Title: | Estudio de definición del sistema de protecciones de la Central Hidroeléctrica Saymirín y su coordinación |
Authors: | Fárez Pucha, Juan Pablo Mendieta Benavides, William Francisco |
metadata.dc.contributor.advisor: | Durán Noritz, Carlos |
Keywords: | Protecciones Electricas Flujo De Potencia Cortocircuitos Estabilidad Transitoria Elecaustro Central Hidroelectrica |
Issue Date: | 2013 |
metadata.dc.ucuenca.paginacion: | 499 páginas |
metadata.dc.description.city: | Cuenca |
Series/Report no.: | TE;356 |
metadata.dc.type: | bachelorThesis |
Abstract: | The electrical protection has an important role in the safety and proper operation of a power system. Particularly in the case of the generation and transport, their importance required an efficient system of protections that would ensure the integrity of its elements and continuity of electrical service.
Therefore, the hydroelectric Saymirín with the future integration of the phase V, requires the implementation of a protections system that allow energy generated and evacuated safely and reliably .The development of the first proposition for adjustment and coordination of the functions of protection of generators, power transformer, busbar and transmission line, is the main objective of this thesis work.
First, we provide an overview of project characteristics Saymirín V. Later, from a theoretical electric models generator, transformer, transmission line and information about CENTROSUR subtransmission network, establishing a suitable electrical model that allows make studies required in next chapters.
The power flow studies can determine the impact on the influence’s area of the plant in the subtransmission network, with the integration of phase V and the corresponding withdrawal of Phases I and II, in differents demand sceneries and network topology .
Short circuit study performed fault simulation set both inside and outside of the plant, with the purpose of determining the short circuit currents for the calibration and verification of certain settings of protection functions.
Considering Elecaustro’s requirements for protection of their electrical centrals , and then carefully consider the characteristics of each of the protection functions and their applicability on the generator, auxiliary services, transformer, busbar and transmission line , and also based in standards and literature on the subject defines the protection system scheme to be implemented in Saymirín V.
Using the results obtained in studies of power flow and short circuit, adjustment and coordination are made to each protection functions previously established to elements of the central, considering the characteristics of the device settings protection used.
The response of the plant when subjected to fault events is analyze, using a basic study of transient stability whit a simplified model. Using the criterion of equal areas and ideal operating conditions, determine the approximate angle and time critical fault clearing. These results are needed to estimate the validity in the performance of certain functions of protection.At the end is present a global view of the result of the proposed adjustment and calibration of the protection system in the central, as well as the conclusions and recommendations that have emerged following the development of this thesis work. |
Description: | Esta tesis presenta una propuesta deajuste y coordinación de protecciones eléctricas para los dos generadores, el transformador de potencia, barra colectora y línea de transmisión de la fase V de la central hidroeléctricaSaymirín, perteneciente a ELECAUSTRO S.A. 0bteniendo en principio un modelo eléctrico adecuado en base a las características de los equipos de potencia antes mencionados y de las red de subtransmisión de la CENTROSUR, y realizandoun estudio de flujos de potencia y de cortocircuitos que permitan determinar los valores de operaciónnormal y bajo falla de la central. Luego considerando los requerimientos de ELECAUSTRO, las recomendaciones de la literatura especializada y las prestaciones de los relés de protección utilizados, se determina el conjunto de protecciones a ser implantada en cada uno de los equiposprotegidos. Seguido se procede a realizar la propuesta de ajuste y coordinación de cada una de las protecciones elegidas considerando las características de cada equipo y las protecciones implementadas en la red de la CENTROSUR en la zona de interconexión con Saymirín. Así también se presenta un corto estudio de estabilidad transitoria que permite aproximar el comportamiento de una unidad de generación de Saymirín V frente a la red ante condiciones idealizadas de operación. Al final se presenta las conclusiones y recomendaciones resultado de este trabajo de tesis. |
metadata.dc.description.degree: | Ingeniero Eléctrico |
URI: | http://dspace.ucuenca.edu.ec/handle/123456789/4514 |
Appears in Collections: | Tesis de Pregrado
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