A Novel Topology of Fifteen Level Multilevel Inverter with Harmonic Elimination Using GASHE

2018 International Conference on Power Energy, Environment and Intelligent Control (PEEIC) Pub Date : 2018-04-13 DOI:10.1109/PEEIC.2018.8665455

Rohit Kumar, S. Shimi, Shivendra Kaura

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引用次数: 7

Abstract

Renewable energy sources such as fuel cell, solar, Magneto hydro Dynamic (MHD), geothermal are the best alternatives to solve the problem of environmental issue and increasing demand of energy. The output of these resources is dc, therefore to connect these resources to the grid, multilevel inverter is the key device. But the output of multilevel inverter has power quality issues such as harmonic generation and notching due to conversion of dc to ac and high number of switch. Hence, this paper deals with harmonic elimination using Genetic Algorithm based Selective Harmonic Elimination (GA-SHE) techniques for asymmetric and symmetric topology of MLI. In the present study, comparative study among various multilevel inverters with reduced number of switches topologies has been discussed. A novel topology of single phase 15-level inverter which consists least number of switches has been designed for a desired voltage level. Also, the comparison of Total harmonic distortion(THD) developed in the proposed 15-level inverter with output voltage generated by different topology at different levels are discussed. The output of proposed topology contains THD (<5%) as per IEEE 519 standard.

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基于GASHE的15电平多电平谐波消除逆变器新拓扑

燃料电池、太阳能、磁流体动力(MHD)、地热等可再生能源是解决环境问题和日益增长的能源需求的最佳选择。这些资源的输出是直流电，因此要将这些资源接入电网，多电平逆变器是关键设备。但多电平逆变器的输出由于直流到交流的转换和开关数多，存在谐波产生和陷波等电能质量问题。因此，本文研究了基于遗传算法的选择性谐波消除(GA-SHE)技术在非对称和对称MLI拓扑中的谐波消除问题。在本研究中，对各种开关拓扑数目减少的多电平逆变器进行了比较研究。设计了一种新颖的单相15电平逆变器拓扑结构，该拓扑结构由最少数量的开关组成，以满足所需的电压水平。此外，还讨论了不同拓扑在不同电平上产生的输出电压对15电平逆变器总谐波失真(THD)的影响。根据IEEE 519标准，提出的拓扑输出包含THD(<5%)。

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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2018 International Conference on Power Energy, Environment and Intelligent Control (PEEIC)

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