Three-Level SVPWM Simulation Models with Implementation Analysis

For in-depth research and analysis of three-level SVPWM control strategies, we have developed two comprehensive simulation models accompanied by relevant technical literature. These models implement the space vector modulation algorithm for three-level inverters, featuring sector identification, switching sequence generation, and duty cycle calculation functions. Through these simulation models, we can better understand and evaluate the application effectiveness of three-level SVPWM control in power systems. The implementation includes key algorithms for reference vector positioning in the two-dimensional alpha-beta coordinate system and optimal switching state selection to minimize harmonic distortion. Furthermore, by comparing experimental results with theoretical analyses from the literature, we can validate the accuracy and reliability of our simulation models. The MATLAB/Simulink implementations incorporate modular design with separate function blocks for Clarke transformation, space vector sector determination, and PWM signal generation. These research findings hold significant importance for optimizing power system design and enhancing performance metrics such as total harmonic distortion (THD) and switching losses.