Abstract |
AC-DC converters are extensively used in industrial applications for ac and dc motor drives. The harmonics generated by the converters are high and the power factor is low, especially at the low output voltage range. In practice, a number of converters are operated from the same supply system. As a result, the overall power factor is changed significantly depending the control angles of the various converters. This paper investigates the harmonic behavior and the overall power factor if a number of converters are operated simultaneously supplying their respective load. |