Quasistationary Singlephase Ideal Closing Switch - MapleSim Help

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Quasistationary Singlephase Ideal Closing Switch

Ideal electrical closer

 

Description

Equations

Variables

Connections

Parameters

Modelica Standard Library

Description

The Quasistationary Singlephase Ideal Closing Switch (or Ideal Closing Switch) component models a two-terminal, single-pole, electrical switch that is closed when the control input is set to true, and opened otherwise.

To prevent singularities during switching, the opened switch has a (very low) default conductance Goffand the closed switch has a (very low) default resistance Ron. The limiting case is allowed, i.e., the closed resistance and open conductance can be exactly zero.

The model includes a Conditional heat port, but no temperature dependency.

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

Equations

ip=s1V{1controlGoffotherwise

ip+in=0

v=vpvn=s1A{Roncontrol1otherwise

ω=γ.p

γp=γn

Ploss=vi&conjugate0;

Thp={TheatPortUse Heat PortTotherwise

Variables

Name

Units

Description

Modelica ID

v

V

Complex RMS voltage

v

i

A

Complex RMS current

i

ω

rads

Angular frequency

omega

Ploss

W

Loss power leaving component via the heat port

LossPower

Thp

K

Temperature of HeatPort

T_heatPort

Connections

Name

Description

Modelica ID

pinp

Positive pin

pin_p

pinn

Negative pin

pin_n

Heat Port

Conditional heat port

heatPort

control

Boolean input

control

Parameters

General Parameters

Name

Default

Units

Description

Modelica ID

Ron

1·10−5

Ω

Closed switch resistance

Ron

Goff

1·10−5

S

Opened switch conductance

Goff

Use Heat Port

false

 

True means HeatPort is enabled

useHeatPort

Constant Parameters

Name

Default

Units

Description

Modelica ID

T

293.15

K

Fixed device temperature if Use Heat Port is false

T

Modelica Standard Library

The component described in this topic is from the Modelica Standard Library. To view the original documentation, which includes author and copyright information, click here.

See Also

Electrical Library

Quasistationary Overview

Quasistationary Singlephase Ideal Components