Switched-Capacitor-Based Multi-Source Multilevel Inverter With Reduced Part Count

被引:13
|
作者
Singh, Deepak [1 ]
Sandeep, N. [1 ]
机构
[1] Malaviya National Institute of Technology, Department of Electrical Engineering, Jaipur,302017, India
来源
IEEE Journal of Emerging and Selected Topics in Industrial Electronics | 2023年 / 4卷 / 03期
关键词
Electric inverters - Electric power distribution - Harmonic analysis;
D O I
10.1109/JESTIE.2023.3281252
中图分类号
学科分类号
摘要
In this article, we propose a switched-capacitor (SC)-based multisource multilevel inverter (MSMLI) for high-frequency ac power distribution systems. The proposed topology is a potential alternative in applications involving asymmetric dc voltage sources (in the case of renewable source-based ac microgrids). Using the available dc sources as an aggregated input eliminates the need for paralleling of inverters. In addition, the proposed topology offers a common ground among the multiple input sources and, thus, has a more straight forward design and avoids stacking voltage sources. By employing nine switches, two diodes, and two SCs, an 11-level voltage waveform is synthesized. The SC voltages are self-balanced owing to their series-parallel charging technique. A simple selective harmonic elimination technique is used to obtain the desired output voltage level and simultaneously eliminate the lower order harmonics. A detailed comparison of the proposed MSMLI is carried out, and the test results obtained from a laboratory prototype are presented to validate the feasibility and highlight the benefits of the proposed topology. © 2020 IEEE.
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收藏
页码:718 / 724
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