Line stability index (LSI) for IEEE 14 Bus System in PSAT

Line stability index (LSI) is used to find the stability index for each line connected between two buses.

Introduction:

The Line Stability Index (LSI) is a critical metric in power system analysis used to evaluate the stability of individual transmission lines within a network. In this implementation, we calculate the FVSI for the modified IEEE 14 bus system utilizing MATLAB and the PSAT toolbox. This process involves assessing the voltage stability of the system through FVSI computation based on the results of a prior power flow analysis carried out using PSAT.

Prerequisites:

Before running this code, ensure that you have installed the PSAT toolbox within MATLAB. The PSAT toolbox offers an array of functionalities for power system analysis, and it's an essential tool for this implementation. Additionally, make sure that you have loaded the provided modified IEEE 14 bus system and performed a power flow analysis using PSAT.

Referance:

[1] Kisengeu, Susan Mumbi, Christopher Maina Muriithi, and George Nyauma Nyakoe. "Under voltage load shedding using hybrid ABC-PSO algorithm for voltage stability enhancement." Heliyon 7.10 (2021).