Comparación de métodos de separación de fuentes de descargas parcial para la caracterización de fallos en sistemas de aislamiento eléctricos
DOI:
https://doi.org/10.24054/rcta.v2i32.106Keywords:
Descargas parciales (DP), ruido eléctrico, fuentes de descargas parciales, métodos de separaciónAbstract
En la medición y ensayos de descargas parciales (DP) en equipamiento de potencia en ambiente industrial, existen variadas fuentes de ruido que se superponen a la señal de DP, alterando los resultados obtenidos. Estas perturbaciones pueden llevar a erróneas interpretaciones de la fuente u origen de DP. El daño que sufre la aislación eléctrica del dispositivo depende de la fuente de DP, por lo tanto, la separación e identificación de las fuentes de DP y ruido eléctrico son cruciales para efectuar un diagnóstico más preciso. Para mejorar la identificación de fuentes de DP dos métodos son propuestos y comparados: mapas Power-Ratio (PR) y Time-Frequency (TF). Ambos crean mapas bi-dimensionales, donde cada punto representa una DP, y cada coordenada una ecuación matemática correspondiente a su tipo de mapa. Estos métodos son estudiados para la separación de múltiples fuentes de DP que ocurren simultáneamente.
References
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Tesis Doctoral: “Separación de fuentes de descargas parciales y ruido eléctrico mediante análisis de potencia espectral en alta frecuencia”; Jorge Alfredo Ardila Rey. Universidad Carlos III de Madrid. Departamento de Ingeniería Eléctrica. Mayo de 2014.
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