https://revistas.utb.edu.co/index.php/tesea/issue/feed Transactions on Energy Systems and Engineering Applications 2021-07-30T20:59:20+00:00 Oscar Danilo Montoya Giraldo tesea@utb.edu.co Open Journal Systems <p><em>Transactions on Energy Systems and Engineering Applications</em> is an international journal that promotes research to solve real-life problems. The goal is to publish the highest quality research regarding applied mathematics and energy systems that cover all the engineering areas for solving complex and current issues. The Journal selects the articles based on high-quality standards, and it is edited by the Universidad Tecnológica de Bolívar.</p> <p><strong>ISSN:</strong> 2745-0120 (<em>Online</em>)<br><a href="http://creativecommons.org/licenses/by/4.0/" rel="license"><img src="https://i.creativecommons.org/l/by/4.0/88x31.png" alt="Licencia Creative Commons"></a></p> https://revistas.utb.edu.co/index.php/tesea/article/view/428 Herramienta de simulación para el análisis de flujo óptimo clásico utilizando multiplicadores de Lagrange 2021-07-30T20:59:20+00:00 Diego Anzola daanzolab@correo.udistrital.edu.co Julio Castro juecastror@correo.udistrital.edu.co Diego Giral dagiralr@udistrital.edu.co <p>El análisis del flujo óptimo es un problema complejo y desafiante por sus características no lineales. La inclusión de restricciones de potencia y los modelos de las líneas de transmisión hacen complejo determinar el respectivo despacho. Los multiplicadores de Lagrange son un método de optimización clásico que permite solucionar problemas de despacho económico de múltiples variables sujetas con diversas restricciones. Este articulo presenta el desarrollo de una herramienta de simulación denominada SOPF (Software Optimal Power Flow), desarrollada en Guide-Matlab y que permite analizar el problema de flujo óptimo clásico de un sistema de potencia con pérdidas y con restricciones de potencia activa, el simulador desarrollado es un herramienta académica de apoyo para los estudiantes, profesores y personas interesadas en la aplicación de algoritmos de optimización para la operación económica de sistemas eléctricos de potencia. Como métricas, el simulador determina el despacho de la potencia activa de cada generador, los costos de generación de la potencia despachada, el aporte de cada máquina, los costos incrementales y las pérdidas de acuerdo al balance de potencia. Finalmente, los resultados se presentan a través de dos casos de estudio: flujo óptimo clásico con pérdidas y sin restricciones de potencia activa y flujo óptimo clásico con pérdidas y con restricciones de potencia activa. Para ambos casos, se obtienen errores inferiores al 1 %.</p> 2021-07-30T00:00:00+00:00 Copyright (c) https://revistas.utb.edu.co/index.php/tesea/article/view/426 Demand Side Management Studies on Distributed Energy Resources: A Survey* 2021-07-30T03:42:53+00:00 S. Dhivya arulphd@yahoo.co.in R. Arul arulphd@yahoo.co.in <p>The number of distributed environmentally friendly energy sources and generators necessitates new operating methods and a power network board to preserve or even increase the efficiency and quality of the power supply. Similarly, the growth of matriculates promotes the formation of new institutional systems, in which power and power exchanges become increasingly essential. Because of how an inactive entity traditionally organizes distribution systems, the DG’s connection inevitably changes the system’s qualifications to which it is connected. As a consequence of the Distributed Generation, this presumption is currently legal and non-existent. This article glides on demand side management and analysis on distributed energy resources. Investigation of DSM along with zonal wise classification has been carried out in this survey. Its merits and applications are also presented.</p> 2021-07-30T00:00:00+00:00 Copyright (c) https://revistas.utb.edu.co/index.php/tesea/article/view/427 Control of a battery charger for electric vehicles with unity power factor 2021-07-30T03:43:33+00:00 Federico M. Serra fmserra@unsl.edu.ar Cristian H. De Angelo fmserra@unsl.edu.ar <p>A nonlinear controller for an electric vehicle battery charger is proposed in this work. The controller allows charging the battery bank with constant current and constant voltage charging profile, while ensuring unity power factor and low distortion in the grid current. A single model is made for the complete system and the controller is designed using interconnection and damping assignment. The proposed controller ensures the closed-loop stability and allows decoupling the system avoiding disturbances in the electric grid and battery bank. The proposal is validated with simulation results.</p> 2021-07-30T00:00:00+00:00 Copyright (c)