VECTOR-CONTROLLED DUAL INVERTER SYSTEM FOR INDUCTION MOTOR, CAPABLE OF PERFORMING BACK ELECTROMOTIVE FORCE COMPENSATION AND REACTIVE POWER COMPENSATION BY USING SEPARATE INVERTERS

摘要

PURPOSE: A vector-controller dual inverter system is provided to prevent decrease in output of an induction motor by performing a back electromotive force compensation and a reactive power compensation by using separate inverters. CONSTITUTION: A vector-controller dual inverter system comprises a first inverter(120) and a second inverter(140). The first inverter is connected to one side of a stator coil of an induction motor(130), and performs a back electromotive force compensation of the induction motor. The second inverter is connected to the other side of the stator coil, and performs a reactive power compensation for the induction motor. The side of the first inverter, opposite to the induction motor is connected to a battery(110), and the side of the second inverter, opposite to the induction motor is connected to a capacitor(150).