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QuasiStatic SM Electrical Excited

Electrical excited synchronous machine with optional damper cage

 

Description

Connections

Parameters

Modelica Standard Library

Description

The QuasiStatic SM Electrical Excited component models a multiphase synchronous induction machine.

Resistances and stray inductances of the machine refer to an m-phase stator. The symmetry of the stator and the supply are assumed. Rotor asymmetries are modeled resistances and stray inductances in the d- and q-axis.

The following losses are modeled:

• 

heat losses in the temperature dependent stator winding resistances

• 

heat losses in the temperature dependent excitation winding resistance

• 

heat losses in the temperature dependent damper cage resistances

• 

brush losses in the excitation circuit

• 

friction losses

• 

core losses (only eddy current losses, no hysteresis losses)

• 

stray load losses

Connections

Name

Description

Modelica ID

flange

Shaft

flange

support

Support at which the reaction torque is acting

support

plugsp

Positive plug of stator

plug_sp

plugsn

Negative plug of stator

plug_sn

thermalPort

Thermal port of induction machines

thermalPort

pinep

Positive pin of excitation

pin_ep

pinen

Negative pin of excitation

pin_en

Parameters

General Parameters

Name

Default

Units

Description

Modelica ID

fs,nom

50

Hz

Nominal frequency

fsNominal

Jr

0.29

kgm2

Rotor moment of inertia

Jr

Js

Jr

kgm2

Stator moment of inertia

Js

Ls0

Lsσ

H

Stator sero inductance

Lszero

m

3

 

Number of stator phases

m

p

2

 

Number of pole pairs (Integer)

p

Te,oper

293.15

K

Operational excitation temperature

TeOperational

Tr,oper

293.15

K

Operational temperature of (optional) damper cage

TrOperational

Ts,oper

293.15

K

Operational temperature of stator resistance

TsOperational

Effective Stator Turns

1

 

Effective number of stator turns

effectiveStatorTurns

Use Support Flange

false

 

True (checked) means stator support is enabled

useSupport

Use Thermal Port

false

 

True (checked) means heat port is enabled

useThermalPort

Excitation Parameters

Name

Default

Units

Description

Modelica ID

Vs,nom

100

V

Nominal stator voltage

VsNominal

Ie,oc

10

A

Open circuit excitation current at nominal voltage and frequency

IeOpenCircuit

Re

2.5

Ω

Warm excitation resistance

Re

Te,ref

293.15

K

Reference temperature of excitation resistance

TeRef

αe

0

1K

Temperature coefficient of excitation resistance

alpha20e

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.

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.

Stator Core Losses

Name

Default

Units

Description

Modelica ID

Pref

0

W

Reference rotor core losses

PRef

Vref

 

V

Reference RMS voltage

VRef

ωref

2πfs,nom

rads

Reference angular velocity

wRef

See Core for details of the core 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 Resistances And Inductances Parameters

Name

Default

Units

Description

Modelica ID

αr

0

1K

Temperature coefficient of damper resistances in d- and q-axis

alpha20r

αs

0

1K

Temperature coefficient of stator resistance at 20 degC

alpha20s

Lmd

[1]

H

Main field inductance in d-axis

Lmd

Lmq

[1]

H

Main field inductance in q-axis

Lmq

Lrσd

[2]

H

Rotor leakage inductance, d-axis, w.r.t. stator side

Lrsigmad

Lrσq

Lrσd

H

Rotor leakage inductance, q-axis, w.r.t. stator side

Lrsigmaq

Lsσ

[3]

H

Stator stray inductance per phase

Lssigma

Rrd

0.04

Ω

Rotor resistance, d-axis, w.r.t. stator side

Rrd

Rrq

Rrd

Ω

Rotor resistance, q-axis, w.r.t. stator side

Rrq

Rs

0.03

Ω

Warm damper resistance in q-axis

Rs

Tr,ref

293.15

K

Reference temperature of damper resistances in d- and q-axis

TrRef

Ts,ref

293.15

K

Reference temperature of stator resistance

TsRef

Use Damper Cage

true

 

True (checked) means damper cage is enabled

useDamperCage

[1] 0.2387324146fsnom

[2] 0.025πfsnom

[3] 0.01591549431fsnom

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

Magnetic Quasistatic Fundamental Wave Basic Machine Synchronous Machines

Magnetic Quasistatic Fundamental Wave Basic Machines

Magnetic Quasistatic Fundamental Wave Overview

Magnetics Library