Energy interaction of two-link converters of a multi-motor drive with mains supply

It is known that the total power electrical loads consume from mains sum of their two components – active and reactive. Most electric drives modern industrial enterprises up to 40% reactive energy in relation energy. This results an increased full consumption thereby increasing load on supply mains. Modern are built as follows: rectifier-direct current link-inverter asynchronous motor. The at "mains-rectifier" interface, where required factor converter can be formed. higher factor, lower component consumed Thus, paper proposes a solution problem building highly efficient converting devices for powering motors with factor. In particular, discusses possible increase drive input two-link frequency converters based (controlled) rectifiers voltage inverters. author new ways control use AC rectifying fully controlled GTO, GCT thyristors, well pulse-width IGBT transistors. offers options construction these modeling proposed methods, confirming decrease passive current, and, consequence, simulation were obtained MathLab 10, basis method converter.