Sinusoidal PWM vs SVPWM for NPC Multilevel Inverter with Proportional Control Based Neutral Point Voltage Controller for Induction Motor Drive
E. Nandhini *
College of Engineering Guindy, Anna University, Chennai, India.
A. Sivaprakasam
College of Engineering Guindy, Anna University, Chennai, India.
*Author to whom correspondence should be addressed.
Abstract
This study compares sinusoidal PWM and SVPWM for v/f control of induction motor drive with three level inverter and under various modulation indices. It also suggests a proportional control-based neutral point controller for neutral point voltage balancing.When compared to the similar methodologies, the simulation results produced in the MATLAB/Simulink environment show that the proposed method is preferable.
Keywords: Sinusoidal PWM, SVPWM, NPC multilevel inverter, induction motor drive, neutral point voltage controller