modelVariablePowerTransformer
Power transformer including iron losses with variable parameters
Information
The VariablePowerTransformer is a two port with variable parameters. The left port voltage v1, left port current i1, right port voltage v2 and right port current i2 are connected by the following relations:
v1 = R1 *i1 + jωL_1s *i1 + R_Fe*jωL_h/(R_Fe + jωL_h)*(i1 + i2')
v2' = R2'*i2' + jωL_2s'*i2' + R_Fe*jωL_h/(R_Fe + jωL_h)*(i1 + i2')
v2'=w1_w2*v2; i2'=i2/w1_w2; L_2s'=(w1_w2)^2*L_2s; R2'=(w1_w2)^2*R2
All parameters are specified by independent input signals.
Attention!!!
To ensure that the phasor domain-based model works in a quasi-stationary
mode, all input signals may alter only very slowly in comparison
with both the nominal frequency f=ω/(2π) and the dominant
time constant of the phasor domain-based model.
-
- Main Authors:
- Matthias Vetter, Simon Schwunk
Fraunhofer ISE, Freiburg
email: matthias.vetter@ise.fraunhofer.de
- and
- Olaf Enge-Rosenblatt
Fraunhofer IIS/EAS, Dresden
email: olaf.enge@eas.iis.fraunhofer.de
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Blocks.Interfaces.RealInput | R1 | Primary winding's resistance via input signal [Ohm] | |
| Modelica.Blocks.Interfaces.RealInput | R2 | Secondary winding's resistance via input signal [Ohm] | |
| Modelica.Blocks.Interfaces.RealInput | R_Fe | Resistance due to iron loss via input signal [Ohm] | |
| Modelica.Blocks.Interfaces.RealInput | L_h | Main inductance via input signal [H] | |
| Modelica.Blocks.Interfaces.RealInput | L_1s | Primary stray inductance via input signal [H] | |
| Modelica.Blocks.Interfaces.RealInput | L_2s | Secondary stray inductance via input signal [H] | |
| Modelica.Blocks.Interfaces.RealInput | w1_w2 | Turns ratio via input signal | |
| Modelica.Blocks.Interfaces.RealInput | phase | Phase shift via input signal [rad] | |
| ComplexLib.SinglePhase.Interfaces.PosComplexPin | pin_p_1 | Positive complex pin of primary winding | |
| ComplexLib.SinglePhase.Interfaces.PosComplexPin | pin_p_2 | Positive complex pin of secondary winding | |
| ComplexLib.SinglePhase.Interfaces.NegComplexPin | pin_n_1 | Negative complex pin of primary winding | |
| ComplexLib.SinglePhase.Interfaces.NegComplexPin | pin_n_2 | Positive complex pin of secondary winding |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| ComplexLib.SinglePhase.Basic.VariableResistor | resistor1 | ||
| ComplexLib.SinglePhase.Basic.VariableResistor | resistor2 | ||
| ComplexLib.SinglePhase.Basic.VariableResistor | resistance_Fe | ||
| ComplexLib.SinglePhase.Basic.VariableInductor | inductance_h | ||
| ComplexLib.SinglePhase.Basic.VariableInductor | inductance1s | ||
| ComplexLib.SinglePhase.Basic.VariableInductor | inductance2s | ||
| VariableIdealTransformer | idealTransformer |