Documentation

This is machine translation

Translated by Microsoft
Mouseover text to see original. Click the button below to return to the English verison of the page.

Note: This page has been translated by MathWorks. Please click here
To view all translated materals including this page, select Japan from the country navigator on the bottom of this page.

Two-Way Switch

Three-phase double-throw switch

Library

Switches & Breakers

Description

The Two-Way Switch block models a three-phase double-throw switch that uses an external signal to connect each phase of the port ~1 with the corresponding phase of either port ~2 or ~3.

The table shows how the external signal vT controls the block behavior.

ConditionBlock BehaviorResistance Parameter Used
vT ThresholdEach phase of port ~1 is connected to the corresponding phase of port ~2 via internal resistance. Port ~3 is unconnected.Open conductance (port ~1 to port ~3). Closed resistance (port ~1 to port ~2)
vT > ThresholdEach phase of port ~1 is connected to the corresponding phase of port ~3 via internal resistance. Port ~2 is unconnected.Open conductance (port ~1 to port ~2). Closed resistance (port ~1 to port ~3)

Parameters

Closed resistance

Resistance between ports ~1 and ~3 when the switch is closed. The default value is 0.001 Ohm.

Open conductance

Conductance between ports ~1 and ~2 when the switch is open. The default value is 1e-6 1/Ohm.

Threshold

Threshold voltage for the control port vT. When the voltage is above the threshold, the switch is closed. The default value is 0 V.

Ports

The block has the following ports:

~1

Expandable three-phase port

~2

Expandable three-phase port

~3

Expandable three-phase port

vT

Scalar control port, which is either a physical signal or an electrical port.

Introduced in R2013b

Was this topic helpful?