Branch Class¶
This page explains the variables and functions used in the branch class (branch).
Contents:
Branch Class¶
The branch class is one of the "super classes" in GUILDA. There are two main child classes that are derived from the branch class: 1. Branch Pi-Type Circuit Model Class (branch_pi), and 2. Branch Pi-Type Circuit with Transformer Model Class (branch_pi_transformer).
The branch super class is composed of
Variables
from: Busbar number that the branch (i.e., transmission lines) connect from.to: Busbar number that the branch (i.e., transmission lines) connect to.
Abstract Methods
y = get_admittance_matrix(obj): Function to generate the network's admittance matrix.
Branch Pi-Type Circuit Model Class¶
This child class implements the π-type circuit model of a transmission line with ground-to-ground capacitance.
Variables
-
x: Real and Imaginary part of the branch's impedance (i.e., Resistance \(\small (R)\) and Reactance \(\small (X)\)). The reciprocal of these values are Conductance \(\small (G)\) and Susceptance \(\small (B)\), respectively. -
y: Ground Capacitance of the branch.
Constructor Method
obj = branch_pi(from, to, x, y): The arguments are the variables explained above.
Branch Pi-Type Circuit with Transformer Model Class¶
This child class implements the π-type circuit model of a transmission line with ground capacitance and a phase adjusting transformer built in.
Variables
-
x: Real and Imaginary part of the branch's impedance (i.e., Resistance \(\small (R)\) and Reactance \(\small (X)\)). The reciprocal of these values are Conductance \(\small (G)\) and Susceptance \(\small (B)\), respectively. -
y: Ground Capacitance of the branch. -
tap：Transformer's gain. -
phase：Transformer's phase difference.
Constructor Method
obj = branch_pi_transformer(from, to, x, y, tap, phase): The arguments are the variables explained above.