Lab_3_f07 - EE 428 LINEAR CONTROL SYSTEMS ANALYSIS FALL...

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EE 428 LINEAR CONTROL SYSTEMS ANALYSIS FALL 2007 EE 428 Laboratory #3: Computer-Aided Control System Analysis and Design 1 Objectives The objectives of the third laboratory session is to show how to use the SIMULINK block diagram environment for simulation. 2 SIMULINK SIMULINK is a graphical user interface to MATLAB and provides a convenient means for representing and analyzing signals and systems using block diagrams. For example, Figure 1 shows a SIMULINK representation of a system represented by the transfer function Y ( s ) F ( s ) = P ( s ) Q ( s ) In order to compute the zero-state unit-step response of the system in Figure 1 using the SIMULINK environment, follow the steps below. P(s) Q(s) Transfer Fcn t To Workspace2 f To Workspace1 y To Workspace Step Clock Figure 1: SIMULINK model of a system represented by the transfer function H ( s )= P ( s ) /Q ( s ). 1. To start SIMULINK, type simulink at the MATLAB command prompt. After the Library Browser window opens, select new model from the fle menu and a new window will appear. Within this window, you can construct a block diagram representation of a system by clicking on the desired block in the Library Browser Window and dragging it into your model. The SIMULINK model in Figure 1 contains six blocks. 2. Add a Transfer Fcn block by ±rst opening the Continuous block in the Library Browser window, then click on and drag the Transfer Fcn block into your model window. The Transfer Fcn block represents the system using the polynomials P ( s ) and Q ( s ) from the ODE description. 3. Specify the polynomials
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This note was uploaded on 07/23/2008 for the course EE 428 taught by Professor Schiano during the Fall '07 term at Pennsylvania State University, University Park.

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Lab_3_f07 - EE 428 LINEAR CONTROL SYSTEMS ANALYSIS FALL...

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