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      Errores en el comportamiento de la frecuencia en el SEN cubano utilizando esquemas concentrados Translated title: Errors in frequency behavior with concentrated models in Cuban Electric Power System

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          Abstract

          La evaluación de los errores en el comportamiento de la frecuencia en condiciones de perturbación de un sistema eléctrico al utilizar modelos concentrados en los cálculos que no tienen en cuenta la existencia de oscilaciones locales e inter áreas de la frecuencia es esencial para obtener ajustes confiables de los sistemas de descarga automática por baja frecuencia. En el trabajo se toma como base de cálculo el escenario perspectivo del sistema electroenergético nacional cubano (SEN) para el año 2025 con la inclusión de dos ciclos combinados y considerando el efecto de la carga no lineal que representan tanto las acerías por arco eléctrico como la aleatoriedad de la carga incluyendo la debida a turbulencias por aerogeneradores. Se concluye con los valores de df/dt medidos en nodos de carga así como la caída de frecuencia en esos nodos se mantienen inferiores a los valores medidos en los nodos generadores.

          Translated abstract

          Evaluation of frequency behavior errors under disturbance conditions of an electrical power system is essential in order to obtain reliable settings of DAF schemes. Models based in concentrated systems cannot evaluate the influence of local and inter areas oscillations of frequency which are important in the reliable setting of DAF systems. An evaluation of these errors in future Cuban Electric Power System is the main objective of this paper. In this work is taken as a basis for calculating the prospective scenario of the Cuban Power System with the inclusion of two combined cycle and considering the effect of the nonlinear load representing both steelworks arc as randomness of the load due to wind turbines turbulence. It concludes with the values of df / dt measured load nodes and the frequency drop at these nodes are kept lower than the measured values generators nodes.

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          Most cited references8

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          Power System Stability and Control

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            The Impact of Combined-Cycle Gas Turbine Short-Term Dynamics on Frequency Control

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              Economic dispatch of a small utility with a frequency based reserve policy

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                Author and article information

                Journal
                rie
                Ingeniería Energética
                Energética
                Universidad Tecnológica de La Habana José Antonio Echeverría,Cujae (La Habana, , Cuba )
                1815-5901
                December 2016
                : 37
                : 3
                : 186-194
                Affiliations
                [01] La Habana orgnameMINEM orgdiv1Unión Eléctrica Cuba
                [02] La Habana orgnameCujae orgdiv1Centro de Investigaciones y Pruebas Electroenergéticas Cuba
                Article
                S1815-59012016000300004 S1815-5901(16)03700300004
                995e1782-25fe-4bec-9f64-d195daa7b1e4

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

                History
                : April 2015
                : January 2016
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 10, Pages: 9
                Product

                SciELO Cuba

                Categories
                TRABAJO TEORICOEXPERIMENTAL

                estatismo de control de los generadores,control primario de la frecuencia,constante de amortiguamiento,control de la frecuencia,speed droop control of generators,primary frequency control,load damping constant,load frequency control

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