modelFaultTline
Extends from Ports.Port_p_n_f (Three port), Partials.LineBase (PI- and T-line base, 1-phase).
Information
Transmission line modelled as discretised telegraph-equation, 'pi-elements'.
The line of total length len is divided into elements of length delta = len/ne.
It is composed of n-1 interior elements of length delta and at each end of a half-element of length delta/2.
Therefore it contains ne interior nodes. Each element corresponds to a series inductor-resistor with values R and L corresponding to its length. A shunt parallel capacitor-conductor is liked to each node.
The minimum of ne is 1.
The fault is at relative length p(0< p< 1):
p*len = distance to fault from terminal term_p
p is restricted in such a way that faults do not occur in the end-elements of the line. Furthermore the position within an element is restricted to a relative position between 0.1 and 0.9 for numerical reasons.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Real | p | 0.5 | rel fault-pos (1/2ne <= p < 1 - 1/2ne) |
| SI.Length | len (from RXlineBase) | 100e3 | line length |
| Integer | ne (from RXlineBase) | 1 | number of line elements |
| Data | par (from RXlineBase) | line parameters | |
| Initialization | |||
| Types.Dynamics | dynType (from RXlineBase) | system.dynType | transient or steady-state model |
| PS.Voltage | v_start (from RXlineBase) | zeros(2) | start value of voltage drop |
| PS.Current | i_start (from RXlineBase) | zeros(2) | start value of current |
| PS.Current | iF_start | zeros(2) | start value of fault current |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Ports.TwoPin_p | term_p (from Port_p_n) | positive terminal | |
| Ports.TwoPin_n | term_n (from Port_p_n) | negative terminal | |
| Ports.TwoPin_n | term_f (from Port_p_n_f) | fault terminal |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| PS.Voltage | v | ||
| PS.Current | i | ||
| PS.Current | iF | ||
| PS.Current | iF_p |