Performance of Induction motor with multilevel Inverter

Abstract

Three-phase squirrel-cage induction motors are considered the backbone of any industry and are widely used in the industry due to the many advantages of low cost, high reliability, very simple rotor construction and no switch and carbon brush. In the recent past, multilevel inverter technology has become a very important alternative in the field of high voltage and medium voltage control applications in the energy industry. Multilevel inverters offer better harmonic profiles compared to conventional two-level inverters and are widely used in high power applications with medium voltage motors for better performance characteristics. In this document, a five-phase three-phase CHBMLI induction motor was modeled using the MATLAB SIMULINK software. Multi-carrier pulse width modulation (PD) phase alignment (PD) techniques were used to generate switching pulses. Extensive research is carried out to study various performance parameters of the induction motor, such as the FFT analysis and the load torque, the stator current where the motor speed, the rotor current, etc. were investigated. The results are verified by the MATLAB / SIMULINK environment.