基于载波移相脉宽调制（CB-PWM）技术的单直流母线三相多电平逆变器的设计与实现。

Design and implementation of single DC-link based three-phase multilevel inverter with CB-PWM techniques.

作者信息

Varaprasad Madisa V G, Nuvvula Ramakrishna S S, Kumar Polamarasetty P, Radwan Neyara, Dhanamjayulu C, Shaik Mohammed Rafi, Khan Baseem

机构信息

Department of Electrical and Electronics Engineering, Vignan's Institute of Information Technology, Duvvada, Visakhapatnam, 530049, India.

Deparmtent of Electrical and Electronics Engineering, NMAM Institute of Technology, NITTE (Deemed to Be University), Karnataka, 574110, India.

出版信息

Sci Rep. 2024 Aug 5;14(1):18078. doi: 10.1038/s41598-024-68293-y.

DOI:10.1038/s41598-024-68293-y

PMID:39103412

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11300636/

Abstract

Simulation and implementation of a single DC-link-based three-phase inverter are investigated in this article. The primary focus is on designing a single DC-link three-phase inverter for high power applications. Unlike conventional inverters that require 600 V to generate 400 V (RMS) at the output, the proposed system achieves this with only 330 V, facilitated by a 12-terminal 1:1 transformer. The system employs Proportional Integral (PI) and Neural Network (NN) controllers to optimize performance. Various Carrier-Based Pulse Width Modulation (CB-PWM) techniques, including Phase Disposition (PD), Phase Opposition Disposition (POD), and Alternative Phase Opposition Disposition (APOD), are implemented and evaluated based on Total Harmonics Distortion (THD) concerning the Modulation Index (MI) of the inverter. The proposed inverter achieves a THD reduction to 4.8%, demonstrating superior performance compared to recent studies. The system's performance is validated through extensive MATLAB/Simulink simulations and practical implementation using XILINX FPGA software, confirming the efficacy of the proposed design.

摘要

本文研究了基于单直流母线的三相逆变器的仿真与实现。主要重点是设计一种用于高功率应用的单直流母线三相逆变器。与传统逆变器在输出端需要600V才能产生400V（均方根值）不同，所提出的系统仅需330V就能实现这一点，这得益于一个12端子1:1变压器。该系统采用比例积分（PI）和神经网络（NN）控制器来优化性能。基于逆变器的调制指数（MI），实现并评估了各种基于载波的脉宽调制（CB-PWM）技术，包括相位配置（PD）、相位相反配置（POD）和交替相位相反配置（APOD），并根据总谐波失真（THD）进行评估。所提出的逆变器实现了总谐波失真降低至4.8%，与近期研究相比显示出卓越的性能。通过广泛的MATLAB/Simulink仿真以及使用XILINX FPGA软件的实际实现，验证了该系统的性能，证实了所提设计的有效性。