Desarrollo de un gemelo digital asociado a una linea de su transmisión de 69 kv para la detección temprana de anomalías

Abstract

CONDITIONING OF PROJECT PUBLICATION. representing an aspect, element, or parameter for study is generally accompanied by considerations that may be mechanical, structural, environmental, time-dependent, electrical, based on mathematical representations, etc. These considerations allow all the requirements to be met in order to obtain a 1:1 imitation of the element in question (not forgetting the tremendous computational effort required to consider each pre-established parameter). Despite this, these representations have certain limitations or areas of interest, which allow the objective of the study to be defined. In other words, considering practically all the phenomena involved may improve the margin of error, but due to limitations in design, computation, and information (historical data), assumptions are made in line with the topic of study and/or representation of the system. The reason why it is necessary to carry out a study on the 69 kV Puerto Inca-Naranjal subtransmission line is due to recurring interruptions in the Naranjal sector with no known cause, despite maintenance on the network, which affect residents in the sector and the stability of the electrical system. This led to the implementation of a digital twin on the Puerto Inca-Naranjal subtransmission line, with the aim of analyzing its behavior under different operating scenarios, thus determining possible anomalies affecting the system. This is determined using historical data provided by CNEL EP UN Milagro, which enabled the development of the entire single-line diagram, showing as a result new developments in the operating voltage range in that area (values less than 0.95 p.u.). To counteract this voltage drop, seven simulation scenarios are proposed: The implementation of the Montero 2 parallel subtransmission line - Puerto Inca subtransmission line, the incorporation of FACTS (STATCOM/SVS) devices and capacitor banks in the Puerto Inca and Naranjal busbars, the analysis for each alternative implemented with load variation, the simulation of subtransmission line removal, and the adjustment of the Puerto Inca and Naranjal transformer taps. From these scenarios, it is determined that selecting the STATCOM and capacitor bank option at the Naranjal busbar provides better voltage level delivery at the busbars, as well as the respective control, even with photovoltaic generation, which corresponds to the seventh scenario. Based on the results obtained from this last scenario, the application of STATCOM equipment is recommended for load and generation profiles with non-stationary irradiance. Otherwise, in the presence of stationary load and generation, the capacitor bank scenario is an attractive and functional option for the system.