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Fundamental Wave SM Electrical Excited

Electrical excited synchronous machine with optional damper cage

 

Description

Connections

Parameters

Modelica Standard Library

Description

The Fundamental Wave SM Electrical Excited (or SM Electrical Excited) component models an electrical excited synchronous induction machine with an optional damper cage. The symmetry of the stator is assumed.

The model takes the following loss effects into account:

• 

heat losses in the temperature dependent stator winding resistances

• 

heat losses in the temperature dependent excitation winding resistance

• 

optional, when enabled: 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

powerBalance

Power balance

powerBalance

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

ir

Damper cage currents

ir

pinep

Positive pin of excitation

pin_ep

pinen

Negative pin of excitation

pin_en

damperCageLossPower

Damper losses

damperCageLossPower

Parameters

General Parameters

Name

Default

Units

Description

Modelica ID

m

3

 

Number of stator phases

m

Jr

0.29

kgm2

Rotor moment of inertia

Jr

Use Support Flange

false

 

True (checked) means stator support is enabled

useSupport

Js

Jr

kgm2

Stator moment of inertia

Js

Use Thermal Port

false

 

True (checked) means heat port is enabled

useThermalPort

p

2

 

Number of pole pairs (Integer)

p

fs,nom

50

Hz

Nominal frequency

fsNominal

Ts,oper

293.15

K

Operational temperature of stator resistance

TsOperational

Effective Stator Turns

1

 

Effective number of stator turns

effectiveStatorTurns

Tr,oper

293.15

K

Operational temperature of (optional) damper cage

TrOperational

Te,oper

293.15

K

Operational excitation temperature

TeOperational

Excitation Parameters

Name

Default

Units

Description

Modelica ID

Vs,nom

100

V

Nominal stator voltage

VsNominal

Ie,oc

10

A

Open circuit excitation current @ 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

σe

0.025

1

Stray fraction of total excitation inductance

sigmae

Losses Parameters

Name

Default

Units

Description

Modelica ID

Friction Parameters

 

 

Friction loss parameter record

frictionParameters

Stator Core Parameters

 

 

Stator core loss parameter record; all parameters refer to stator side

statorCoreParameters

Stray Load Parameters

 

 

Stray load loss parameter record

strayLoadParameters

Brush

 

 

Brush loss parameter record

brushParameters

Nominal Resistances And Inductances Parameters

Name

Default

Units

Description

Modelica ID

Rs

0.03

Ω

Warm damper resistance in q-axis

Rs

Ts,ref

293.15

K

Reference temperature of stator resistance

TsRef

αs

0

1K

Temperature coefficient of stator resistance at 20 degC

alpha20s

Lsσ

120πfs,nom

H

Stator stray inductance per phase

Lssigma

Ls,0

Lsσ

H

Stator zero inductance

Lszero

Lmd

34πfs,nom

H

Main field inductance in d-axis

Lmd

Lmq

34πfs,nom

H

Main field inductance in q-axis

Lmq

Lrσd

140πfs,nom

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

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

Tr,ref

293.15

K

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

TrRef

αr

0

1K

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

alpha20r

Use Damper Cage

true

 

True (checked) means damper cage is enabled

useDamperCage

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 FundamentalWave

Magnetic FundamentalWave Basic Synchronous Machines

Magnetic Library