source: trunk/eml/controllers/lead_lag.mso @ 982

Last change on this file since 982 was 683, checked in by gerson bicca, 14 years ago

updated PID controller

  • 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 683 2008-11-19 21:21:38Z bicca $
17*---------------------------------------------------------------------*#
18
19using "types";
20 
21 
22Model Lead_lag
23
24ATTRIBUTES
25        Pallete         = false;
26        Icon            = "icon/Lead_Lag";
27        Brief           = "Model Lead lag.";
28        Info            =
29"== Inputs ==
30* One input signal.
31       
32== Outputs ==
33* One output signal.
34";
35       
36        PARAMETERS
37    gain  as positive (Brief="model gain");
38        beta  as positive (Brief="lead time constant", Unit='s');
39        alpha as positive (Brief="lag time constant", Unit='s');
40       
41        VARIABLES
42        input  as Real (Brief="input signal");
43        output as Real (Brief="output signal");
44        aux    as Real (Brief="internal variable");
45       
46        EQUATIONS
47       
48        "Calculate variable aux"
49        alpha*diff(aux)=gain*input-aux;
50       
51        "Calculate output"
52        output=beta*diff(aux) + aux;
53
54        INITIAL
55        diff(aux)= 0/'s';
56       
57end
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