High-Performance Multi-Level Inverter with Symmetry and Simplification-Reference-Cited by-同舟云学术

High-Performance Multi-Level Inverter with Symmetry and Simplification

Published:2024-06-07 Issue:6 Volume:15 Page:766
ISSN:2072-666X
Container-title:Micromachines
language:en
Short-container-title:Micromachines

Author:

Shieh Jenn-Jong¹^ORCID,Hwu Kuo-Ing²^ORCID,Chen Sheng-Ju²

Affiliation:

1. Department of Electrical Engineering, Feng Chia University, No. 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan

2. Department of Electrical Engineering, National Taipei University of Technology, No. 1, Sec. No. 3, Zhongxiao E. Rd., Taipei 10608, Taiwan

Abstract

This paper presents a high-performance, multilevel inverter with symmetry and simplification. This inverter is a single-phase, seven-level symmetric switched-capacitor inverter based on the concept of the double voltage clamping circuit connected to the half-bridge circuit. Above all, only a single DC power supply is used to achieve a single-phase inverter with seven levels and a voltage gain of three. In addition to analyzing the operating principle of the proposed switched-capacitor multilevel inverter in detail, the stability analysis and controller design are carried out by the state-space averaging method. The feasibility and effectiveness of the proposed structure are validated by some simulated results based on the PSIM simulation tool and by some experiments using FPGA as a control kernel, respectively. However, in this study, the switches were implemented by MOSFETs to meet a high switching frequency. These MOSFETs can be replaced by IGBTs in the motor drive applications so that the used switching frequency can be reduced.

Funder

National Science and Technology Council, Taiwan

Publisher

MDPI AG

Link

https://www.mdpi.com/2072-666X/15/6/766/pdf

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