Research on FPGA controlled three phase Photovoltaic (PV) inverter using Multi-Carrier Pulse Width Modulation (MC-PWM) is presented in this article. In this proposed work, reduced active switching count, transformers, Single DC input (SDC), modular topologies and redundancy are key advantages. The proposed three-phase five level Multilevel Inverter (MLI) with SDC source using three-phase transformer is controlled by MC-PWM schemes. To evaluate the performance of the inverter, a Phase Disposition (PD), Phase Opposite Disposition (POD) and Alternate Phase Opposite Disposition (APOD) have been proposed. The effectiveness of the inverter is analyzed in terms of Total Harmonic Distortion (THD) by varying the Modulation Index(MI). Field Programmable Gate Array (FPGA) can realized for generation gating pulses to the inverter. The results were analyzed through MATLAB/Simulink and validated by FPGA based experimental setup.

本文介绍了使用多载波脉宽调制（MC-PWM）的FPGA控制的三相光伏（PV）逆变器的研究。在这项拟议的工作中，减少有源开关数量，变压器，单直流输入（SDC），模块化拓扑和冗余是关键优势。所提出的带有三相变压器的SDC源的三相五电平多电平逆变器（MLI）由MC-PWM方案控制。为了评估逆变器的性能，已经提出了相位配置（PD），相位相反配置（POD）和交替相位相反配置（APOD）。通过改变调制指数（MI），可以根据总谐波失真（THD）来分析逆变器的有效性。可以实现现场可编程门阵列（FPGA），以生成门控脉冲到逆变器。