Space Vector Modulation for Three-Level Cascaded NPC Inverters

This article presents a MATLAB simulation strategy for space vector modulation in three-level cascaded neutral point clamped (NPC) inverters. The strategy enables comprehensive analysis of operational principles and performance characteristics for this inverter topology. Through MATLAB simulations, researchers can model and adjust various parameters such as switching frequencies, modulation indices, and dead-time durations to optimize space vector modulation performance. The implementation involves key MATLAB functions including sector identification algorithms, dwell time calculations using trigonometric transformations, and PWM generation techniques. This approach provides valuable assistance in designing and optimizing control strategies for three-level cascaded NPC inverters, offering practical references for both research and industrial applications in power electronics. The article aims to support readers in their learning and professional work within this technical domain.