source: trunk/eml/controllers/lead_lag.mso @ 291

Last change on this file since 291 was 291, checked in by gerson bicca, 15 years ago

added documentation in controllers models

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
File size: 1.4 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 Copyright (C) 2004 - 2007 ALSOC, original code
9* from http://www.rps.eng.br Copyright (C) 2002-2004.
10* All rights reserved.
11*
12* EMSO is distributed under the therms of the ALSOC LICENSE as
13* available at http://www.enq.ufrgs.br/alsoc.
14*-----------------------------------------------------------------------
15* Author: Tiago Osório
16* $Id: lead_lag.mso 291 2007-06-21 17:34:12Z bicca $
17*---------------------------------------------------------------------*#
18
19using "types";
20 
21 
22Model Lead_lag
23
24ATTRIBUTES
25        Pallete         = true;
26        Icon            = "Lead_lag";
27        Brief           = "Model Lead lag.";
28        Info            =
29        "
30        - Inputs:
31        * One input signal.
32       
33        - Outputs:
34        * One output signal.
35        ";
36       
37        PARAMETERS
38    gain  as positive (Brief="model gain");
39        beta  as positive (Brief="lead time constant", Unit='s');
40        alpha as positive (Brief="lag time constant", Unit='s');
41       
42        VARIABLES
43        input  as Real (Brief="input signal");
44        output as Real (Brief="output signal");
45        aux    as Real (Brief="internal variable");
46       
47        EQUATIONS
48       
49        "Calculate variable aux"
50        alpha*diff(aux)=gain*input-aux;
51       
52        "Calculate output"
53        output=beta*diff(aux) + aux;
54
55        INITIAL
56        diff(aux)= 0/'s';
57       
58end
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