Correctness in Power Factor of Induction Motor by using Active Filters

Abstract

This paper proposes a novel method of correcting power factor of an induction motor by the making the use of active power filters. In the electrical power system mostly 80% to 85% power factor is reduced by using induction motor as a load in various industries for acting as a prime mover. The induction motor running with a little power factor may cause power quality problems in the electrical power system. Due to very little power factor the load draws high starting current from the electrical grid, this causes various problems like voltage fluctuation, voltage sag and sometimes warmth the winding of the induction machine. Therefore, it is required to develop a method which uses active filters for improving the power factor of the induction motor