Fast voltage stability index for voltage stability assessment in power network

Abstract

This project is conducted to assess the method which can monitor and provide an early detection of voltage instability of the power system network. Voltage stability assessment carried out for different operating scenarios and the status of the network stability were monitored using FVSI index. A modified IEEE 6 bus feeder was used in this assessment with seven different scenarios were tested in Power World software. This scenarios includes the normal operation, contingencies and load shedding. The FVSI for all the scenarios were compared and effectiveness of the load shedding conducted were also assessed. A range of index threshold were determined in order to group the stability of the network and it is a determining factor for load shedding. This FVSI index assessment is able to monitor the status of the network pre and post load shedding.