Evaluación del modelo de arco eléctrico para estimar niveles de Flicker
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El horno de arco eléctrico y su influencia en el sistema de energía se estudian en este trabajo. Se muestran tres modelos que permiten evaluar su comportamiento durante su funcionamiento. Estos modelos tienen distinto nivel de complejidad; el primer modelo, es una simple relación entre la longitud del arco y tensión de arco; el segundo, tiene en cuenta las principales no linealidades de la carga; el tercer modelo supone que característica corriente-tensión en el arco es lineal por tramos. El programa de transitorios electromagnéticos ATP fue utilizado para simular sistema de potencia y la carga. Los resultados simulados se compararon con las mediciones reales. El sistema de alimentación se modeló incluyendo el punto de conexión común y la red de distribución
Abstract : Electric arc furnace and its influence in the power system are studied in this paper. Three models that allow to evaluate its behavior during operation are shown. These models has different complexity level; the first model, is a simple relationship between arc length and arc voltage; the second one, takes into account the main nonlinearities of the load; the third model assumes that current-voltage characteristic in the arc is piece–wise linear. Electromagnetic transients program ATP was used to simulate power system and load. Simulated results are compared with actual measurements. Power system was modeled including the point of common connection and electric utility grid
Abstract : Electric arc furnace and its influence in the power system are studied in this paper. Three models that allow to evaluate its behavior during operation are shown. These models has different complexity level; the first model, is a simple relationship between arc length and arc voltage; the second one, takes into account the main nonlinearities of the load; the third model assumes that current-voltage characteristic in the arc is piece–wise linear. Electromagnetic transients program ATP was used to simulate power system and load. Simulated results are compared with actual measurements. Power system was modeled including the point of common connection and electric utility grid