Abstract

The study aims to identify and assess the risks related to possible disturbances and contingencies within the National Interconnected System (SNI). Technical aspects are analyzed to determine the system’s capacity to recover quickly from such events and maintain the continuity of power supply in a safe manner. For this purpose, an SNI network, composed of generators, transformers, transmission lines and loads, has been chosen using data from institutions of the Ecuadorian electricity sector. The study followed a progression that encompassed data collection, power network modeling, model verification, study scenarios, transient stability simulations and analysis of results. Three cases were studied: steady state simulation, three-phase fault in the transmission line between node 1 and 11, and opening of the Termogas Machala Generator. The results showed that the lines connecting the Milagro 230 kV bus and CNEL Guayas - The Ríos are at 83.5% of their total load, causing congestion and a low voltage level of 0.9057 pu, close to the lower limit. At node 8 (CNEL The Oro), the voltage level is 0.95443 pu, adequate for the load supplied. Except at node 12 (Peru generator), the variations of P and Q, as well as voltage and angle, stabilize quickly at all nodes. At node 12, these variables show greater variation and take longer to stabilize.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.