Impact of industry restructuring on the Chilean central interconnected system security and dynamic performance

In this work, a critical revision of the evolution of security and dynamic performance of the Chilean central interconnected system (CIS) is presented. The paper renders a description of the main events leading to partial or total blackouts, that have occurred in the CIS system. Also, a classification of the type of instability as transient, small signal, or voltage collapse is attempted. Special attention is devoted to describe the root and the main lessons learned from the incidents