WOLFRAM SYSTEMMODELER

Brush

Model considering voltage drop of carbon brushes

Wolfram Language

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SystemModel["Modelica.Electrical.Machines.Losses.DCMachines.Brush"]
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Information

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

Model of voltage drop and losses of carbon brushes. For currents between -ILinear and ILinear the voltage drop shows a linear behavior as depicted in Fig. 1. For positive currents greater or equal than ILinear the voltage drop equals V. For negative currents less or equal than -ILinear the voltage drop equals -V.

brush.png
Fig. 1: Model of voltage drop of carbon brushes

Note:

The voltage drop v is the total voltage drop of all series connected brushes.

See also

BrushParameters

If it is desired to neglect brush losses, set brushParameters.V = 0 (this is the default).

Connectors (3)

p

Type: PositivePin

Description: Positive pin (potential p.v > n.v for positive voltage drop v)

n

Type: NegativePin

Description: Negative pin

heatPort

Type: HeatPort_a

Description: Optional port to which dissipated losses are transported in form of heat

Parameters (2)

useHeatPort

Value: false

Type: Boolean

Description: =true, if heatPort is enabled

brushParameters

Value:

Type: BrushParameters

Description: Brush loss parameters

Components (1)

brushParameters

Type: BrushParameters

Description: Brush loss parameters

Used in Components (11)

SM_ElectricalExcited

Electrical excited synchronous induction machine with damper cage

DC_PermanentMagnet

Permanent magnet DC machine

DC_ElectricalExcited

Electrical shunt/separate excited linear DC machine

DC_SeriesExcited

Series excited linear DC machine

DC_PermanentMagnet

Quasistationary permanent magnet DC machine

DC_ElectricalExcited

Quasistationary electrical shunt/separate excited linear DC machine

DC_SeriesExcited

Quasistationary series excited linear DC machine

Brush

Model considering voltage drop of carbon brushes

PartialBasicDCMachine

Partial model for DC machine

SM_ElectricalExcited

Electrical excited synchronous machine with optional damper cage

SM_ElectricalExcited

Electrical excited synchronous machine with optional damper cage