MATLAB Code Implementation for SIMULINK Simulation of Carrier Phase-Shift SPWM in Cascaded Converters

This MATLAB SIMULINK simulation program is designed to implement Carrier Phase-Shift SPWM (CPS-SPWM) control for cascaded converters. The control methodology employs phase-shifted carrier signals across multiple cascaded converter modules to achieve precise output voltage and current regulation. The simulation implements advanced mathematical models and algorithms using MATLAB's Power Systems toolbox components, including carrier signal generators with configurable phase shifts and PWM comparator blocks. Key functions include carrier waveform generation with programmable phase angles, modulation index calculation, and gate signal synthesis for power semiconductor devices. Through comprehensive result analysis, the simulation enables evaluation of CPS-SPWM's advantages in harmonic reduction and power quality improvement, while identifying practical limitations in implementation complexity. The modular simulation structure supports further research and optimization of control strategies for various application requirements, featuring configurable parameters for carrier frequency, phase-shift angles, and load conditions.