modelTLine3
Extends from Modelica.Electrical.Analog.Interfaces.TwoPort (Component with two electrical ports, including current), Modelica.Icons.ObsoleteModel (Icon for classes that are obsolete and will be removed in later versions).
Information
Lossless transmission line with characteristic impedance Z0 and frequency F The lossless transmission line TLine3 is a two Port. Both port branches consist of a resistor with value of the characteristic impedance Z0 and a controlled voltage source that takes into consideration the transmission delay. For further details see [Branin1967]. Resistance R' and conductance C' per meter are assumed to be zero. The characteristic impedance Z0 can be derived from inductance and capacitance per length (L' resp. C'), i. e. Z0 = sqrt(L'/C'). The length of the line is equal to a quarter of the wavelength corresponding to the frequency F, i. e. the transmission delay is the quotient of 4 and F. In this case, the characteristic impedance is called natural impedance.
References: [Branin1967], [Hoefer1985]
Note:
This model is replaced by TLine with appropriate parameterization.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| SI.Resistance | Z0 | Natural impedance | |
| SI.Frequency | F | Frequency |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| PositivePin | p1 (from FourPin) | Positive electrical pin of port 1 | |
| NegativePin | n1 (from FourPin) | Negative electrical pin of port 1 | |
| PositivePin | p2 (from FourPin) | Positive electrical pin of port 2 | |
| NegativePin | n2 (from FourPin) | Negative electrical pin of port 2 |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| SI.Voltage | v1 (from FourPin) | Voltage drop of port 1 (= p1.v - n1.v) | |
| SI.Voltage | v2 (from FourPin) | Voltage drop of port 2 (= p2.v - n2.v) | |
| SI.Current | i1 (from FourPin) | Current flowing from pos. to neg. pin of port 1 | |
| SI.Current | i2 (from FourPin) | Current flowing from pos. to neg. pin of port 2 | |
| SI.Voltage | es | Voltage source of forward travelling wave | |
| SI.Voltage | er | Voltage source of reflected wave |
Revisions
- 1998
by Joachim Haase
initially implemented