Voltage Stability Evaluation Indices

Abstract

The paper stndics the voltage stability in n power system using local indices and power-margins for voltage security and voltage collapse assessment. 'I'hehcir cntnputntim is bnscd on sensitivity rtutrix techtltques and &he hypotliesis of linear simulation of the systcin a t the load incrense for the in& vulnerable bus or for all buses fmm a voltage conlrol area. Results arc also presenlcd for a t& power systctn.