A NOVEL MULTILEVEL INVERTER TOPOLOGY FOR SYMMETRIC AND ASYMMETRIC SOURCE CONFIGURATION WITH REDUCED DEVICE COUNT

IF 0.3 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

International Journal of Power and Energy Systems Pub Date : 2022-01-01 DOI:10.2316/j.2022.203-0241

D. Kumar, R. Nema, Supryia Gupta, Sudeshna Ghosh

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引用次数: 0

Abstract

Multilevel inverters (MLIs) are very popular in renewable energy applications due to reduced voltage stress and less total harmonics distortion. However, in conventional two-level inverters, the number of devices increases with the increase in the number of output voltage levels, and the circuit becomes bulky and expensive. An MLI topology with the reduced number of power devices especially for the higher output levels is presented in this paper. Forty-nine levels can be generated in the output voltage waveform from this circuit by using only 12 power switches. The performance of the proposed topology is evaluated through MATLAB/Simulink in detailed simulation and power loss analysis. Theoretical analysis and simulation are presented to demonstrate the feasibility and eﬀectiveness of the proposed MLI topology. A comparative analysis shows that the proposed MLI topology is superior to other selected existing topologies on many parameters. Finally, the simulation results the proposed MLI topology are experimentally validated using the experimental results.

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一种新颖的多电平逆变器拓扑结构，用于减少器件数量的对称和非对称源配置

多电平逆变器(mli)在可再生能源应用中非常受欢迎，因为它降低了电压应力和总谐波失真。然而，在传统的双电平逆变器中，器件数量随着输出电压电平的增加而增加，电路变得体积庞大，价格昂贵。本文提出了一种减少功率器件数量的MLI拓扑结构，特别适用于高输出电平。仅使用12个电源开关，该电路的输出电压波形就能产生49个电平。通过MATLAB/Simulink对所提拓扑的性能进行了详细的仿真和功耗分析。理论分析和仿真验证了所提出的MLI拓扑的可行性和有效性。对比分析表明，所提出的MLI拓扑在许多参数上都优于其他选择的现有拓扑。最后，利用实验结果验证了所提出的MLI拓扑结构的仿真结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Power and Energy Systems ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

1.00

自引率

0.00%

发文量

期刊介绍： First published in 1972, this journal serves a worldwide readership of power and energy professionals. As one of the premier referred publications in the field, this journal strives to be the first to explore emerging energy issues, featuring only papers of the highest scientific merit. The subject areas of this journal include power transmission, distribution and generation, electric power quality, education, energy development, competition and regulation, power electronics, communication, electric machinery, power engineering systems, protection, reliability and security, energy management systems and supervisory control, economics, dispatching and scheduling, energy systems modelling and simulation, alternative energy sources, policy and planning.