WOLFRAM SYSTEM MODELER

IdealOpeningSwitch

Ideal electrical opener

Wolfram Language

In[1]:=
SystemModel["Modelica.Electrical.QuasiStatic.SinglePhase.Ideal.IdealOpeningSwitch"]
Out[1]:=

Information

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

The ideal opening switch has a positive pin p and a negative pin n. The switching behaviour is controlled by the input signal control. If control is true, pin p is not connected with negative pin n. Otherwise, pin p is 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 quasi-static 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 => switch open, false => p--n connected

Components (5)

v

Type: ComplexVoltage

Description: Complex voltage

i

Type: ComplexCurrent

Description: Complex current

s

Type: Complex

Description: Auxiliary variable

unitVoltage

Type: ComplexVoltage

Description: Complex electric voltage

unitCurrent

Type: ComplexCurrent

Description: Complex electric current

Used in Components (1)

IdealOpeningSwitch

Modelica.Electrical.QuasiStatic.Polyphase.Ideal

Polyphase ideal opener