Efficient computational methods for a practical performance indexand the exact voltage collapse point in electric power systems

摘要

The authors develop a new performance index based on the centermanifold voltage collapse model as well as a new characteristic equationfor computation of the exact collapse point. This index provides adirect relationship between its value and the amount of load demand thatthe system can further withstand before collapse. This relation makesthe performance index readily interpretable to operators, making it morepractical than existing ones for assessing potential voltage collapse.The exact point of collapse is computed using a novel(