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WOLFRAM SYSTEM MODELER

VariableResistor

Ideal linear electrical resistor with variable resistance

Wolfram Language

In[1]:=

SystemModel["Modelica.Electrical.Analog.Basic.VariableResistor"]

Out[1]:=

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

The linear resistor connects the branch voltage v with the branch current i by
i*R = v
The Resistance R is given as input signal.

Attention!!!
It is recommended that the R signal should not cross the zero value. Otherwise depending on the surrounding circuit the probability of singularities is high.

Parameters (4)

useHeatPort	Value: false Type: Boolean Description: = true, if heatPort is enabled
T	Value: T_ref Type: Temperature (K) Description: Fixed device temperature if useHeatPort = false
T_ref	Value: 300.15 Type: Temperature (K) Description: Reference temperature
alpha	Value: 0 Type: LinearTemperatureCoefficient (1/K) Description: Temperature coefficient of resistance (R_actual = R(1 + alpha(T_heatPort - T_ref))

Connectors (4)

	p	Type: PositivePin Description: Positive electrical pin
	n	Type: NegativePin Description: Negative electrical pin
	heatPort	Type: HeatPort_a Description: Conditional heat port
	R	Type: RealInput Description: 'input Real' as connector

Used in Examples (5)

	ShowVariableResistor Modelica.Electrical.Analog.Examples Simple demo of a VariableResistor model
	SMPM_Braking Modelica.Electrical.Machines.Examples.SynchronousMachines Test example: PermanentMagnetSynchronousMachine acting as brake
	DCSE_Start Modelica.Electrical.Machines.Examples.DCMachines Test example: DC with serial excitation starting with voltage ramp
	DCSE_SinglePhase Modelica.Electrical.Machines.Examples.DCMachines Test example: DC with serial excitation starting with voltage ramp
	SMPM_Braking Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.SynchronousMachines Test example: PermanentMagnetSynchronousMachine acting as brake

Used in Components (1)

VariableResistor

Modelica.Electrical.Polyphase.Basic

Ideal linear electrical resistors with variable resistance

Revisions

August 07, 2009 by Anton Haumer
temperature dependency of resistance added
March 11, 2009 by Christoph Clauss
conditional heat port added
June 7, 2004 by Christoph Clauss
changed, docu added
April 30, 2004 by Anton Haumer
implemented.