FPGA-based real-time simulation of a full bridge-RL load SPWM inverter

Abstract

This work presents a FPGA-implemented real-time simulation of a full-bridge RL load inverter, using Sinusoidal Pulse Width Modulation (SPWM). The selected methodology consist on obtaining the mathematical model of the full-bridge RL load inverter based on state equations for every switching state of the converter and then solving the set of state equations corresponding to the topological state in every integration step to obtain an accurate and deterministic response. The obtained algorithm is implemented in a real-time platform whose main characteristics are: high-performance FPGA, real-time processor and ultra-high-level programming language (graphic programming).