Analysis of the blackout risk reduction when segmenting large power systems using HVDC lines
D. Gomila, B.A. Carreras, J.M. Reynolds-Barredo, P. Colet, and O. Gomis-Bellmunt
Submitted , (2022)
Large electrical transmission networks are susceptible to undergo very large blackouts due to cascading failures. We propose a method to segment power systems using high-voltage direct-current lines to reduce the risk of blackouts. The method consists in controlling the power flowing through HVDC lines during cascading failures in order to minimize the load shed of each blackout. As a result, the segmented grids have a substantially lower risk of blackouts than the original network. The control method is shown to work efficiently if the network is segmented in zones of similar size.