PLECS 3.1 Online Help |
Single-phase pi-section transmission line.
Electrical / Passive Components
The Pi-Section Line implements a single-phase transmission line with parameters lumped in pi sections.
A transmission line is characterized by a uniform distribution of inductance, resistance, capacitance and conductance along the line. However, in many cases these distributed parameters can be approximated by cascading multiple pi sections with discrete components. The figure below illustrates the electrical circuit used for the line model.
Let be the length of the line and
the number of pi sections representing the
line. The inductance
, the resistance
, the capacitance
and the
conductance
of the discrete elements can then be calculated from their
per-unit-length counterparts
,
,
and
using the following equations: