Bibliographic citations
Santos, H., (2017). Geometría óptima de conductores para reducir el impacto de corona en el diseño y operación de líneas aéreas en 500 kv [Tesis, Universidad Nacional de Ingeniería]. http://hdl.handle.net/20.500.14076/17036
Santos, H., Geometría óptima de conductores para reducir el impacto de corona en el diseño y operación de líneas aéreas en 500 kv [Tesis]. : Universidad Nacional de Ingeniería; 2017. http://hdl.handle.net/20.500.14076/17036
@mastersthesis{renati/709855,
title = "Geometría óptima de conductores para reducir el impacto de corona en el diseño y operación de líneas aéreas en 500 kv",
author = "Santos Trinidad, Hubert Edwin",
publisher = "Universidad Nacional de Ingeniería",
year = "2017"
}
In this thesis, a method to calculate the optimum geometrical parameters of a 500kV AC overhead transmission line to reduce the impact of the corona phenomenon on the design and operation of the line is developed. A calculation expression to estimate the corona onset gradient as a function of bundled conductor configuration, altitude and weather conditions along the route trace is also proposed. The empirical expression of the corona onset gradient calculation was obtained from data collected from experimental research projects using corona cages to evaluate corona performance at different altitudes. Corona effect intensity measurements were performed at locations with altitudes up to 1900 msnm and on various conductor configurations. To model the influence of the bundle conductor configuration, climate and altitude on the corona onset gradient and estimate its value in different operating conditions of the line, data processing techniques and tools in Matlab were used. In the development of the method of calculation of the optimal geometrical parameters of the line the genetic algorithm technique was used. The individual and the fitness function were represented by the geometrical parameters of the line and the corona losses, respectively. The optimization was carried out in several scenarios defined by the altitude, possible weather conditions and standard towers available for 500 kV lines. The optimization of the geometric parameters allows to achieve an economical design of the line, applying properly the technical considerations related by corona on the conductors. Compared to the traditional design, bundle configurations are obtained with smaller size and number of conductors, as well as compact smaller towers. The proposed calculation expression for the corona onset gradient allows to estimate its value in high altitude scenarios.
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