source: trunk/Block-Oriented EML/Control Systems/Lead_Lag.mso @ 968

Last change on this file since 968 was 944, checked in by Argimiro Resende Secchi, 9 years ago

Adding Block-Oriented library by Jonathan Ospino Pinedo

File size: 1.5 KB
Line 
1#*-------------------------------------------------------------------
2* EMSO Model Library (EML) Copyright (C) 2004 - 2007 ALSOC.
3*
4* This LIBRARY is free software; you can distribute it and/or modify
5* it under the therms of the ALSOC FREE LICENSE as available at
6* http://www.enq.ufrgs.br/alsoc.
7*
8* EMSO is distributed under the terms of the ALSOC LICENSE as
9* available at http://www.enq.ufrgs.br/alsoc.
10*-----------------------------------------------------------------------
11* Author: Jonathan Ospino P.
12* $Id: Lead_Lag.mso  2012$
13*---------------------------------------------------------------------*#
14
15using "types";
16 
17Model Lead_Lag
18       
19        ATTRIBUTES
20        Pallete=true;
21        Icon="icon/Lead-Lag";
22        Info="== Lead-Lag Unit ==
23             
24                  It takes an input variable and computes
25              the respective value of the output variable according
26              to a Lead-Lag Unit Dynamics.";
27       
28        PARAMETERS
29        TauLD as time_sec(Brief="Lead Time constant");
30        TauLG as time_sec(Brief="Lag Time constant");
31                       
32        VARIABLES
33        in In as Real(Brief="Input variable",Protected=true,PosX=0,PosY=0.5);
34        x as Real(Brief="Intermediate variable",Hidden=true);
35        out Out as Real(Brief="Output variable",Protected=true,PosX=1,PosY=0.5);
36       
37        EQUATIONS
38       
39        #* A lead-lag unit can be interpreted as a pure lag unit
40        followed by a pure lead unit
41        *#
42       
43        "Pure Lag Unit Dynamics (FOD)"
44        TauLG*diff(x)+x=In;
45
46        "Pure Lead Unit Dynamics (FOD)"
47        Out=TauLD*diff(x)+x;
48
49        INITIAL
50        x=0;
51end
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