Enhancing the Static and Dynamic Parameters in Asymmetrical Multilevel Inverter fed Induction Motor Drive operated at Low Switching Frequency

Abstract

Abstract This article describes how to build a solar photovoltaic-fed multilevel inverter with a low switch count to power an induction motor. The proposed system consists of a photovoltaic (PV) panel, an Asymmetrical Multi-Level Inverter (AMLI), and an induction motor drive. The proposed AMLI is made up of two DC sources, which are powered by PV panels. The main advantage of this method is that it does not require an auxiliary circuit to generate negative levels. The MATLAB/ Simulink model is used to investigate an AMLI using a Dual Carrier Multi Reference PWM (DCMRPWM) technique for renewable energy applications. Likewise, the proposed work includes an adaptive fuzzy logic-based closed-loop control solution for faster induction machine settling time, higher system efficiency, and reduction in total harmonic distortion (THD) without the use of a filter circuit. The findings indicate that the proposed control system is effective at reducing losses and increasing system efficiency. The system's performance is also compared to that of the standard PI controller. Similarly, this paper proposes an optimal switching strategy for reducing torque ripples in an induction motor drive.