Browsing by Author "Sempertegui Álvarez, Rodrigo Efraín"

Now showing 1 - 4 of 4

AC transmission network expansion planning considering losses
(Institute of Electrical and Electronics Engineers Inc., 2018) Morquecho Salto, Edgar Gonzalo; Torres Contreras, Santiago Patricio; Espinoza Abad, Juan Leonardo; Lopez Quizhpi, Julio César; Quizhpe Huiracocha, Klever Leonardo; Sempertegui Álvarez, Rodrigo Efraín; Solano Quinde, Lizandro Damián; Espinoza Abad, Juan Leonardo
This paper proposes to solve the transmission network expansion planning problem (TNEP) using the AC model formulated with full non-linear load flow equations, incorporating the cost of losses in the transmission network. Additionally, the decomposed formulation finds the location and amount of the reactive compensation needed in the system. A comparison between Evolutionary Programming (EP) and a variation of EP with a Cultural Algorithm (CEP) is presented to solve this very complex optimization problem. The results are obtained using Garver's 6-bus test system and IEEE 24-bus test system. Index Terms-AC model, Cultural Algorithm, Evolutionary Programming, Optimization, Transmission network expansion planning.
Micro grid laboratory as a tool for research on non-conventional energy sources in Ecuador
(IEEE, 2018) Espinoza Abad, Juan Leonardo; Sempertegui Álvarez, Rodrigo Efraín; Gonzalez Morales, Luis Gerardo; Gonzalez Morales, Luis Gerardo
This article presents to the scientific community technical and management issues taken into account for the implementation of the Micro Grid Laboratory, which will be part of “Balzay” Scientific, Technological and Research Center of the University of Cuenca. The paper describes the components that integrate the generation, storage and consumption of electrical energy from a combination of renewable and non-renewable sources that allow the emulation of a distributed generation network with the possibility of establishing technical criteria to recreate an intelligent network (Smart grid). The generation, storage and consumption components of the laboratory can interact through a control, monitoring and data acquisition system (SCADA) that allows automation of energy management for teaching and research purposes, as well as the possibility of interconnection with the local grid.
Modelación dinámica de la demanda y oferta de una micro-red eléctrica
(Universidad de Cuenca, Facultad de Ingeniería, 2014) Cabrera Tacuri, Andrés Eulalio; Cueva Camacho, Hugo Xavier; Sempertegui Álvarez, Rodrigo Efraín; Espinoza Abad, Juan Leonardo; Guevara Toledo, Andrea Patricia; Ochoa Correa, Danny Vinicio
In this paper a dynamic simulation model is proposed to forecast both energy supply and demand throughout the day of an electrical micro-grid, of a home equipped with photovoltaic panels. The supply forecast considers both physical and climatic parameters, while the demand forecast is based on the different devices that are connected and the activity of the residents. The system enables the elaboration of the daily load and generation curves of the micro-grid.
Registrador local de parámetros eléctricos para determinar el comportamiento de la demanda residencial en la ciudad de Cuenca
(2019) Guamán Àvila, Alex Sebastián; Pesántez Palacios, Aurelio Antonio; Espinoza Abad, Juan Leonardo; Sempertegui Álvarez, Rodrigo Efraín
The aim of this research is to present an electronic instrument, developed locally, which allows to log electrical data and to model energy consumptions of homes in the city of Cuenca-Ecuador. This hands-on research is carried out in order to identify the energy behavior of the electrical demand and to corroborate that the refrigerator is the electric appliance with the most energy consumption inside the homes. By means of real-time measurements it is possible to get first-hand values of electrical parameters at the subscriber level, which has not yet been done in the residential sector of the country. For this reason, an electronic device is developed, which, through firmware programming, delivers RMS voltage, RMS current, power factor and the active power. The equipment records the parameters continuously in periods of one second. This device was developed with relatively low economic resources so it could be disseminated and used massively. The importance of having the electrical parameters in real time begins with the final elimination of consumption speculation based on estimations and paves the way to control the demand from the user side. Through modeling and analysis of the results and the energy consumption curves, energy consumption policies are also proposed within the residential sector, suggesting to change the behavior of the electric energy consumption. In the same way, based on the analysis of the results, it is possible to contribute with technical criteria of energy efficiency for an adequate dimensioning of electrical equipment that conform the distribution system in the residential sector of Cuenca.