DYNAMIC PERFORMANCE ASSESSMENT OF THREE-PHASE INVERTER DRIVEN INDUCTION MOTOR

Abstract

The dynamic performance of inverter-driven induction motors is a key factor in determining the efficiency, reliability, and controllability of modern electric drive systems. The use of three-phase voltage source inverters enables variable-speed operation, improved energy efficiency, and enhanced dynamic response compared to conventional fixed-frequency supplies. This paper presents a comprehensive dynamic performance assessment of a three-phase inverter driven induction motor using simulation-based analysis. A detailed mathematical and simulation model of the inverter–motor system is developed in MATLAB/Simulink to investigate transient and steady-state behaviors under various operating conditions. The study evaluates critical performance parameters including speed response, electromagnetic torque characteristics, stator current dynamics, and harmonic effects during startup, load disturbances, and speed variations. The results demonstrate that inverter-based control provides smooth speed regulation, reduced torque ripple, and improved dynamic stability. The findings of this work highlight the effectiveness of inverter-fed induction motor drives for industrial and variable-speed applications and provide valuable insights for the design and optimization of high-performance motor drive systems.