModifyingaLibrary .................................. 3-22

CopyingaLibraryBlockintoaModel ................... 3-22

UpdatingaLinkedBlock .............................. 3-23

BreakingaLinktoaLibraryBlock ..................... 3-23

FindingtheLibraryBlockforaReferenceBlock ........... 3-24

GettingInformationAboutLibraryBlocks ............... 3-24

BrowsingBlockLibraries ............................. 3-25

Lines ................................................ 3-27

DrawingaLineBetweenBlocks ........................ 3-27

DrawingaBranchLine ............................... 3-28

DrawingaLineSegment .............................. 3-28

DisplayingLineWidths ............................... 3-31

InsertingBlocksinaLine ............................. 3-31

SignalLabels ....................................... 3-32

SettingSignalProperties.............................. 3-34

SignalPropertiesDialogBox........................... 3-35

Annotations ......................................... 3-37

Working with Data Types ............................. 3-38

DataTypesSupportedbySimulink ..................... 3-38

BlockSupportforDataandNumericSignalTypes ......... 3-39

SpecifyingBlockParameterDataTypes ................. 3-43

CreatingSignalsofaSpecificDataType ................. 3-43

DisplayingPortDataTypes ........................... 3-43

DataTypePropagation ............................... 3-43

DataTypingRules ................................... 3-44

Enabling Strict Boolean Type Checking . ................. 3-45

TypecastingSignals .................................. 3-45

TypecastingParameters .............................. 3-45

Working with Complex Signals ........................ 3-47

Summary of Mouse and Keyboard Actions .............. 3-48

Creating Subsystems ................................. 3-51

Creating a Subsystem by Adding the Subsystem Block . . . . . 3-51

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