Quasi Z Source Inverter Fed Induction Motor Drive Using Chaotic Carrier Sinusoidal PWM

The advancement of power semiconductor devices and digital control has resulted in a significant increase in the operation of Adjustable-Speed Drives (ASD). On the majority of these drives, the deterministic PWM approach is used. The harmonic components of the output voltage of deterministic PWM are coordinated around the switching frequency and its multiples. Acoustic noise is caused by torque ripples and interferences. Non-deterministic PWM is utilised to address these issues, which results in the spreading of harmonic power in the drive's output voltage. Control techniques and extensive simulation diagrams of Q-ZSI utilised for induction motors are explored in this work. The working principle of the proposed Q-ZSI-based induction motor is established, and the open loop and closed loop results are validated using MATLAB simulation.