source: trunk/eml/electrical/electrical.mso @ 233

#*-------------------------------------------------------------------
* EMSO Model Library (EML) Copyright (C) 2004 - 2007 ALSOC.
*
* This LIBRARY is free software; you can distribute it and/or modify
* it under the therms of the ALSOC FREE LICENSE as available at
* http://www.enq.ufrgs.br/alsoc.
*
* EMSO Copyright (C) 2004 - 2007 ALSOC, original code
* from http://www.rps.eng.br Copyright (C) 2002-2004.
* All rights reserved.
*
* EMSO is distributed under the therms of the ALSOC LICENSE as
* available at http://www.enq.ufrgs.br/alsoc.
*
*---------------------------------------------------------------------
*
* Model of eletrical devices:
*       
*       - wire: this model holds a current and voltage.
*
*       - electrical_basic: basic model for electrical devices with one
*                               input and one output wire.
*
*       - electrical: model for an electrical device in which the
*                               inlet current is equal to the outlet one.
*
*       - Resistor: electrical resistor
*
*       - Capacitor:electrical capacitor
*
*       - Indutor: electrical indutor
*
*       - Supply: electrical supply
*
*----------------------------------------------------------------------
* Author: Rafael de Pelegrini Soares
* $Id: electrical.mso 73 2006-12-08 18:37:50Z paula $
*--------------------------------------------------------------------*#

using "types";

Model wire
        VARIABLES
        i as current(Lower=-100);
        V as voltage;
end

Model electrical_basic
        VARIABLES
in      inlet  as wire;
out     outlet as wire;
end

Model electrical as electrical_basic
        EQUATIONS
        outlet.i = inlet.i;
end

Model Resistor as electrical
        PARAMETERS
        R as resistance;
        EQUATIONS
        inlet.V - outlet.V = R * outlet.i;
end

Model Capacitor as electrical
        PARAMETERS
        C as capacitance;
        VARIABLES
        q as charge;
        EQUATIONS
        diff(q) = inlet.i;
        inlet.V - outlet.V = (1/C) * q;
end

Model Indutor as electrical
        PARAMETERS
        L as indutance;
        EQUATIONS
        inlet.V - outlet.V = L * diff(inlet.i);
end

Model Supply as electrical_basic
        PARAMETERS
        V  as voltage;
        V0 as voltage(Default = 0);
        EQUATIONS
        outlet.V = V0;
        inlet.V - outlet.V = V;
end