Modelica.Electrical.QuasiStationary.Machines.Interfaces

SpacePhasor connector and PartialMachines

Information


This package contains the quasi stationary space phasor connector and partial models for quasi stationary machine models.

Extends from Modelica.Icons.InterfacesPackage (Icon for packages containing interfaces).

Package Content

NameDescription
Modelica.Electrical.QuasiStationary.Machines.Interfaces.PartialBasicTransformer PartialBasicTransformer Partial model of three-phase transformer

Modelica.Electrical.QuasiStationary.Machines.Interfaces.PartialBasicTransformer Modelica.Electrical.QuasiStationary.Machines.Interfaces.PartialBasicTransformer

Partial model of three-phase transformer

Information


Partial model of a three-phase transformer, containing primary and secondary resistances and stray inductances, as well as the iron core.
Circuit layout (vector group) of primary and secondary windings have to be defined.

Default values for transformer's parameters (a realistic example) are:
turns ratio n 1
nominal frequency fNominal 50Hz
nominal voltage per phase 100V RMS
nominal current per phase 100A RMS
nominal apparent power 30kVA
primary resistance R1 0.005Ohm per phase at reference temperature
reference temperature T1Ref 20°C
temperature coefficient alpha20_1 01/K
primary stray inductance L1sigma 78E-6H per phase
secondary resistance R2 0.005Ohm per phase at reference temperature
reference temperature T2Ref 20°C
temperature coefficient alpha20_2 01/K
secondary stray inductance L2sigma 78E-6H per phase
operational temperature T1Operational 20°C
operational temperature T2Operational 20°C
These values give the operational parameters:
nominal voltage drop 0.05p.u.
nominal copper losses 300W

Extends from Modelica.Electrical.Machines.Icons.QuasiStationaryTransformer.

Parameters

NameDescription
nRatio primary voltage (line-to-line) / secondary voltage (line-to-line)
useThermalPortEnable / disable (=fixed temperatures) thermal port
Operational temperatures
T1OperationalOperational temperature of primary resistance [K]
T2OperationalOperational temperature of secondary resistance [K]
Nominal resistances and inductances
R1Primary resistance per phase at TRef [Ohm]
T1RefReference temperature of primary resistance [K]
alpha20_1Temperature coefficient of primary resistance at 20 degC [1/K]
L1sigmaPrimary stray inductance per phase [H]
R2Secondary resistance per phase at TRef [Ohm]
T2RefReference temperature of secondary resistance [K]
alpha20_2Temperature coefficient of secondary resistance at 20 degC [1/K]
L2sigmaSecondary stray inductance per phase [H]

Connectors

NameDescription
plug1Primary plug
plug2Secondary plug
thermalPort 

Automatically generated Mon Sep 23 17:20:36 2013.