Space Vector PWM Inverter Implementation Using MATLAB

This document discusses the implementation of a Space Vector PWM (Pulse Width Modulation) inverter using MATLAB. PWM is a widely used technique for controlling AC voltage in power electronic devices. The Space Vector PWM inverter represents an advanced inverter topology that offers higher power conversion efficiency and lower harmonic distortion compared to conventional methods.

We will explore the fundamental principles and advantages of Space Vector PWM inverters, providing a comprehensive implementation guide with MATLAB code examples. The implementation involves key algorithmic steps including sector identification, switching time calculation, and pulse pattern generation using MATLAB's Simulink environment and embedded functions.

The code implementation typically includes:

• Clarke transformation for converting three-phase quantities to α-β coordinates
• Sector determination algorithm based on voltage vector angle calculation
• Dwelling time computation using trigonometric relationships
• Switching sequence generation with proper zero vector distribution
• Real-time implementation considerations using MATLAB's PWM block sets

The MATLAB code demonstrates how to generate precise switching signals for power electronic devices, optimizing voltage utilization and minimizing harmonic content through sophisticated vector modulation techniques.