WOLFRAM SYSTEM MODELER
CompareTransformersTransformer circuit to show the magnetization facilities |
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Diagram
Wolfram Language
In[1]:=
SystemModel["Modelica.Electrical.Analog.Examples.CompareTransformers"]
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Information
This information is part of the Modelica Standard Library maintained by the Modelica Association.
This example is to demonstrate the behaviour of transformer models. The Basic.Transformer, which consists of mutual coupled inductors, is compared with the ideal transformer model. If the ideal model is used with considerMagnetization=true leakage inductances are taken into account, otherwise not. The example is constructed in such a way that the ideal transformer circuit with considerMagnetization=true shows the same behaviour as the basic transformer.
Simulate until T=50 s with both considerMagnetization=false and considerMagnetization=true of the ideal transformer.
Plot in separate windows for comparison:
basicTransformer.p1.v and idealTransformer.p1.v
basicTransformer.p1.i and idealTransformer.p1.i
basicTransformer.p2.v and idealTransformer.p2.v
basicTransformer.p2.i and idealTransformer.p2.i
Parameters (14)
| Vdc |
Value: 0.1 Type: Voltage (V) Description: DC offset of voltage source |
|---|---|
| Vpeak |
Value: 0.1 Type: Voltage (V) Description: Peak voltage of voltage source |
| f |
Value: 10 Type: Frequency (Hz) Description: Frequency of voltage source |
| phi0 |
Value: pi / 2 Type: Angle (rad) Description: Phase of voltage source |
| n |
Value: 2 Type: Real Description: Turns ratio primary:secondary voltage |
| R1 |
Value: 0.01 Type: Resistance (Ω) Description: Primary resistance w.r.t. primary side |
| L1sigma |
Value: 0.05 / (2 * pi * f) Type: Inductance (H) Description: Primary leakage inductance w.r.t. primary side |
| Lm1 |
Value: 10. / (2 * pi * f) Type: Inductance (H) Description: Magnetizing inductance w.r.t. primary side |
| L2sigma |
Value: 0.05 / (2 * pi * f) / n ^ 2 Type: Inductance (H) Description: Secondary leakage inductance w.r.t. secondary side |
| R2 |
Value: 0.01 / n ^ 2 Type: Resistance (Ω) Description: Secondary resistance w.r.t. secondary side |
| RL |
Value: 1 / n ^ 2 Type: Resistance (Ω) Description: Load resistance |
| L1 |
Value: L1sigma + M * n Type: Inductance (H) Description: Primary no-load inductance |
| L2 |
Value: L2sigma + M / n Type: Inductance (H) Description: Secondary no-load inductance |
| M |
Value: Lm1 / n Type: Inductance (H) Description: Mutual inductance |
Outputs (8)
| v1B |
Default Value: resistor11.n.v Type: Voltage (V) Description: Primary voltage, basic transformer |
|---|---|
| i1B |
Default Value: resistor11.i Type: Current (A) Description: Primary current, basic transformer |
| v2B |
Default Value: resistor12.p.v Type: Voltage (V) Description: Secondary voltage, basic transformer |
| i2B |
Default Value: resistor12.i Type: Current (A) Description: Secondary current, basic transformer |
| v1I |
Default Value: resistor21.n.v Type: Voltage (V) Description: Primary voltage, basic transformer |
| i1I |
Default Value: resistor21.i Type: Current (A) Description: Primary current, basic transformer |
| v2I |
Default Value: resistor22.p.v Type: Voltage (V) Description: Secondary voltage, basic transformer |
| i2I |
Default Value: resistor22.i Type: Current (A) Description: Secondary current, basic transformer |
Components (16)
 |
sineVoltage1 |
Type: SineVoltage Description: Sine voltage source |
|---|---|---|
 |
ground11 |
Type: Ground Description: Ground node |
 |
resistor11 |
Type: Resistor Description: Ideal linear electrical resistor |
|
resistor12 |
Type: Resistor Description: Ideal linear electrical resistor |
|
load1 |
Type: Resistor Description: Ideal linear electrical resistor |
|
ground12 |
Type: Ground Description: Ground node |
|
sineVoltage2 |
Type: SineVoltage Description: Sine voltage source |
|
ground21 |
Type: Ground Description: Ground node |
|
resistor21 |
Type: Resistor Description: Ideal linear electrical resistor |
 |
inductor21 |
Type: Inductor Description: Ideal linear electrical inductor |
|
inductor22 |
Type: Inductor Description: Ideal linear electrical inductor |
|
resistor22 |
Type: Resistor Description: Ideal linear electrical resistor |
|
load2 |
Type: Resistor Description: Ideal linear electrical resistor |
|
ground22 |
Type: Ground Description: Ground node |
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basicTransformer |
Type: Transformer Description: Transformer with two ports |
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idealTransformer |
Type: IdealTransformer Description: Ideal transformer core with or without magnetization |
Revisions
- 2009
- by Anton Haumer
initially implemented