Generalized Switched-Capacitor-Based Hybrid Multilevel Inverter With Reduced Components Count and Inrush Current

IF 5.2 1区 工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Transactions on Circuits and Systems I: Regular Papers Pub Date : 2024-08-20 DOI:10.1109/TCSI.2024.3443188
Niraj Kishore;Kapil Shukla;Nitin Gupta
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Abstract

This article presents a novel topology for a three-phase switched-capacitor (SC) based hybrid multilevel inverter (HMLI) with boosted output voltage. The proposed topology employs generalised structure of SC-based inverters (SCBIs) to improve the output voltage levels utilising SC cells. The proposed structure additionally features self-charging and voltage-balancing capabilities of the SCs, without the need of auxiliary circuit/sensor. A modified PWM (MPWM) technique is utilized to modulate the system. The MPWM results in improved output voltage profile and reduction in voltage ripple across the SCs. The proposed structure is quantitatively compared with the state-of-the-art topologies to demonstrate its advantages in the terms of reduced components count, low maximum blocking voltage (MBV), low total standing voltage (TSV), lessened total harmonic distortion (THD), lowered cost function (CF) per level, and boosted output voltage. The performance of the proposed topology is verified in MATLAB/Simulink environment and a laboratory prototype is developed to confirm the feasibility to operate at steady-state and dynamic conditions.
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基于通用开关电容器的混合多电平逆变器可减少元件数量和浪涌电流
本文提出了一种新型拓扑结构,用于基于开关电容器(SC)的三相混合多电平逆变器(HMLI),该逆变器具有升压输出电压。所提出的拓扑结构采用了基于 SC 逆变器 (SCBI) 的通用结构,利用 SC 单元提高了输出电压水平。拟议的结构还具有 SC 的自充电和电压平衡能力,无需辅助电路/传感器。系统采用改进的 PWM(MPWM)技术进行调制。MPWM 可改善输出电压曲线,减少 SC 上的电压纹波。对所提出的结构与最先进的拓扑结构进行了定量比较,以证明其在减少元件数量、降低最大阻塞电压 (MBV)、降低总驻波电压 (TSV)、减少总谐波失真 (THD)、降低每级成本函数 (CF) 和提升输出电压等方面的优势。在 MATLAB/Simulink 环境中验证了拟议拓扑结构的性能,并开发了一个实验室原型,以确认在稳态和动态条件下运行的可行性。
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
IEEE Transactions on Circuits and Systems I: Regular Papers
IEEE Transactions on Circuits and Systems I: Regular Papers 工程技术-工程:电子与电气
CiteScore
9.80
自引率
11.80%
发文量
441
审稿时长
2 months
期刊介绍: TCAS I publishes regular papers in the field specified by the theory, analysis, design, and practical implementations of circuits, and the application of circuit techniques to systems and to signal processing. Included is the whole spectrum from basic scientific theory to industrial applications. The field of interest covered includes: - Circuits: Analog, Digital and Mixed Signal Circuits and Systems - Nonlinear Circuits and Systems, Integrated Sensors, MEMS and Systems on Chip, Nanoscale Circuits and Systems, Optoelectronic - Circuits and Systems, Power Electronics and Systems - Software for Analog-and-Logic Circuits and Systems - Control aspects of Circuits and Systems.
期刊最新文献
Table of Contents IEEE Circuits and Systems Society Information TechRxiv: Share Your Preprint Research with the World! IEEE Transactions on Circuits and Systems--I: Regular Papers Information for Authors Guest Editorial Special Issue on the International Symposium on Integrated Circuits and Systems—ISICAS 2024
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