Modelica.Electrical.Analog.Interfaces

Information

This package contains connectors and interfaces (partial models) for analog electrical components.

Main Authors:

Christoph Clauß <clauss@eas.iis.fhg.de>
André Schneider <schneider@eas.iis.fhg.de>
Fraunhofer Institute for Integrated Circuits
Design Automation Department
Zeunerstraße 38
D-01069 Dresden

Version:

$Id: Modelica_Electrical_Analog_Interfaces.html,v 1.2 2000/06/20 22:49:57 Dag Exp $

Copyright:

Copyright (C) 1998-1999, Modelica Association and Fraunhofer-Gesellschaft.
The Modelica package is free software; it can be redistributed and/or modified under the terms of the Modelica license, see the license conditions and the accompanying disclaimer in the documentation of package Modelica in file "Modelica/package.mo".

Modelica.Electrical.Analog.Interfaces.Pin

Information

Modelica definition

connector Pin "Pin of an electrical component" 
  SIunits.Voltage v "Potential at the pin";
  flow SIunits.Current i "Current flowing into the pin";
end Pin;

Modelica.Electrical.Analog.Interfaces.OnePort

Information

Superclass of elements which have two electrical pins: the positive pin connector p, and the negative pin connector n. It is assumed that the current flowing into pin p is identical to the current flowing out of pin n. This current is provided explicitly as current i.

Modelica definition

partial model OnePort 
  "Component with two electrical pins p and n and current i from p to n"
   
  SIunits.Voltage v 
    "Voltage drop between the two pins (= p.v - n.v)";
  SIunits.Current i "Current flowing from pin p to pin n";
  Modelica.Electrical.Analog.Interfaces.PositivePin p;
  Modelica.Electrical.Analog.Interfaces.NegativePin n;
equation 
  v = p.v - n.v;
  0 = p.i + n.i;
  i = p.i;
end OnePort;

Modelica.Electrical.Analog.Interfaces.TwoPort

Modelica definition

partial model TwoPort 
  "Component with two electrical ports, including current" 
  SIunits.Voltage v1 "Voltage drop over the left port";
  SIunits.Voltage v2 "Voltage drop over the right port";
  SIunits.Current i1 
    "Current flowing from pos. to neg. pin of the left port";
  SIunits.Current i2 
    "Current flowing from pos. to neg. pin of the right port";
  Modelica.Electrical.Analog.Interfaces.PositivePin p1 
    "Positive pin of the left port";
  Modelica.Electrical.Analog.Interfaces.NegativePin n1 
    "Negative pin of the left port";
  Modelica.Electrical.Analog.Interfaces.PositivePin p2 
    "Positive pin of the right port";
  Modelica.Electrical.Analog.Interfaces.NegativePin n2 
    "Negative pin of the right port";
equation 
  v1 = p1.v - n1.v;
  v2 = p2.v - n2.v;
  0 = p1.i + n1.i;
  0 = p2.i + n2.i;
  i1 = p1.i;
  i2 = p2.i;
end TwoPort;

Modelica.Electrical.Analog.Interfaces.PositivePin

Information

Connectors PositivePin and NegativePin are nearly identical.
The only difference is that the icons are different in order
to identify more easily the pins of a component. Usually,
connector PositivePin is used for the positive and
connector NegativePin for the negative pin of an electrical
component.
 

Modelica definition

connector PositivePin "Positive pin of an electric component" 
  SIunits.Voltage v "Potential at the pin";
  flow SIunits.Current i "Current flowing into the pin";
end PositivePin;

Modelica.Electrical.Analog.Interfaces.NegativePin

Information

Connectors PositivePin and NegativePin are nearly identical.
The only difference is that the icons are different in order
to identify more easily the pins of a component. Usually,
connector PositivePin is used for the positive and
connector NegativePin for the negative pin of an electrical
component.
 

Modelica definition

connector NegativePin "Negative pin of an electric component" 
  SIunits.Voltage v "Potential at the pin";
  flow SIunits.Current i "Current flowing into the pin";
end NegativePin;

Modelica.Electrical.Analog.Interfaces.TwoPin

Modelica definition

partial model TwoPin "Component with one electrical port" 
  SIunits.Voltage v 
    "Voltage drop between the two pins (= p.v - n.v)";
  Modelica.Electrical.Analog.Interfaces.PositivePin p 
    "Positive pin";
  Modelica.Electrical.Analog.Interfaces.NegativePin n 
    "Negative pin";
equation 
  v = p.v - n.v;
end TwoPin;

Modelica.Electrical.Analog.Interfaces.AbsoluteSensor

Modelica definition

partial model AbsoluteSensor 
  "Base class to measure the absolute value of a pin variable" 
  extends Modelica.Icons.RotationalSensor;
  
  Modelica.Electrical.Analog.Interfaces.PositivePin p 
    "pin to be measured";
  Modelica.Blocks.Interfaces.OutPort outPort(final n=1);
end AbsoluteSensor;

Modelica.Electrical.Analog.Interfaces.RelativeSensor

Modelica definition

model RelativeSensor 
  "Base class to measure a relative variable between two pins" 
  extends Modelica.Icons.RotationalSensor;
  
  Modelica.Electrical.Analog.Interfaces.PositivePin p 
    "positive pin";
  Modelica.Electrical.Analog.Interfaces.NegativePin n 
    "negative pin";
  Modelica.Blocks.Interfaces.OutPort outPort(final n=1);
end RelativeSensor;

Modelica.Electrical.Analog.Interfaces.VoltageSource

Parameters

Name	Default	Description
offset	0	Voltage offset [V]
startTime	0	Time offset [s]

Modelica definition

partial model VoltageSource "Interface for voltage sources" 
  extends OnePort;
  
  parameter SIunits.Voltage offset=0 "Voltage offset";
  parameter SIunits.Time startTime=0 "Time offset";
  replaceable Modelica.Blocks.Interfaces.SignalSource signalSource(final offset={offset
        }, final startTime={startTime});
equation 
  v = signalSource.outPort.signal[1];
end VoltageSource;

Modelica.Electrical.Analog.Interfaces.CurrentSource

Parameters

Name	Default	Description
offset	0	Current offset [A]
startTime	0	Time offset [s]

Modelica definition

partial model CurrentSource "Interface for current sources" 
  extends OnePort;
  
  parameter SIunits.Current offset=0 "Current offset";
  parameter SIunits.Time startTime=0 "Time offset";
  replaceable Modelica.Blocks.Interfaces.SignalSource signalSource(final offset={offset
        }, final startTime={startTime});
equation 
  i = signalSource.outPort.signal[1];
end CurrentSource;