Resonances and overvoltages in a medium-voltage fan motor drive with long cables in an underground mine

José Rodríguez, Jorge Pontt, César Silva, Rodrigo Musalem, Patricio Newman, René Vargas, Sergio Fuentes

Resultado de la investigación: Contribución a una revistaArtículo

44 Citas (Scopus)

Resumen

Underground mining is characterized by space constraints forcing the use of long cables to feed large machines, where the application of variable speed drives can generate overvoltages at the machine terminals. This paper presents the analysis and mitigation of harmful overvoltages detected in inverter-fed 1400-hp 13.8-kV motors used for air ventilation in an underground mine. The possible causes of the overvoltages, namely wave reflection and resonance, are described theoretically and simulated. On-site direct voltage measurements at the 13.8-kV motor terminals confirmed that resonance was the dominant phenomenon. Based on this study, a suitable low-pass filter was designed, constructed, and installed. Finally, the adequate operation of such filter is demonstrated by further on-site measurements.

Idioma originalInglés
Páginas (desde-hasta)856-863
Número de páginas8
PublicaciónIEEE Transactions on Industry Applications
Volumen42
N.º3
DOI
EstadoPublicada - 1 may 2006

Áreas temáticas de ASJC Scopus

  • Ingeniería de control y sistemas
  • Ingeniería industrial y de fabricación
  • Ingeniería eléctrica y electrónica

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