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一种用于工业和可再生应用的具有旋转梯形正弦脉宽调制（SPWM）的创新型11电平多电平逆变器拓扑结构。

An innovative 11-level multilevel inverter topology with rotating trapezoidal SPWM for industrial and renewable applications.

作者信息

Shakeera Shaik, Rachananjali K

机构信息

Vignan's Foundation for Science Technology and Research, Vadlamudi, India.

出版信息

Sci Rep. 2024 Sep 27;14(1):22359. doi: 10.1038/s41598-024-73791-0.

DOI:10.1038/s41598-024-73791-0
PMID:39333587
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11436822/
Abstract

This paper provides a new, less complex multilevel inverter topology that can be used for industrial loads and renewable energy sources. The arrangement consists of eight switches to produce an 11-level output voltage with two uneven input sources. Moreover, it can be connected in a cascade to increase the output voltage and number of levels even further. Due to its control mechanism, which is based on the Rotating Trapezoidal Sinusoidal Pulse Width Modulation control method for creating a high-quality output voltage, the inverter's key characteristic is its very low harmonic distortion of 3.45% at the output voltage when compared to the advanced triangular carrier-based PWM techniques of phase disposition sinusoidal pulse width modulation (PD-SPWM) it produces harmonic distortion of 11.38% at the output voltage, phase opposition disposition sinusoidal pulse width modulation (POD-SPWM) it produces harmonic distortion of 6.43% at the output voltage, alternative phase opposition disposition sinusoidal pulse width modulation (APOD-SPWM) it produces harmonic distortion of 6.69% at the output voltage, IN-Shift sinusoidal pulse width modulation (IN-shift SPWM) it produces harmonic distortion of 3.93% at the output voltage. This inverter is commonly used in wind turbines and solar cells. The schemes are implemented in MATLAB/SIMULINK and are validated with single-phase 11-level inverter implemented by using digital signal controller (DSC).

摘要

本文提出了一种新型的、复杂度较低的多电平逆变器拓扑结构，可用于工业负载和可再生能源。该结构由八个开关组成，用于在两个不平衡输入源的情况下产生11电平的输出电压。此外，它可以级联连接以进一步提高输出电压和电平数。由于其控制机制基于旋转梯形正弦脉宽调制控制方法来产生高质量的输出电压，该逆变器的关键特性是其输出电压的谐波失真非常低，仅为3.45%。相比之下，基于先进三角载波的脉宽调制技术，如相移正弦脉宽调制（PD-SPWM）在输出电压时产生的谐波失真为11.38%，反相相移正弦脉宽调制（POD-SPWM）在输出电压时产生的谐波失真为6.43%，交替反相相移正弦脉宽调制（APOD-SPWM）在输出电压时产生的谐波失真为6.69%，内移正弦脉宽调制（IN-shift SPWM）在输出电压时产生的谐波失真为3.93%。这种逆变器常用于风力涡轮机和太阳能电池。这些方案在MATLAB/SIMULINK中实现，并通过使用数字信号控制器（DSC）实现的单相11电平逆变器进行了验证。

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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3538/11436822/962291064440/41598_2024_73791_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3538/11436822/2cf38ab1151b/41598_2024_73791_Fig9_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3538/11436822/3769d3776d67/41598_2024_73791_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3538/11436822/c396682d4b80/41598_2024_73791_Fig12_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3538/11436822/0079fcc6e10d/41598_2024_73791_Fig13_HTML.jpg
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A new seven level boost-type ANPC inverter topology for photovoltaic applications.一种用于光伏应用的新型七电平升压型有源中性点钳位（ANPC）逆变器拓扑结构。
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