Voltage stability index based on Thevenin equivalent for electrical power systems

• Grant number: 18/09143-2
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: August 01, 2018
• End date: July 31, 2019
• Field of knowledge: Engineering - Electrical Engineering - Power Systems
• Principal Investigator: Carlos Alberto de Castro Junior
• Grantee: Gabriel Fernandes Dias
• Host Institution: Faculdade de Engenharia Elétrica e de Computação (FEEC). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

The idea of this research work is to study and implement an efficient voltage stability index based on Thevenin equivalent. This index relies on the idea of maximum power transfer in linear electrical circuits. This index can be computed for all system buses for a certain operating point, providing a fast estimate of the systems loading margin. Besides, it is able to identify its critical buses. The evaluation of the index will be based on simulations involving small to large power system data, including comparisons with other methods already known in the literature. (AU)