Browsing by Author "C29425C6-8F47-43F3-8412-6E5211DB899F"
Now showing items 1-20 of 45
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A complete fault location formulation for distribution systems using the k-nearest neighbors for regression and classification
Morales España, German Andres; Mora Flórez, Juan; Carrillo Caicedo, Gilberto (IEEE (São Paulo , Brasil), 2010-11-08)This paper presents an alternative to the traditional impedance based fault location methods, using a simple technique of the learning approaches called k-Nearest Neighbors (k-NN), where besides the fault location distance, ... -
A tight MIP formulation of the unit commitment problem with start-up and shut-down constraints
Gentile, C.; Morales España, German Andres; Ramos Galán, Andrés (2017-03-01)This paper provides the convex hull description of the single thermal Unit Commitment (UC) problem with the following basic operating constraints: (1) generation limits, (2) start-up and shut-down capabilities, and (3) ... -
A tight MIP formulation of the unit commitment problem with start-up and shut-down constraints
Gentile, C.; Morales España, German Andres; Ramos Galán, Andrés -
Addressing flexibility issues in clustered unit commitment formulations for generation expansion planning models
Tejada Arango, Diego Alejandro; Morales España, German Andres; Wogrin, Sonja; Centeno Hernáez, EfraimThis work proposes a Clustered Unit Commitment (CUC) formulation to accurately model flexibility requirements such as ramping, reserve, and startupshutdown constraints. The classic CUC intrinsically and hiddenly overestimates ... -
An MIP formulation for joint market-clearing of energy and reserves based on ramp scheduling
Morales España, German Andres; Ramos Galán, Andrés; García González, Javier (Association des Economistes de l'Energie (París, Francia), 04/06/2015)The day-ahead unit-commitment (UC)-based marketclearing (MC) is widely acknowledged to be the most economically efficient mechanism for scheduling resources in power systems. In conventional UC problems, power schedules ... -
An MIP formulation for joint market-clearing of energy and reserves based on ramp scheduling
Morales España, German Andres; Ramos Galán, Andrés; García González, Javier (2014-01-01)The day-ahead unit-commitment (UC)-based marketclearing (MC) is widely acknowledged to be the most economically efficient mechanism for scheduling resources in power systems. In conventional UC problems, power schedules ... -
Analysis of operation reserves in a hydrothermal electric system with high wind power share under demand and wind power uncertainties
Ramos Galán, Andrés; Morales España, German Andres; Rivier Abbad, Michel Luis; García González, Javier; Latorre Canteli, Jesús MaríaThe paper analyses the amount of operation reserves procured in a hydrothermal system to deal with wind power and demand uncertainty. The operation planning of the system is formulated as a detailed hourly unit commitment ... -
Analysis of operation reserves in a hydrothermal electric system with high wind power share under demand and wind power uncertainties
Ramos Galán, Andrés; Morales España, German Andres; Rivier Abbad, Michel Luis; García González, Javier; Latorre Canteli, Jesús MaríaThe paper analyses the amount of operation reserves procured in a hydrothermal system to deal with wind power and demand uncertainty. The operation planning of the system is formulated as a detailed hourly unit commitment ... -
Análisis en el plano r-x para localizar fallas de alta impedancia
Morales España, German Andres; Barrera Cárdenas, Rene; Ordóñez Plata, Gabriel (01/08/2009)Available: http://www.scielo.cl/pdf/ingeniare/v17n2/art10.pdf - Este artículo propone una herramienta de análisis en el plano R-X de un sistema en falla para resolver el problema de localización de fallas en sistemas de ... -
Assessment of operation reserves in a hydrothermal electric system with high wind generation
Bellido Miranda, Rafael; Ramos Galán, Andrés; Rivier Abbad, Michel Luis; García González, Javier; Latorre Canteli, Jesús María; Morales España, German Andres -
Assessment of operation reserves in a hydrothermal electric system with high wind generation
Bellido Miranda, Rafael; Ramos Galán, Andrés; Rivier Abbad, Michel Luis; García González, Javier; Latorre Canteli, Jesús María; Morales España, German Andres (European Cooperation in Science and Technology; European Cooperation in Science and Technology (Edimburgo, Reino Unido), 27/01/2016) -
Classification methodology and feature selection to assist fault location in power distribution systems
Mora Flórez, Juan; Morales España, German Andres; Pérez Londoño, Sandra Milena (01/06/2008)Available: http://ingenieria.udea.edu.co/grupos/revista/revistas/nro044/09rev_44.pdf - A classification methodology based on Support Vector Machines (SVM) is proposed to locate the faulted zone in power distribution ... -
Direct load control decision model for aggregated EV charging points
Sánchez Martín, Pedro; Sánchez González, Guillermo; Morales España, German Andres (2012-08-01)This paper details a decision model to implement Direct Load Control (DLC) on battery charging processes at Electric Vehicle Charging Points located at parking areas. The programming model combines optimally three types ... -
Dynamic ramping model including intraperiod ramp-rate changes in unit commitment
Sánchez Martín, Pedro; Correa-Posada, Carlos M.; Morales España, German Andres; Dueñas Martínez, Pablo (08/06/2016)El crecimiento de la generación renovable en todo el mundo está dando lugar a nuevos retos para una operación segura, fiable y económica de los sistemas eléctricos de potencia. De cara a afrontar los retos de una producción ... -
Dynamic ramping model including intraperiod ramp-rate changes in unit commitment
Correa-Posada, Carlos M.; Morales España, German Andres; Dueñas Martínez, Pablo; Sánchez Martín, Pedro (2017-01-01)The growing increase of renewable generation worldwide is posing new challenges for a secure, reliable, and economic operation of power systems. In order to face the uncertain and intermittent production of renewable ... -
Elimination of multiple estimation for fault location in radial power systems by using fundamental Single-End measurements
Morales España, German Andres; Mora Flórez, Juan; Vargas Torres, Hermann Raúl (2009-07-01)This paper presents a conceptual approach for eliminating the multiple estimation problem of impedance-based fault location methods applied to power distribution systems, using the available measurements of current and ... -
Elimination of multiple estimation for fault location in radial power systems by using fundamental Single-End measurements
Morales España, German Andres; Mora Flórez, Juan; Vargas Torres, Hermann Raúl (Sin editorial (Vancouver, Canadá), 21/07/2013)This paper presents a conceptual approach for eliminating the multiple estimation problem of impedance-based fault location methods applied to power distribution systems, using the available measurements of current and ... -
Estrategia de regresión basada en el método de los k vecinos más cercanos para la estimación de la distancia de falla en sistemas radiales
Morales España, German Andres; Mora Flórez, Juan; Vargas Torres, Hermann Raúl (2008-09-01) -
Evaluación del clasificador basado en los k vecinos más cercanos para la localización de la zona en falla en los sistemas de potencia
Mora Flórez, Juan; Morales España, German Andres; Barrera Cárdenas, Rene (01/12/2008)Available: http://www.revistaingenieria.unal.edu.co/Resumenes/28_3/11_794.pdf - En este artículo se presenta una estrategia de identificación del tipo de falla y localización de la misma, en un sistema de distribución ... -
Fault location method based on the determination of the minimum fault reactance for uncertainty loaded and unbalanced power distribution systems
Morales España, German Andres; Mora Flórez, Juan; Vargas Torres, Hermann Raúl (IEEE (São Paulo , Brasil), 2010-11-08)One of the widely recognized and most important aspects of power quality is related to power continuity. The fault location in power distribution systems is normally a not simple task, considering the complexity associated ...