Los enlaces de interconexión entre las Áreas Centro y Sur en el Sistema Eléctrico Interconectado Nacional (SEIN) son líneas de transmisión en alta tensión (220 kV) y muy alta tensión (500 kV). Según las estadísticas indican que dichas líneas son vulnerables a diferentes tipos de fallas las cuales conllevan al riesgo de ocasionar la separación y el colapso eléctrico del Área Sur. Por lo mencionado es necesario contrarrestar el efecto de estas fallas mediante esquemas especiales de protección, que conecten o desconecten elementos del sistema para restablecer el equilibrio y evitar dichas posibles desconexiones seguidas de eventuales colapsos. En la presente tesis se ha desarrollado un esquema de control centralizado, basado de manera fundamental en la acción automática sobre reactores “shunt” de línea y de barra, para que mediante su desconexión sea posible regular lo...

High penetration of renewable energy sources (RES) leads to new challenges for protection devices. Protection schemes are typically designed according to the dynamic behavior of rotating machines as generation sources, while the RES dynamic response, mainly governed by inverters, is not considered. Consequently, some relevant algorithms of transmission line protection are experiencing challenges because of the fact that magnitude and phase angle comparison, amount of negative-sequence, and short-circuit current level are afected by the RES. Therefore, an in-depth study of this issue is necessary, one which considers the main causes and new methodological criteria solutions. This work presents an extensive literature review of the evaluation of electrical protection performance and the efects of RES connected to a power grid through inverters. Bibliographic data on many representative pub...

Electrifcation of Peru's rural areas is an issue of vital importance for economic growth. However, these areas still have poor quality electricity service or operate in a stand-alone mode with high cost of energy. To address this problem, one of the most promising strategies proposes the use of renewable energy technologies through the implementation of electrical microgrids (MGs). In this context, this research develops the analysis of 37 cases of rural villages throughout Peru in order to obtain the optimal MG design and the most feasible areas for its implementation, considering the associated costs, geographic location and load characteristics. For this purpose, an optimization process is carried out using HOMER Prosoftware with the aim of sizing the MG with the minimum net present cost and cost of energy. Then, an iterative process is developed in MATLAB software to map cost values,...

The ongoing transformation of electrical power systems highlights the weaknesses of the protection schemes of traditional devices because they are designed and confgured according to traditional characteristics of the system. Therefore, this work proposes a new methodology to study the fault-generated high frequency transient signals in transmission lines through multiresolution analysis. The high frequency components are determined by a new digital fltering technique based on mathematical morphology theory and a spectral energy index. Consequently, wide spectra of signals in the time–frequency domain are obtained. The performance of this method is verifed on an electrical power system modeled in ATP-Draw, where simulation and test signals are developed for diferent locations, fault resistances, inception angles, high frequency noises, sampling frequencies, types of faults, and shapes ...