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Last change
on this file since 8 was
1,
checked in by Rafael de Pelegrini Soares, 17 years ago
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Initial import of the library
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-
Property svn:eol-style set to
native
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Property svn:keywords set to
Id
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File size:
930 bytes
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| 1 | #*---------------------------------------------------------------------- |
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| 2 | * Model Lead Lag |
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| 3 | *----------------------------------------------------------------------- |
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| 4 | * - Inputs |
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| 5 | * - a input signal |
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| 6 | * |
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| 7 | * - Outputs |
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| 8 | * - a output signal |
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| 9 | * |
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| 10 | * - Assumptions |
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| 11 | * |
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| 12 | *----------------------------------------------------------------------- |
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| 13 | * Author: Tiago Osório |
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| 14 | * $Id: lead_lag.mso 1 2006-06-20 17:33:53Z rafael $ |
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| 15 | *---------------------------------------------------------------------*# |
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| 16 | |
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| 17 | using "types"; |
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| 18 | |
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| 19 | |
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| 20 | Model Lead_lag |
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| 21 | |
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| 22 | PARAMETERS |
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| 23 | gain as positive (Brief="model gain"); |
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| 24 | beta as positive (Brief="lead time constant", Unit="s"); |
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| 25 | alpha as positive (Brief="lag time constant", Unit="s"); |
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| 26 | |
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| 27 | VARIABLES |
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| 28 | input as Real (Brief="input signal"); |
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| 29 | output as Real (Brief="output signal"); |
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| 30 | aux as Real (Brief="internal variable"); |
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| 31 | |
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| 32 | EQUATIONS |
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| 33 | |
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| 34 | "Calculate variable aux" |
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| 35 | alpha*diff(aux)=gain*input-aux; |
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| 36 | |
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| 37 | "Calculate output" |
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| 38 | output=beta*diff(aux) + aux; |
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| 39 | |
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| 40 | INITIAL |
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| 41 | diff(aux)=0; |
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| 42 | |
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| 43 | end |
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