Three-Level Converter SIMULINK Model

This article presents a comprehensive SIMULINK model for three-level converters. Designed particularly for beginners unfamiliar with three-level converter architectures and PWM generation algorithms, this model demonstrates practical implementation through modular subsystem blocks including carrier-based PWM generation, voltage balancing control, and switching logic circuits. Through studying this model, users will gain deeper insights into the operational principles and practical applications of three-level converters. The discussion extends to detailed analysis of different operating modes (such as neutral point clamping states) and optimization techniques for PWM algorithms, including phase-shifted carrier modulation and space vector modulation implementations, to enhance system performance metrics like harmonic distortion and switching losses. By exploring this material, readers will develop a thorough understanding of three-level converters and acquire skills to adapt these concepts in real-world applications.