A study on rotor FOC method using matrix converter fed induction motor with common-mode voltage reduction

Currently, most of researches on matrix converter concerns about indirect rotor flux oriented control (FOC) method use MC indirect space vector modulation (SVM) technique. This paper introduces a direct rotor flux oriented control method using MC fed induction motor with the direct space vector modulation technique. Furthermore, the proposed technique of common-mode voltage reduction in direct space vector has been firstly applied to reduce the bad effect of common-mode voltage on induction motor. The under-rated speed and field-weakening regions has been examined to verify the operation of matrix converter under different load conditions. The experiments are carried out with 5 hp induction motor fed by matrix converter to show the high dynamic performance for the proposed control system.