WOLFRAM SYSTEMMODELER

IdealClosingSwitch

Ideal electrical closer

Wolfram Language

In[1]:=
SystemModel["Modelica.Electrical.QuasiStationary.SinglePhase.Ideal.IdealClosingSwitch"]
Out[1]:=

Information

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

The ideal closing switch has a positive pin p and a negative pin n. The switching behaviour is controlled by input signal control. If control is true, pin p is connected with negative pin n. Otherwise, pin p is not connected with negative pin n.

In order to prevent singularities during switching, the opened switch has a (very low) conductance Goff and the closed switch has a (very low) resistance Ron. The limiting case is also allowed, i.e., the resistance Ron of the closed switch could be exactly zero and the conductance Goff of the open switch could be also exactly zero. Note, there are circuits, where a description with zero Ron or zero Goff is not possible.

Please note: In case of useHeatPort=true the temperature dependence of the electrical behavior is not modelled. The parameters are not temperature dependent.

Use with care: This switch is only intended to be used for structural changes, not for fast switching sequences, due to the quasistationary formulation.

Parameters (4)

useHeatPort

Value: false

Type: Boolean

Description: =true, if heatPort is enabled

T

Value: 293.15

Type: Temperature (K)

Description: Fixed device temperature if useHeatPort = false

Ron

Value: 1e-5

Type: Resistance (Ω)

Description: Closed switch resistance

Goff

Value: 1e-5

Type: Conductance (S)

Description: Opened switch conductance

Connectors (4)

pin_p

Type: PositivePin

Description: Positive quasi-static single-phase pin

pin_n

Type: NegativePin

Description: Negative quasi-static single-phase pin

heatPort

Type: HeatPort_a

Description: Conditional heat port

control

Type: BooleanInput

Description: true => p--n connected, false => switch open

Components (5)

v

Type: ComplexVoltage

Description: Complex voltage

i

Type: ComplexCurrent

Description: Complex current

s

Type: Complex

Description: Auxiliary variable

unitVoltage

Type: ComplexVoltage

unitCurrent

Type: ComplexCurrent

Used in Components (1)

IdealClosingSwitch

Modelica.Electrical.QuasiStationary.MultiPhase.Ideal

Multiphase ideal closer