4
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Metodología basada en Cadenas de Markov para la Predicción de la Demanda y Toma de Decisiones en el corto plazo. Caso de Estudio: Empresa Eléctrica Quito Translated title: Short Term Demand Forecasting methodology for Power Decision Making Based on Markov Chain. Study Case - EEQ

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Resumen: La investigación del presente trabajo está centrada en determinar el pronóstico de la demanda de potencia eléctrica en corto plazo. Para ello, se utilizó y se comparó los “perfiles de demanda” y la señal en tiempo real de la demanda eléctrica de la Empresa Eléctrica Quito S.A, EEQ, para llegar a determinar el perfil más esperado en el día. En este sentido, se utilizó el Modelo Oculto de Markov (Hidden Markov Model, HMM) para el pronóstico de la demanda en horizonte de tiempo de corto plazo. Para esto, primeramente se realizó un proceso de aprendizaje/entrenamiento al modelo con la base de datos Sistema de Información Validada Operativa, SIVO. Posteriormente, se realizó el proceso de descubrimiento de perfiles de demanda, que permitirá en pasos posteriores encontrar el perfil más esperado a ocurrir durante el día. La propuesta establece un “área de demanda esperada” que se convierte en una referencia que define el comportamiento de la demanda lo largo del día. Se realizó una evaluación en un periodo de 30 días de la metodología aplicada al sistema de la EEQ, y se observó que la herramienta acierta en un 86% de los casos y el valor de demanda en tiempo real se encuentra dentro de la banda de demanda esperada. El propósito de este trabajo es brindar una aplicación a los operadores del Sistema Nacional Interconectado, SNI, del Operador Nacional, CENACE, que permita tomar decisiones en el periodo de corto plazo optimizando los recursos de generadores existentes.

          Translated abstract

          Abstract: This investigation is focused on the prediction of the electrical demand in short time. For this purpose, the “demand profiles” and the real time signal of the electrical demand of the Empresa Eléctrica Quito S.A. are used in order to determine which profile is expected to happen during the day. In this sense, this study uses the Hidden Markov Model for forecasting the electrical demand in short time. This approach first applies a learning/training process using data from the Sistema de Información Validada Operativa (SIVO). Later, a discovery process of demand profiles is performed in order to determine the most expected profile to happen during the day. This approach establishes an “expected demand area” that shall be a reference for the definitive behavior of the electrical demand. This methodology was applied over the EEQ system and evaluated during 30 days. The final tool successes 86% of the cases and the actual value of the electrical demand in real time is inside of the band of the expected demand area.The purpose of this work is to build an application that assist operators of the National Interconnected System, NIS, to make the decisions in short time, optimizing the resources for generation.

          Related collections

          Most cited references5

          • Record: found
          • Abstract: found
          • Article: not found

          The box plot: a simple visual method to interpret data.

          Exploratory data analysis involves the use of statistical techniques to identify patterns that may be hidden in a group of numbers. One of these techniques is the "box plot," which is used to visually summarize and compare groups of data. The box plot uses the median, the approximate quartiles, and the lowest and highest data points to convey the level, spread, and symmetry of a distribution of data values. It can also be easily refined to identify outlier data values and can be easily constructed by hand. We apply box plots to tabular data from two recently published articles to show how readers can use box plots to improve the interpretation of data in complex tables. The box plot, like other visual methods, is more than a substitute for a table: It is a tool that can improve our reasoning about quantitative information. We recommend that the box plot be used more frequently.
            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            Comparison of hierarchical cluster analysis methods by cophenetic correlation

              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              AN INTRODUCTION TO HIDDEN MARKOV MODELS AND BAYESIAN NETWORKS

                Bookmark

                Author and article information

                Journal
                rte
                Revista Técnica energía
                Revista Técnica energía
                Operador Nacional de Electricidad CENACE (Quito, Pichincha, Ecuador )
                1390-5074
                2602-8492
                December 2018
                : 15
                : 1
                : 44-50
                Affiliations
                [2] Quito orgnameOperador Nacional de Electricidad, CENACE, Ecuador pbarrera@ 123456cenace.org.ec.
                [1] Quito orgnameOperador Nacional de Electricidad, CENACE, Ecuador rsanchez@ 123456cenace.org.ec.
                Article
                S2602-84922018000200044 S2602-8492(18)01500100044
                10.37116/revistaenergia.v15.n1.2018.322
                21bbd748-416d-4d33-b02c-8226a226b48c

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 24 July 2018
                : 14 May 2018
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 9, Pages: 7
                Product

                SciELO null


                hidden markov model,artificial intelligence,Predicción de Demanda,Machine Learning,Modelo de Markov,prediction of electrical demand,machine learning

                Comments

                Comment on this article