Quasistationary DC Electrical Excited - MapleSim Help

Online Help

All Products    Maple    MapleSim


Home : Support : Online Help : MapleSim : MapleSim Component Library : Electrical : Machines : Quasistationary : componentLibrary/electrical/machines/quasistationary/DCElectricalExcited

Quasistationary DC Electrical Excited

Electrical shunt/separate excited linear DC machine

 

Description

Variables

Connections

Parameters

Modelica Standard Library

Description

The Quasistationary DC Electrical Excited (or DC Electrical Excited) component models a DC Machine with electrical shunt or separate excitation. This model is fully compatible with the regular DC Electrical Excited model, the only difference is that electrical transients are neglected.

Variables

Name

Units

Description

Modelica ID

phiMechanical

rad

Mechanical angle of rotor against stator

phiMechanical

wMechanical

rads

Mechanical angular velocity of rotor against stator

wMechanical

tauElectrical

Nm

Electromagnetic torque

tauElectrical

tauShaft

Nm

Shaft torque

tauShaft

inertiaRotor

 

 

inertiaRotor

inertiaStator

 

 

inertiaStator

fixed

 

 

fixed

friction

 

 

friction

va

V

Armature voltage

va

ia

A

Armature current

ia

ra

 

 

ra

la

 

 

la

brush

 

 

brush

core

 

 

core

strayLoad

 

 

strayLoad

thermalAmbient

 

 

thermalAmbient

ve

V

Field excitation voltage

ve

ie

A

Field excitation current

ie

airGapDC

 

 

airGapDC

ground

 

 

ground

compoundDCExcitation

 

 

compoundDCExcitation

groundSE

 

 

groundSE

re

 

 

re

lesigma

 

 

lesigma

[1] flangeφinternalSupportφ

[2] inertiaRotorflangeaτ

Connections

Name

Description

Modelica ID

flange

Shaft

flange

pinan

Negative armature pin

pin_an

pinap

Positive armature pin

pin_ap

pinen

Negative excitation pin

pin_en

pinep

Positive excitation pin

pin_ep

support

Support at which the reaction torque is acting

support

thermalPort

Optional thermal port

thermalPort

Parameters

General Parameters

Name

Default

Units

Description

Modelica ID

Jr

 

kgm2

Rotor moment of inertia

Jr

Js

 

kgm2

Stator moment of inertia

Js

Ta,oper

 

K

Operational armature temperature

TaOperational

Te,oper

 

K

Operational (shunt) excitation temperature

TeOperational

Use Support Flange

false

 

True (checked) means enable stator support

useSupport

Use Thermal Port

false

 

True (checked) means thermal port is enabled

useThermalPort

Excitation Parameters

Name

Default

Units

Description

Modelica ID

αe

 

1K

Temperature coefficient of excitation resistance

alpha20e

Ie,nom

 

A

Nominal excitation current

IeNominal

Le

 

H

Total field excitation inductance

Le

Re

 

Ω

Warm field excitation resistance

Re

σe

 

 

Stray fraction of total excitation inductance

sigmae

Te,ref

 

K

Reference temperature of excitation resistance

TeRef

Brush Losses

Name

Default

Units

Description

Modelica ID

V

0

V

Total voltage drop of brushes, if ibrush>Ilinear

V

Ilinear

0.01Ianom

A

Current indicating linear voltage region of brush voltage drop

ILinear

See Brush for details of the brush loss model.

Core Losses

Name

Default

Units

Description

Modelica ID

Pref

0

W

Reference rotor core losses

PRef

Vref

Vnom

V

Reference RMS voltage

VRef

ωref

ωnom

rads

Reference angular velocity

wRef

See Core for details of the core loss model.

Friction Losses

Name

Default

Units

Description

Modelica ID

Pref

0

W

Reference friction losses

PRef

ωref

ωnom

rads

Reference angular velocity

wRef

pω

2

V

Exponent of friction

power_w

See Friction for details of the friction loss model.

Stray Load Losses

Name

Default

Units

Description

Modelica ID

Iref

Ianom

W

Reference RMS current

IRef

Pref

0

W

Reference friction losses

PRef

ωref

ωnom

rads

Reference angular velocity

wRef

pω

1

V

Exponent of stray load loss

power_w

See Stray Load for details of the stray load loss model.

Nominal Parameters Parameters

Name

Default

Units

Description

Modelica ID

Ia,nom

 

A

Nominal armature current

IaNominal

ωnom

 

rads

Nominal rotational speed

wNominal

Ta,nom

 

K

Nominal armature temperature

TaNominal

Va,nom

 

V

Nominal armature voltage

VaNominal

Nominal Resistances And Inductances Parameters

Name

Default

Units

Description

Modelica ID

αa

 

1K

Temperature coefficient of armature resistance

alpha20a

La

 

H

Armature inductance

La

Ra

 

Ω

Warm armature resistance

Ra

Ta,ref

 

K

Reference temperature of armature resistance

TaRef

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

Electrical Machines Overview